Which of the following statements is the characteristics of human cornea? (a) It is secreted by conjuctiva and glandular layer. (b) It is a lacrimal gland which secrete tears. (c) Blood circulation is absent in cornea. (d) In old age it becomes the cause of cataract.

Which of the following statements is the
characteristics of human cornea?
(a) It is secreted by conjuctiva and glandular layer.
(b) It is a lacrimal gland which secrete tears.
(c) Blood circulation is absent in cornea.
(d) In old age it becomes the cause of cataract.
by

1 Answer

Answer :

(c) Blood circulation is absent in cornea.
by

Related questions

Which of the following represents the correct combination without any exception ? Characteristics Class (a) Sucking and circular mouth; jaws absent, integument without scales; paired appendages. Cyclostomata (b) Body covered with feathers; skin moist and glandular, fore- limbs form wings; (c) Mammary gland; hair on body; pinnae; two pairs of limbs. Mammalia (d) Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. Chondrichthyeslungs with air sacs. Aves

Description : Which of the following represents the correct combination without any exception ? Characteristics Class (a) Sucking and circular mouth; jaws absent, integument without scales; paired ... Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. Chondrichthyes

Last Answer : (c) Mammary gland; hair on body; pinnae; two pairs of limbs. Mammalia

With regard to immunoglobulin A: a. it is the heaviest immunoglobulin b. it is the first immunoglobulin to be produced when the body is invaded by viruses c. it is secreted by the lacrimal gland d. it is secreted in the breast milk

Description : With regard to immunoglobulin A: a. it is the heaviest immunoglobulin b. it is the first immunoglobulin to be produced when the body is invaded by viruses c. it is secreted by the lacrimal gland d. it is secreted in the breast milk

Last Answer : it is secreted by the lacrimal gland

Which of the following hormones is primarily responsible for stimulating the production of progesterone? a) Luteinizing hormone Luteinizing hormone is released by the pituitary gland. b) Follicle-stimulating hormone Follicle-stimulating hormone is responsible for stimulating the ovaries to secrete estrogen. c) Estrogen Estrogens are responsible for developing and maintaining the female reproductive tract. d) Androgen Androgens, secreted in small amounts by the ovaries, are involved in early development of the follicle and also affect the female libido.

Description : Which of the following hormones is primarily responsible for stimulating the production of progesterone? a) Luteinizing hormone Luteinizing hormone is released by the pituitary gland. b) Follicle-stimulating ... , are involved in early development of the follicle and also affect the female libido.

Last Answer : a) Luteinizing hormone Luteinizing hormone is released by the pituitary gland.

The nasociliary nerve supplies: a. the sphenoidal sinus b. ethmoidal sinus c. cornea d. lacrimal sac e. all above

Description : The nasociliary nerve supplies: a. the sphenoidal sinus b. ethmoidal sinus c. cornea d. lacrimal sac e. all above

Last Answer : all above

The commonest cause of unilateral exophthalmos is: a. Thyroid eye disease b. Lacrimal gland tumour c. Orbital cellulitis d. Cavernous sinus thrombosis

Description : The commonest cause of unilateral exophthalmos is: a. Thyroid eye disease b. Lacrimal gland tumour c. Orbital cellulitis d. Cavernous sinus thrombosis

Last Answer : ANSWER: A

______ is the defect which occurs in eye due to excessive curvature of cornea and person is not able to see distant objects clearly . a)myopia b)hypermetropia c)squint d)cataract

Description : ______ is the defect which occurs in eye due to excessive curvature of cornea and person is not able to see distant objects clearly . a)myopia b)hypermetropia c)squint d)cataract

Last Answer : a)myopia

n human adult females oxytocin (a) stimulates pituitary to secrete vasopressin (b) causes strong uterine contractions during parturition (c) is secreted by anterior pituitary (d) stimulates growth of mammary glands.

Description : n human adult females oxytocin (a) stimulates pituitary to secrete vasopressin (b) causes strong uterine contractions during parturition (c) is secreted by anterior pituitary (d) stimulates growth of mammary glands.

Last Answer : (b) causes strong uterine contractions during parturition

The following structure arise from surface ectoderm: a. conjunctival epithelium b. lens c. lacrimal gland d. all above

Description : The following structure arise from surface ectoderm: a. conjunctival epithelium b. lens c. lacrimal gland d. all above

Last Answer : all above

The following are true about lacrimal gland: a. the palpebral part drains into the superior conjunctival fornix through 12 ducts b. the palpebral part of the gland is 1/3 the size of the orbital part c. excision of palpebral but no the orbital part abolish the tear secretion by the glandd. it receives secretomotor nerve from the third cranial nerve e. the lymphatic drainage is to parotid gland

Description : The following are true about lacrimal gland: a. the palpebral part drains into the superior conjunctival fornix through 12 ducts b. the palpebral part of the gland is 1/3 the size of the ... it receives secretomotor nerve from the third cranial nerve e. the lymphatic drainage is to parotid gland

Last Answer : the palpebral part drains into the superior conjunctival fornix through 12 ducts

Which of the following glands secrete tears? A. Lachrymal (Answer) B. Pituitary C. Thyroid D. Pancreas

Description : Which of the following glands secrete tears? A. Lachrymal (Answer) B. Pituitary C. Thyroid D. Pancreas

Last Answer : A. Lachrymal (Answer)

Which of the following glands secrete tears? A.Lachrymal B.Pituitary C.Thyroid D.Pancreas

Description : Which of the following glands secrete tears? A.Lachrymal B.Pituitary C.Thyroid D.Pancreas

Last Answer : A.Lachrymal

3 months old infant with watering lacrimal sac on pressing causes regurgitation of mucopus material. What is the appropriate treatment? a. Dacryocystorhinostomy b. Probing c. Probing with syringing d. Massage with antibiotics up to age of 6 months e. Dacryocystectomy

Description : 3 months old infant with watering lacrimal sac on pressing causes regurgitation of mucopus material. What is the appropriate treatment? a. Dacryocystorhinostomy b. Probing c. Probing with syringing d. Massage with antibiotics up to age of 6 months e. Dacryocystectomy

Last Answer : ANSWER: D

Verrryy long scenario of old age pt with DM, HTN, hx of multiple cardiac attack, CVA, came for routine check up in PHC, u found bilateral opacification in both lenses, with decreasing of visual acuity, u will: Refer to lazer therapist refer to cataract surgeon refer to ophthalmologist follow up 60-patient on glaucoma medication for weeks came with SOB, cough the cause a- timolol b- betoxolol c- pilocarpin

Description : Verrryy long scenario of old age pt with DM, HTN, hx of multiple cardiac attack, CVA, came for routine check up in PHC, u found bilateral opacification in both lenses, with decreasing of visual ... glaucoma medication for weeks came with SOB, cough the cause a- timolol b- betoxolol c- pilocarpin

Last Answer : a- timolol

After 48 hours of a cataract extraction operation, a patient complained of ocular pain and visual loss. On examination, this eye looked red with ciliary injection, corneal oedema and absent red reflex. The first suspicion must be: a. Secondary glaucoma. b. Anterior uveitis. c. Bacterial endophthalmitis. d. Acute conjunctivitis

Description : After 48 hours of a cataract extraction operation, a patient complained of ocular pain and visual loss. On examination, this eye looked red with ciliary injection, corneal oedema and absent red ... a. Secondary glaucoma. b. Anterior uveitis. c. Bacterial endophthalmitis. d. Acute conjunctivitis  

Last Answer : ANSWER: C

Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristic and/ or functions. (a) C - Medulla - inner zone of kidney and contains complete nephrons. (b) D - Cortex - outer part of kidney and do not contain any part of nephrons. (c) A - Adrenal gland - located at the anterior part of kidney. Secrete catecholamines which stimulate glycogen breakdown. (d) B - Pelvis - broad funnel shaped space inner to hilum, directly connected to loops of Henle

Description : Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristic and/ or functions. (a) C - Medulla - inner zone of ... B - Pelvis - broad funnel shaped space inner to hilum, directly connected to loops of Henle

Last Answer : (c) A - Adrenal gland - located at the anterior part of kidney. Secrete catecholamines which stimulate glycogen breakdown.

The inner glandular layer of uterus is

Description : The inner glandular layer of uterus is

Last Answer : The inner glandular layer of uterus is A. Endometrium B. Myometrium C. Fallopian tubes D. Perimerium

Which of the following statements is correct? (a) Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye. (b) Cornea is an external, transparent and protective proteinacious covering of the eye-ball. (c) Cornea consists of dense connective tissue of elastin and can repair itself. (d) Cornea is convex, transparent layer which is highly vascularised.

Description : Which of the following statements is correct? (a) Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye. (b) Cornea is an external, transparent and protective ... elastin and can repair itself. (d) Cornea is convex, transparent layer which is highly vascularised.

Last Answer : (a) Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.

Para amino hippurate is (A) Filtered at glomeruli and secreted by the tubules (B) Filtered at glomeruli and not secreted by the tubules (C) Filtered at glomeruli and reabsorbed completely (D) Not removed completely during a single circulation of the blood through the kidney.

Description : Para amino hippurate is (A) Filtered at glomeruli and secreted by the tubules (B) Filtered at glomeruli and not secreted by the tubules (C) Filtered at glomeruli and reabsorbed completely (D) Not removed completely during a single circulation of the blood through the kidney.

Last Answer : Answer : A

Assertion :- Blood circulation is absent in epithelium. Reason :- power of regenration is absent in epithelium

Description : Assertion :- Blood circulation is absent in epithelium. Reason :- power of regenration is absent in epithelium

Last Answer : Assertion :- Blood circulation is absent in epithelium. Reason :- power of regenration is absent in ... D. If both Assertion & Reason are false.

True statements about chloroquine include: a. is safer than hydroxychloroquine at equivalent dose b. can cause corneal deposition c. causes posterior subcapsular cataract d. chloroquine is bound to the melanin of the retinal pigment epithelium e. causes reversible toxic maculopathy

Description : True statements about chloroquine include: a. is safer than hydroxychloroquine at equivalent dose b. can cause corneal deposition c. causes posterior subcapsular cataract d. chloroquine is bound to the melanin of the retinal pigment epithelium e. causes reversible toxic maculopathy

Last Answer : can cause corneal deposition

How many tears does each tear gland hold before needing to produce more?

Description : How many tears does each tear gland hold before needing to produce more?

Last Answer : according to anime, several thousand litres.

The salivary gland secrete saliva that contains which enzyme? -Do You Know?

Description : The salivary gland secrete saliva that contains which enzyme? -Do You Know?

Last Answer : answer:

Which gland secrete insulin? -General Knowledge

Description : Which gland secrete insulin? -General Knowledge

Last Answer : For instance, the pancreas secretes insulin, which allows the body to regulate levels of sugar in the blood

Which one of the following does not secrete any digestive enzyme? (1) Liver (2) Salivary gland (3) Glands of small intestine (4) Pancreas

Description : Which one of the following does not secrete any digestive enzyme? (1) Liver (2) Salivary gland (3) Glands of small intestine (4) Pancreas

Last Answer : (1) Liver Explanation: Digestive enzymes are enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body. Digestive enzymes are ... (small and large) secretions, or as part of the lining of the gastrointestinal tract.

Duodenum has characteristic Brunner’s gland which secrete two hormones called (a) kinase, estrogen (b) secretin, cholecystokinin (c) prolactin, parathormone (d) estradiol, progesterone

Description : Duodenum has characteristic Brunner’s gland which secrete two hormones called (a) kinase, estrogen (b) secretin, cholecystokinin (c) prolactin, parathormone (d) estradiol, progesterone

Last Answer : (b) secretin, cholecystokinin

The salivary gland secrete saliva that contains which enzyme?

Description : The salivary gland secrete saliva that contains which enzyme?

Last Answer : Ptyalin

Zymogen cells of gastric gland secrete (a) Pepsinogen (b) Chymotrypsin (c) Pepsin (d) Trypsin

Description : Zymogen cells of gastric gland secrete (a) Pepsinogen (b) Chymotrypsin (c) Pepsin (d) Trypsin

Last Answer : (a) Pepsinogen

1. The salivary gland secrete saliva that contains which enzyme? 2. What does the power of judicial review ensure? 3. Total internal reflection can take place when light travels from which thing? 4. Which country has the largest known reserves of oil? 5. The temples built during the medieval period by which dynasty are known as 'Seven Pagodas' ?

Description : 1. The salivary gland secrete saliva that contains which enzyme? 2. What does the power of judicial review ensure? 3. Total internal reflection can take place when light travels from which thing? 4. ... population? 20. Akbar founded his own religion known as Din-i-Ilahi' what was its mean?

Last Answer : Answer : 1 1. Ptyalin 2. The constitutionality of laws 3. Diamond to glass 4. Kuwait 5. Pallavas 6. Remain constant 7. Aryabhatta 8. Glucose 9. Wegener 10. Alauddin Khalji 11. 73rd 12. ... Dadabhai Naoroji 17. Fallopian tube 18. Ashok Mehta Committee 19. Australia, Canada and Sweden 20. Divine faith

Which one of the following does not secrete any digestive enzyme? (1) Liver (2) Salivary gland (3) Glands of small intestine (4) Pancreas

Description : Which one of the following does not secrete any digestive enzyme? (1) Liver (2) Salivary gland (3) Glands of small intestine (4) Pancreas

Last Answer : Liver

Which one of the following statements is not true? (a) The flowers pollinated by flies and bats secrete foul odour to attract them. (b) Honey is made by bees by digesting pollen collected from flowers. (c) Pollen grains are rich in nutrients and they are used in the form of tablets and syrups. (d) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Description : Which one of the following statements is not true? (a) The flowers pollinated by flies and bats secrete foul odour to attract them. (b) Honey is made by bees by digesting pollen collected ... . (d) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Last Answer : (b) Honey is made by bees by digesting pollen collected from flowers.

A 55-year-old male undergoes a total abdominal colectomy. Which of the following statement(s) is/are true concerning the hormonal response to the surgical procedure? a. Adrenocorticotropic hormone (ACTH) is secreted from the anterior pituitary gland b. ACTH stimulation results in elevation of serum cortisol levels for up to a week after the operation c. An increased secretion of aldosterone and ADH may contribute to postoperative fluid retention d. An increase in serum insulin and a fall in glucagon accelerate hepatic glucose production and maintain gluconeogenesis

Description : A 55-year-old male undergoes a total abdominal colectomy. Which of the following statement(s) is/are true concerning the hormonal response to the surgical procedure? a. Adrenocorticotropic ... in serum insulin and a fall in glucagon accelerate hepatic glucose production and maintain gluconeogenesis

Last Answer : Answer: a, c One of the earliest consequence of a surgical procedure is the rise in levels of circulating cortisol that occur in response to a sudden outpouring of ACTH ... hepatic glucose production, and, with other hormones (epinephrine and glucocorticoids), gluconeogenesis is maintained

What part of the eye gets inflamed and becomes pink when dust gets into ? (1) Cornea (2) Choroid (3) Conjunctiva (4) Sclerotic

Description : What part of the eye gets inflamed and becomes pink when dust gets into ? (1) Cornea (2) Choroid (3) Conjunctiva (4) Sclerotic

Last Answer : Conjunctiva

A 12 years old boy receiving long term treatment for spring catarrh, developed defective vision in both eyes. The likely cause is: a. Posterior subcapsular cataract b. Retinopathy of prematurity c. Optic neuritis d. Vitreous hemorrhage

Description : A 12 years old boy receiving long term treatment for spring catarrh, developed defective vision in both eyes. The likely cause is: a. Posterior subcapsular cataract b. Retinopathy of prematurity c. Optic neuritis d. Vitreous hemorrhage 

Last Answer : ANSWER: A 

The following are true about the ERG: a. in infarction of the choroidal circulation the a-wave of the ERG is reduced or absent b. the ERG is always abnormal in patients with macular diseases c. flicker ERG can be used to isolate cone photoreceptors d. the b-wave of ERG is reduced in dark-adapted eye

Description : The following are true about the ERG: a. in infarction of the choroidal circulation the a-wave of the ERG is reduced or absent b. the ERG is always abnormal in patients with macular diseases c. ... can be used to isolate cone photoreceptors d. the b-wave of ERG is reduced in dark-adapted eye

Last Answer : the b-wave of ERG is reduced in dark-adapted eye

Skin becomes wrinkled in the old age due to (a) loss of elastic tissue in the dermis (b) considerable slag in the rate of dividing cells in the stratum germinativum (c) gradual loss of elasticity in the subcutaneous layer (d) all of these

Description : Skin becomes wrinkled in the old age due to (a) loss of elastic tissue in the dermis (b) considerable slag in the rate of dividing cells in the stratum germinativum (c) gradual loss of elasticity in the subcutaneous layer (d) all of these

Last Answer : Ans:(b)

Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+. (b) Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries. (c) About 60% of starch is hydrolysed by salivary amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Description : Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions ... amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Last Answer : (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na

Which of the following statements regarding neutrophils are true? a. The neutrophil undergoes final maturation after release into the circulation b. Patients with chronic granulomatous disease have a defective neutrophil H-oxidase system c. Neutrophil killing of bacteria is achieved by oxidants, proteinases and cationic proteins d. The normal human neutrophil circulates in the blood for 7–10 days

Description : Which of the following statements regarding neutrophils are true? a. The neutrophil undergoes final maturation after release into the circulation b. Patients with chronic granulomatous disease have a defective ... proteins d. The normal human neutrophil circulates in the blood for 7-10 days

Last Answer : Answer: b, c The neutrophil is a migratory phagocytic cell that defends the host against bacteria and eliminates necrotic tissue. The neutrophil matures in the bone marrow and is ... phagocytose bacteria, they are unable to kill the intracellular microbes and chronic, unresolved infections result

Sensitive layer of the eye is? A. Choriods B. Sclerotic C. Retina (Answer) D. Cornea E. None of these

Description : Sensitive layer of the eye is? A. Choriods B. Sclerotic C. Retina (Answer) D. Cornea E. None of these

Last Answer : C. Retina (Answer)

The following are true about the cornea: a. the stroma contains collagen fibrils of regular thickness b. the Bowman's layer contains randomly arranged collagen fibrils c. the Bowman's layer is the basement layer of the epithelium d. type I collagen is the main type of collagen found in the cornea

Description : The following are true about the cornea: a. the stroma contains collagen fibrils of regular thickness b. the Bowman's layer contains randomly arranged collagen fibrils c. the Bowman's layer is the ... layer of the epithelium d. type I collagen is the main type of collagen found in the cornea

Last Answer : type I collagen is the main type of collagen found in the cornea

With regard to the cornea: a. photokeratitis occurs with wavelength of 270nm b. microvilli are found in the outer layer of the epithelium c. the turnover of the corneal epithelium typically takes 30 days d. the corneal epithelium is about 10 layers in thickness

Description : With regard to the cornea: a. photokeratitis occurs with wavelength of 270nm b. microvilli are found in the outer layer of the epithelium c. the turnover of the corneal epithelium typically takes 30 days d. the corneal epithelium is about 10 layers in thickness

Last Answer : photokeratitis occurs with wavelength of 270nm

Sensitive pigmented layer of eye is (a) cornea (b) retina (c) sclerotic (d) iris.

Description : Sensitive pigmented layer of eye is (a) cornea (b) retina (c) sclerotic (d) iris.

Last Answer : (b) retina

Most of the thickness of cornea is formed by: a. Epithelial layer b. Substantia propria c. Descemet's membrane d. Endothelium

Description : Most of the thickness of cornea is formed by: a. Epithelial layer b. Substantia propria c. Descemet's membrane d. Endothelium

Last Answer : ANSWER: B  

Which cells of mucous layer of stomach secrete pepsinogen

Description : Which cells of mucous layer of stomach secrete pepsinogen

Last Answer : Which cells of mucous layer of stomach secrete pepsinogen A. Chief cell B. Goblet cell C. Parietal cel D. Oxyntic cell

The first line of host defense is the barrier presented to the external environment. Which of the following statement(s) is/are true concerning host barriers? a. Sebaceous glands secrete chemical compounds that maintain a relatively high pH, providing effective bacterial stasis b. Within the respiratory tract, ciliary function serves to extrude microorganisms trapped within the mucus secretion layer c. The low pH within the stomach markedly decreases bacterial content of the upper gastrointestinal tract d. Gut peristalsis serves to prevent microbial adherence and invasion

Description : The first line of host defense is the barrier presented to the external environment. Which of the following statement(s) is/are true concerning host barriers? a. Sebaceous glands secrete ... of the upper gastrointestinal tract d. Gut peristalsis serves to prevent microbial adherence and invasion

Last Answer : Answer: b, c, d The skin, mucus membranes, and epithelial layers of various organs of the body constitute effective physical barriers against microbial invasion. In certain portions of the ... very low pH within the stomach and gut peristalsis both serve to prevent microbial adherence and invasion

The layer of cells that secrete enamel of tooth is (a) osteoblast (b) odontoblast (c) dentoblast (d) ameloblast.

Description : The layer of cells that secrete enamel of tooth is (a) osteoblast (b) odontoblast (c) dentoblast (d) ameloblast.

Last Answer : (b) odontoblast

What are the hormones secreted by Pituitary gland? -Biology

Description : What are the hormones secreted by Pituitary gland? -Biology

Last Answer : answer:

What are the hormones secreted by Adrenal gland (Adrenal cortex, Adrenal medulla)? What are the chief functions of these hormones. -Biology

Description : What are the hormones secreted by Adrenal gland (Adrenal cortex, Adrenal medulla)? What are the chief functions of these hormones. -Biology

Last Answer : answer:

Which hormone is secreted by the thyroid gland ?

Last Answer : Thyroxine hormone is secreted from the thyroid

What is the name of the juice secreted from thyroid gland ?

Last Answer : : Thyroxine is the name of the fluid secreted from the thyroid gland.