Description : Answer: b, c, d Eosinophils constitute 1% to 3% of the leukocyte population of the bloodstream. They also reside in tissues and they exhibit phagocytic capabilities. They are less ... the cycle of events that result in recruitment and activation of inflammatory cells at sites of inflammation
Last Answer : Cellular injury from oxidants may be manifest by which of the following? a. Cell membrane lipid peroxidation b. DNA strand breaks c. Cytoskeletal disassembly d. ATP depletion
Description : During which step of cellular carcinogenesis do cellular changes exhibit increased malignant behavior? a) Progression During this third step, cells show a propensity to invade adjacent tissues and ... of cellular DNA. d) Prolongation No stage of cellular carcinogenesis is termed prolongation.
Last Answer : a) Progression During this third step, cells show a propensity to invade adjacent tissues and metastasize.
Description : Cells of the human body exhibit three main types of movements _____,_____ and ______.
Last Answer : Cells of the human body exhibit three main types of movements _____,_____ and ______.
Description : Explain the statement 'Tissues exhibit division of labour'. Give examples. OR Q: What is the utility of tissues in multicellular organisms?
Last Answer : In multicellular organisms there are millions of cells. Each specialised function is taken up by a different group of cells called tissue. Or Group of cells, forming a tissue are capable of ... water from one part of the plant to other parts. So, multicellular organisms show division of labour
Description : Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions characteristics. (a) C-Aqueous chamber-Reflects the light which does not ... , i.e., rods and cones. (d) B - Blind spot-Has only a few rods and cones.
Last Answer : (c) A - Retina - Contains photoreceptors, i.e., rods and cones.
Description : The transparent lens in the human eye is held in its place by (a) ligaments attached to the ciliary body (b) ligaments attached to the iris (c) smooth muscles attached to the iris (d) smooth muscles attached to the ciliary body
Last Answer : (a) ligaments attached to the ciliary body
Description : The transparent lens in the human eye is held in its place by (1) ligaments attached to the ciliary body (2) ligaments attached to the iris (3) smooth muscles attached to the iris (4) smooth muscles attached to the ciliary body
Last Answer : (1) ligaments attached to the ciliary body
Description : Agonistic action on which of the following adrenergic receptors located on ciliary epithelial cells reduces aqueous secretion: A. β1 receptor B. β2 receptor C. α1 receptor D. α2 receptor
Last Answer : D. α2 receptor
Description : During accommodation: a. the distance between the lens and the ciliary body is decreased b. the tension in the suspensory ligament is increased c. the tension of the lens capsule is increased d. the refractive power of the lens is increased
Last Answer : the refractive power of the lens is increased
Description : The light reflex involves the following structures: a. Edinger-Westphal nucleus b. ciliary ganglion c. lateral geniculate body d. oculomotor nerve
Last Answer : Edinger-Westphal nucleus
Description : The following are true about tight junction: a. it forms a barrier to water b. it is found in the blood-aqueous barrier of the ciliary body c. it is found in the blood-retinal barrier at the apex of the retinal pigment epithelium d. all above
Last Answer : all above
Description : Beta adrenergic blockers lower intraocular tension by: A. Down regulating adenylyl cyclase in ciliary body through reduced activation of β2 adrenoceptors B. Constricting ciliary blood vessels ... action on trabecular meshwork D. Reducing aqueous formation unrelated to beta adrenoceptor mediation
Last Answer : A. Down regulating adenylyl cyclase in ciliary body through reduced activation of β2 adrenoceptors
Description : The site of action of miotics for therapeutic effect in angle closure glaucoma is: A. Canal of Schlemm B. Ciliary body C. Ciliary muscle D. Sphincter pupillae muscle
Last Answer : D. Sphincter pupillae muscle
Description : Aqueous humour is formed by: a. Epithelium of ciliary body b. Posterior surface of iris c. Lens d. Pars plana
Last Answer : ANSWER: A
Description : the goal of _______ is to use cells and tissues to treat human illnesses or injuries. -General Knowledge
Last Answer : The goal of therapeutic cloning is to use cells and tissues to treat human illnesses or injuries.
Description : The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. ... Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly
Last Answer : (b) A : Alveolar cavity - Main site of exchange of respiratory gases
Description : Reconstitution of the epithelial barrier (epithelialization) begins within hours of the initial injury. Which of the following statement(s) is/are true concerning the process of epithelialization? a. ... d. Visible scarring can occur only when the injury extends deeper than the superficial dermis
Last Answer : Answer: a, d The initial step of epithelialization involves epithelial cells from the basal layer of the wound edge flattening and migrating across the wound, completing wound coverage within 24- ... abrasions and burns may scar significantly. Whenever the dermis is incised, a scar will form
Description : What disease occurs when there is an abnormal increase in the number of white blood cells which results in fewer red blood cells carrying oxygen to body tissues?
Last Answer : Leukemia
Description : Which option is correct about the levels of organization: D A. Molecules - atoms -cellstissues -organs-body-organismpopulation - community - ecosystem B. Atoms -molecules ... C. Molecules-Atoms-cells-organs-tissues-body-organismD. Atoms-molecules-cells-tissues-organs-body-organism
Last Answer : Atoms-molecules-cells-tissues-organs-body-organism
Description : Which option is correct about the levels of organization: D A. Molecules - atoms -cellstissues -organs-body-organismpopulation - community - ecosystem B. Atoms -molecules -tissues -cells-organs ... - ecosystem D. Atoms -molecules -cells - tissues-organs-body-organismpopulation -community - ecosystem
Last Answer : Atoms -molecules -tissues -cells-organs-body-organismcommunity -population -ecosystem
Description : Which one of the following is one of the paths followed by air or O2 during respiration in the adult male Periplaneta americana as it enters the animal body? (a) Spiracle in ... prothorax, tracheoles, trachea, oxygen diffuses into cells (d) Hypopharynx, mouth, pharynx, trachea, tissues
Last Answer : (a) Spiracle in metathorax, trachea, tracheoles, oxygen diffuses into cells
Description : A malignant tumor a) gains access to the blood and lymphatic channels. By this mechanism, the tumor metastasizes to other areas of the body. b) demonstrates cells that are well- ... malignant tumor grows at the periphery and sends out processes that infiltrate and destroy surrounding tissues.
Last Answer : a) gains access to the blood and lymphatic channels. By this mechanism, the tumor metastasizes to other areas of the body.
Description : How do the red blood cells carry oxygen to the tissues? -Biology
Last Answer : answer:
Description : When viewing an object near to your eyes the following are required for proper image formation of the retina ? (A) Contraction of the ciliary muscles
Last Answer : When viewing an object near to your eyes the following are required for proper image formation of the retina ? (A) ... and D C. B and D D. A and B
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
Description : Which of the following organs is innervated only by parasympathetic nerves ? (a) Iris muscles (b) Ciliary muscle (c) Sweat glands (d) Splenic capsule
Last Answer : Ans: B
Description : Common Name of Balantidiosis is A A. Ciliary dysentery B. A and B C. Amoebic dysentery D. None of these
Last Answer : Ciliary dysentery
Description : The following are true about pupil reaction to light: a. secretion of acetylcholine is responsible for pupil dilatation b. constriction of the pupil is mediated by nerve fibres travelling in ... fibres travelling in the long ciliary nerve d. the sympathetic nerve innervates the dilator muscles
Last Answer : the sympathetic nerve innervates the dilator muscles
Description : The following are true about pupillary reaction to light: a. it is impaired in damage of the Edinger-Westphal nucleus b. it is impaired in damage of the ciliary ganglion c. it is impaired in ... cervical ganglion d. the pupil does not respond to light with a frequency of greater than 5 H
Last Answer : the pupil does not respond to light with a frequency of greater than 5 H
Description : Stimulation of the cholinergic pathway results in: a. ciliary muscle contraction b. a decrease in atrial contractility c. gall bladder contraction d. all above
Description : Direct light reflex of the pupil is absent in: a. lesion of the ipsilateral ciliary ganglion. b. transaction of the ipsilateral optic nerve. c. bilateral occipital lobe lesion. d. topical application of phenylepherine.
Last Answer : lesion of the ipsilateral ciliary ganglion.
Description : The effects of topically applied anticholinesterase on the eye include: a. conjunctival hyperaemia b. raised intraocular pressure c. ciliary muscle contraction d. sphincter pupillae muscle relaxation e. retraction of the upper lids
Last Answer : ciliary muscle contraction
Description : During accommodation for near: a. the spherical aberration of the eye increases b. the ciliary muscle relaxes c. the field of vision decreases d. the amount of light entering the eye increases e. the thickness of the lens increases
Last Answer : the thickness of the lens increases
Description : The following structures are of ectodermal origin: a. the retina and its retinal pigment epithelium b. iris stroma c. the sclera d. the ciliary muscle e. the corneal stroma
Last Answer : the retina and its retinal pigment epithelium
Description : The ciliary ganglion: a. is found between the optic nerve and the medial rectus b. contains sympathetic nerve that supplies the sphincter pupillae c. is a parasympathetic relay ganglion for fibers from ... nucleus d. contains sensory nerve e. has a motor nerve that goes to the inferior oblique
Last Answer : is a parasympathetic relay ganglion for fibers from the Edinger-Westphal nucleus
Description : Radial symmetry is, usually, exhibited in animals which (a) are attached to the substratum (b) have one opening of alimentary canal (c) live in water (d) have ciliary mode of feeding.
Last Answer : (a) are attached to the substratum
Description : Which of the following categories of medications increases aqueous fluid outflow in the patient with glaucoma? a) Cholinergics Cholinergics increase aqueous fluid outflow by contracting ... production. d) Carbonic anhydrase inhibitors Carbonic anhydrase inhibitors decrease aqueous humor production.
Last Answer : a) Cholinergics Cholinergics increase aqueous fluid outflow by contracting the ciliary muscle, causing miosis, and opening the trabecular meshwork.
Description : Pilocarpine reduces intraocular tension in open angle glaucoma by: A. Contracting sphincter pupillae B. Increasing tone of ciliary muscle C. Reducing aqueous formation D. Enhancing uveo-scleral outflow
Last Answer : B. Increasing tone of ciliary muscle
Description : Which of the following organs is innervated only by parasympathetic nerves: A. Iris muscles B. Ciliary musclele C. Sweat glands D. Splenic capsu
Last Answer : B. Ciliary musclele
Description : Which of the following organs is innervated only by parasympathetic nerves: A. Iris muscles B. Ciliary muscle C. Sweat glands D. Splenic capsule
Last Answer : B. Ciliary muscle
Description : All the following are extraocular muscle of eye except: a. Superior rectus b. Ciliary muscle c. Inferior oblique d. Superior oblique
Last Answer : ANSWER: B
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
Description : Best site where intraocular lens is fitted: a. Capsular ligament b. Endosulcus c. Ciliary supported d. Capsular bag
Last Answer : ANSWER: D
Description : Ciliary injection is not seen in: a. Herpetic keratitis b. Bacterial ulcer c. Chronic iridocyclitis d. Catarrhal conjunctivitis e. Acute iridocyclitis
Description : The sure diagnostic sign of corneal ulcer is a. Ciliary injection b. Blepharospasm c. Miosis d. Positive fluorescein test.
Description : Dense scar of cornea with incarceration of iris is known as: a. Adherent Leucoma b. Dense leucoma c. Ciliary staphyloma d. Iris bombe