Name the hormone secreted by testis. State its function.

Name the hormone secreted by testis. State its function.
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1 Answer

Answer :

Testis secretes the male sex hormone called androgen. The most common hormone is testosterone. The function of testosterone is to help in the appearance of masculine characteristics at puberty.
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Related questions

Name the hormone secreted by ovaries. State its function.

Description : Name the hormone secreted by ovaries. State its function.

Last Answer : The ovaries secrete female sex hormones called estrogens. The function of estrogen is to help in the appearance of feminine characteristics at puberty.

Where are parathyroid glands located? Mention the hormone secreted. Mention the disorder caused due to its under secretion and over secretion. State its function.

Description : Where are parathyroid glands located? Mention the hormone secreted. Mention the disorder caused due to its under secretion and over secretion. State its function.

Last Answer : Parathyroid glands are embedded in the tissues of thyroid gland. Parathyroid gland secreted a hormone called parathormone. The function of parathormone is to control the amount of calcium salts in ... cramps. Over secretion of parathormone removes calcium from the bones making them soft and spongy.

Name the hormone secreted by the adrenal cortex. Mention its function.

Description : Name the hormone secreted by the adrenal cortex. Mention its function.

Last Answer : One of the important hormones secreted by adrenal cortex is cortisone. It regulates the rate of metabolism and the concentration of salts in the blood.

Where is thyroid gland located? Name the hormone secreted.

Description : Where is thyroid gland located? Name the hormone secreted.

Last Answer : Thyroid gland is located close to the throat region, below the pharynx in front of the trachea. Thyroid gland secretes a hormone called thyroxin.

Mention the hormones secreted by islets of Langerhans. State their function.

Description : Mention the hormones secreted by islets of Langerhans. State their function.

Last Answer : The hormones secreted by islets of Langerhans are insulin and glucagon. The functions are: Insulin promotes the conversion of glucose to glycogen for storage in liver and muscles. It is secreted ... the conversion of glycogen into glucose. It is secreted when blood glucose levels are low.

Mention the hormones secreted by adrenal medulla.

Description : Mention the hormones secreted by adrenal medulla.

Last Answer : Adrenal medulla secretes three hormones adrenaline, nor-adrenaline and dopamine.

Assume that you are attacked by robbers as you walk alone. At the moment you start running at a great speed. Which hormone produced in the body is responsible for getting that speed?

Description : Assume that you are attacked by robbers as you walk alone. At the moment you start running at a great speed. Which hormone produced in the body is responsible for getting that speed?

Last Answer : Adrenaline

Why is adrenaline also called fright, fight and flight hormone?

Description : Why is adrenaline also called fright, fight and flight hormone?

Last Answer : Adrenaline is secreted in excess and prepares the body to face the emergency situations. It helps us to overcome fright (fear), fight or run away (flight). Hence it is called fright, fight or flight hormone.

Why is adrenaline referred to as ‘emergency hormone’?

Description : Why is adrenaline referred to as ‘emergency hormone’?

Last Answer : Adrenaline prepares the body to face emergency and brings co-ordination of several events like increased heart beat, rate of respiration, dilation of pupil and other parts of the body. Hence adrenaline is referred to as emergency hormone.

Why is thyroxin referred to as ‘Personality hormone’?

Description : Why is thyroxin referred to as ‘Personality hormone’?

Last Answer : Thyroxin indirectly affects the growth and development of body. Hence it is called personality hormone.

Why is oxytocin call ‘Birth hormone’?

Description : Why is oxytocin call ‘Birth hormone’?

Last Answer : Oxytocin stimulates the constriction of uterus muscles during child birth and ejection of milk form mammary glands. Hence it is referred to as Birth hormone.

Why is pituitary hormone referred to as ‘growth hormone’?

Description : Why is pituitary hormone referred to as ‘growth hormone’?

Last Answer : Somato Trophic Hormone which is secreted by pituitary gland regulates both physical and mental growth. Hence it is called as growth hormone.

Which hormone is called growth hormone?

Description : Which hormone is called growth hormone?

Last Answer : Somato Trophic Hormone is called growth hormone.

What are these? State their function a) Pinna

Description : What are these? State their function a) Pinna

Last Answer : a) Pinna: It is a cartilagenous organ covered with skin. It collects sound waves and directs them into the auditory canal. b) Tympanum: It is an obliquely placed membrane at the end of ... called Cochlea. It also contains a delicate structure called organ of corti which forms the auditory nerve.

How are the eyes protected? OR Name the accessory parts of the human eye. State their function.

Description : How are the eyes protected? OR Name the accessory parts of the human eye. State their function.

Last Answer : The four accessory parts of human eye are eye brows, eye lid, eye lashes and lacrymal glands. a) The eye brows protect the eye from small particles that fall from above the eye and provide ... The lacrymal gland produces tears which keep the surface of the eyes moist and wash the dust particles.

State the function of autonomic nervous system.

Description : State the function of autonomic nervous system.

Last Answer : The function of autonomic nervous system is to regulate the involuntary actions of the body

State the function of spinal cord.

Description : State the function of spinal cord.

Last Answer : Spinal cord co-ordinates the movements of limbs and organs in the body by reflex action.

State the function of hypothalamus.

Description : State the function of hypothalamus.

Last Answer : a) Hypothalamus regulates body temperature, water balance, appetite and sleep. b) It controls autonomic nervous system. c) It forms a part of the pituitary gland.

State the function of thalamus.

Description : State the function of thalamus.

Last Answer : The function of thalamus is to receive nerve impulse from the sense organs and send them to the upper region.

State the function of progesterone.

Description : State the function of progesterone.

Last Answer : Progesterone stimulates the changes in the uterus during menstrual cycle and pregnancy.

What is cerebellum? Write its function.

Description : What is cerebellum? Write its function.

Last Answer : Cerebellum is a small region located between pons and medulla oblongata. The functions of cerebellum are: a) It is responsible for the maintenance of equilibrium and posture of the body. b) It co-ordinates and controls the movement of muscles in actions like walking or running.

What structures enable the skin to function as a sense organ?

Description : What structures enable the skin to function as a sense organ?

Last Answer : Sensory receptors are distributed all over the skin which perceive the stimuli. Touch receptors are located near the surface of the skin. Pressure receptors and pain receptors are located deep inside the skin.

Give an example to show that sympathetic and para-sympathetic system work opposite in function.

Description : Give an example to show that sympathetic and para-sympathetic system work opposite in function.

Last Answer : Sympathetic system stimulates the pupil in the eye to dilate (open) where as parasympathetic system stimulates it to constrict (close).

What are pons? Write their function.

Description : What are pons? Write their function.

Last Answer : Pons form the middle part of the hind brain. It acts as a conducting medium carrying impulse from one hemisphere of cerebellum to the other. Out of the 12 pairs of cranial nerves that ... centres of mastication (chewing), facial expressions, and respiration. b) It forms the conducting pathway.

What is diabetes mellitus? What are its symptoms? How can it be controlled?

Description : What is diabetes mellitus? What are its symptoms? How can it be controlled?

Last Answer : Diabetes mellitus is a disorder or condition caused when sufficient insulin is not produced and the glucose level in blood increases which is excreted through urine. The symptoms of diabetes ... and thirst. Diabetes mellitus can be controlled by administering insulin injection of suitable doses.

What is hyperthyroidism? What are its symptoms?

Description : What is hyperthyroidism? What are its symptoms?

Last Answer : The disorder caused due to over secretion of thyroxin is called hyperthyroidism. The symptoms are high metabolic rate, protrusion of eye balls, high blood pressure, nervous tension, irritability, profuse sweating, weight loss and fatigue.

What is myxoedema? What are its symptoms?

Description : What is myxoedema? What are its symptoms?

Last Answer : Myxodedma is a disorder caused due to under secretion of thyroxin in adults. The symptoms are low metabolic rate, loss of mental and physical vigour, thickening of skin, low rate of heart beat.

What is cretinism? What are its symptoms?

Description : What is cretinism? What are its symptoms?

Last Answer : Cretinism is a disorder caused in children due to improper functioning of thyroid gland. The symptoms are stunted growth, retarded mental development, bow legs, defective teeth, protrusion of tongue and loose wrinkled skin.

What is simple goitre? What are its symptoms?

Description : What is simple goitre? What are its symptoms?

Last Answer : The disease caused due to deficiency of iodine in the food is called goitre. The symptoms of goitre are abnormal enlargement of thyroid gland in the neck region.

What is acromegaly? What are its symptoms?

Description : What is acromegaly? What are its symptoms?

Last Answer : The disease caused in adults due to over secretion of growth hormone is called acromegaly. The symptoms are disproportionate growth of bones particularly jaws, nose, hands and legs.

Where is pituitary gland located? Write its functions.

Description : Where is pituitary gland located? Write its functions.

Last Answer : Pituitary gland is a tiny gland situated at the base of the brain. The functions of pituitary gland are: 1) It influences the rate of both physical and mental growth of the body. 2) It controls ... gametes from gonads (ovary and testis) g) It stimulates the secretion of sex hormones by the gonads.

After relay race, Runner-A pours glucose powder into his mouth. Runner-B tastes the glucose slowly with the tip of his tongue. Whom do you think, experiences the sweetness most? Why?

Description : After relay race, Runner-A pours glucose powder into his mouth. Runner-B tastes the glucose slowly with the tip of his tongue. Whom do you think, experiences the sweetness most? Why?

Last Answer : Runner-B experiences most sweetness because the taste buds of sweetness are distributed in the front.

Briefly explain the mechanism of taste.

Description : Briefly explain the mechanism of taste.

Last Answer : Food that is eaten mixes with saliva and enters the pores of the taste buds. They chemically stimulate the sensory cells. These cells convert the chemical stimuli into electrical impulses. The electric impulses pass to the brain through the sensory neuron. The brain interprets the impulses as taste.

Explain the structure of tongue.

Description : Explain the structure of tongue.

Last Answer : The tongue is covered by a mucus membrane. It has numerous tiny sensory cells called taste buds. Taste buds are composed of a cluster of cells with receptors lying in a small depression on the surface.

Explain how a pea or a button which has got into the nasal cavity be removed. OR What is the first aid to be provided to a person who got a pea or a button into the nasal cavity accidentally?

Description : Explain how a pea or a button which has got into the nasal cavity be removed. OR What is the first aid to be provided to a person who got a pea or a button into the nasal cavity accidentally?

Last Answer : If a pea or a button gets into the nasal cavity accidentally, give a pinch of snuff to the person. It causes violent sneezing and the foreign body will be thrown out. Visit a doctor if the above method does not work.

Why does food appear relatively tasteless when one has cold or running nose?

Description : Why does food appear relatively tasteless when one has cold or running nose?

Last Answer : When you put food in your mouth, odour molecules from that food travel through the enter nose and stimulate the olfactory receptor cells at the top of your nasal cavity, If mucus in your ... receptor cells. Thus, the brain receives no signal identifying the odour Hence food eaten appears tasteless.

Briefly explain the sensation of smell.

Description : Briefly explain the sensation of smell.

Last Answer : The molecules from the substance escapes and are carried by the inhaled air. On reaching the olfactory epithelium, they get dissolved in the mucus and stimulate the receptors. The stimulations are ... olfactory nerve to the brain. Here it interprets the impulses and gives the sensation of smell.

Briefly explain the structure of the human nose.

Description : Briefly explain the structure of the human nose.

Last Answer : The nasal cavity is lined by olfactory epithelium. The upper part of the nasal cavity has receptors of smell. The receptors are connected with the olfactory nerve. The olfactory nerve carries the impulses to the brain.

Give reason: a) A strong blow on the ears is very dangerous.b) When there is severe throat infection we normally get ear pain.

Description : Give reason: a) A strong blow on the ears is very dangerous.b) When there is severe throat infection we normally get ear pain.

Last Answer : a) A strong blow on the ears is very dangerous.As it would damage the semicircular canals and cochlea. This would lead to leakage of of fluids and sometimes even death, with ear ... pain. Throat infections affect the middle ear because eustachian tubes connect the middle ears and the throat.

What are the cares to be taken of the ear?

Description : What are the cares to be taken of the ear?

Last Answer : a) Hardened wax from the auditory canal should not be removed using sharp objects as they damage the eardrum. b) Loud noise must be avoided as they damage the eardrum. c) Visit a doctor if ... hearing. e) Small insects entering the ear can be removed by filling the external ear with salt water.

How is the ear protected?

Description : How is the ear protected?

Last Answer : a) The auditory canal has hairs at its opening to prevent tiny particles from entering the ear. b) The wax secreting cells on the inner lining of the auditory canal produces wax that traps small organisms and dust.

a) What is organ of corti? b) Name the liquids that are present in inner ear.

Description : a) What is organ of corti? b) Name the liquids that are present in inner ear.

Last Answer : a) Cochlea has delicate structures called organ of corti, which have receptors that join to form the auditory nerve. b) The entire ear is filled with a fluid called endolymph. The inner ear is surrounded by a fluid called perilymph.

Describe the structure of the human ear.

Description : Describe the structure of the human ear.

Last Answer : a) The human ear is divided into three parts namely the outer ear, the middle ear and the inner ear. b) The outer ear consists of pinna, auditory canal and the tympanum. c) Pinna is ... Cochlea has delicate structures called organ of corti, which have receptors that join to form the auditory nerve.

What are the precautions to be taken regarding the care of the eyes?

Description : What are the precautions to be taken regarding the care of the eyes?

Last Answer : a) Do not strain your eyes by reading in dim light b) Avoid reading books during journey on roads. c) Avoid very bright light. d) Avoid watching television from a short distance. e) Avoid working on ... with cold clean water atleast twice a day. g) Consult an eye specialist in case of any problem.

A person is not able to identify the colours in the traffic signal. What disease is he suffering from?

Description : A person is not able to identify the colours in the traffic signal. What disease is he suffering from?

Last Answer : The disease is called colour blindness. It is a genetic disorder in which a person is unable to differentiate colours.

What is Glaucoma?

Description : What is Glaucoma?

Last Answer : Glaucoma is a disorder of the eye. The eyeball of a person suffering from glaucoma gradually hardens. The person sees flashes of light and coloured rings around the objects. The vision gradually decreases and leads to blindness. It occurs in persons above forty years of age.

What is astigmatism? How can it be corrected?

Description : What is astigmatism? How can it be corrected?

Last Answer : Astigmatism is a defect in which, a person looking at horizontal or vertical lines appears distorted. It is caused due to the unevenness of the crystalline lens. It can be corrected by using cylindrical lenses.

A person is advised vitrectomy surgery. Which gland which is not functioning properly?

Description : A person is advised vitrectomy surgery. Which gland which is not functioning properly?

Last Answer : Islets of Langerhans.

What is vitrectomy?

Description : What is vitrectomy?

Last Answer : Vitrectomy is a major surgical procedure to treat diabetic retinopathy. In this procedure the blood that has leaked into the vitreous humour is removed and vision is restored.

What is diabetic retinopathy? How can it be prevented?

Description : What is diabetic retinopathy? How can it be prevented?

Last Answer : Diabetic retinopathy is a disorder of the eye that occurs in people suffering from diabetes. After many years of diabetes, the blood vessels of the retina may leak, close-up or begin to grow. ... enter the vitreous humour making it opaque. It can be prevented by early treatment with laser beam.