A child is mentally retarded with defective teeth and loose wrinkled skin. a) From which disease is the child suffering? b) What is the disease due to?

1 Answer

Answer :

The child is suffering from cretinism. The disease is caused in children due to improper functioning of thyroid gland.

Related questions

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.

Description : Give reason: Person suffering from diabetes incipidus pass large quantity of dilute urine.

Last Answer : Since reabsorption of water in the kidneys has decreased

Description : Which of the following is not characteristic of the mentally retarded child? Options: A) He is generally above average in sensor motor and artistic aptitude B) He tends to display socially ... retarded in his physical development D) He is relatively lacking in ability to abstract and generalize

Last Answer : A) He is generally above average in sensor motor and artistic aptitude 

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.

Description : Can an animal be born mentally retarded?

Last Answer : answer:I did wonder about our beagle, Larchmont Jeffrey. He used to howl a lot and escape our little property when the moon was full and wander about. He had a tag on his collar that said, If you find ... house, until my mother finally sent Jeff to a nice family in the country. I loved that dog.

Description : What is the policy regarding college admission for the mentally retarded?

Last Answer : He might have had a disorder like Asperger Syndrome or something, in which he is less socially capable, but just as academically capable. But as for increasing diversity, this is a tough one. ... , learn the material, and satisfy a reasonable standard, then they are wasting their money on tuition.

Description : where can i get sports training to train mentally retarded children.Also i want to train the teachers who are involved with the mentally retarded. ?

Last Answer : Contact teacher colleges in your areas and speak to a counselor in the Special Education area. Also, check with Kinesiology or Exercise Science programs. A teacher training program likely requires certifications in the area as well as an advanced degree.

Description : A mentally retarded student attends your lecture and sit in a deaf and dumb manner. What will you do? Options: A) Make your lecture very simple and spare some extra time for him. B) You do not like ... individual. C) You pressurized the student to leave the class. D) You do not support him at all.

Last Answer : A) Make your lecture very simple and spare some extra time for him. 

Description : A student who is mentally retarded, cannot follow your lecture and sit in a deaf and dumb manner, when you recognise him, what will you do? Options: A) Make your lecture very simple and spare some extra ... ) You attempt in such a manner that he leaves your class D) You do not support him at all

Last Answer : A) Make your lecture very simple and spare some extra time for him 

Description : Why is goitre called ‘endemic disease’?

Last Answer : Goitre is a localised disease and found in areas where iodine is less in soil and water. Hence goitre is referred to as endemic disease.

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.

Description : What is hypothyroidism? Mention the abnormalities caused due to it.

Last Answer : Hypothyroidism is a condition in which the thyroid gland fails to produce enough thyroxin to meet the normal requirements of the body. Hypothyroidism leads to simple goitre, myxoedema and cretinism.

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)

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

Last Answer : Islets of Langerhans.

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.

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.

Description : What is cataract?

Last Answer : Cataract is a disorder of the eye in which the lens of the eye becomes cloudy, causing partial or total blindness.

Description : What is Presbyopia?

Last Answer : Presbyopia is a defect in which a person can see neither near-by nor far off objects clearly. It occurs at old age due to the loss of elasticity of eye lens.

Description : Give reason: A convex lens is used to correct hypermetropia.

Last Answer : In a hypermetropic eye, light is focused behind the retina. A convex lens will force it to form on the retina. Hence a convex lens is used to correct hypermetropia.

Description : What is hyper-metropia? How can it be corrected?

Last Answer : Hyper-metropia is a defect in which a person can see far off objects clearly but cannot see the near-by objects clearly. It is caused due to the flattening of eye ball. It can be corrected by using convex lens.

Description : Give reason: A concave lens is used to correct myopia.

Last Answer : In a myopic eye light falls too short from the retina. A concave lens forces light to fall on the retina. Hence concave lens is used to correct myopia.

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

Last Answer : Myopia is a defect of the eye in which the person can see near by objects but cannot see far off objects clearly. It is caused due to the bulging of the eye ball or elongation of the eye ball. It can be corrected by using concave lens.

Description : Mention the common defects of the eye.

Last Answer : a) Myopic or short sight b) Hyper-metropia or long sight c) Presbyopia d) Nyctolopia or night blindness e) Cataract

Description : Give reason: a) When we suddenly enter a cinema hall, we will not be able to see any objects.b) There is no image formation at blind spot.

Last Answer : a) When we suddenly enter a cinema hall, we will not be able to see any objects. Our eyes take some time to adjust to the light in the surroundings. When we are in bright area pupil constricts. ... region where the optic nerve exits the eye ball. There are no sensory cells. Hence no image is formed.

Description : What is meant by accommodation of the eye?

Last Answer : The ability of the eye lens to see both near by and far away objects clearly is called accommodation of the eye.

Description : How is the human eye able to adjust to near and far objects?

Last Answer : The human eye is able to adjust to near and far objects by altering the focal length of the lens. When we see a near by object, the muscles around the lens contract which increase the convexity ... we see a distant object, the muscles around the lens relax which decreases the convexity of the lens.

Description : Explain the functioning of the eye.

Last Answer : a) The light ray reflected from the object are focussed on the retina to from the image on the retina b) The receptor cells in the region are stimulated by photochemical reactions. c) The ... visual centre in the cerebrum. d) The impulses are interpreted in the cerebrum, resulting in vision.

Description : What are these? a) Sclera:

Last Answer : a) Sclera: It is the outermost layer of the eye b) Cornea: The bulged transparent front portion of the sclera. It allows light to enter the eyeball. c) Conjunctiva: It is a thin membrane that ... optic nerve exits the eye ball where no image is formed. Rods and cones are absent in this region.

Description : Which are the two fluids present in the eyeball? Mention their functions.

Last Answer : The area between the cornea and the lens is filled with a fluid called aqueous humour. The space between the cornea and the lens is filled with a thick fluid called vitreous humour. The fluids help in refraction of light rays and maintain the shape of the eye ball.

Description : Give reason: Choroid is thick and rich with blood vessels

Last Answer : Choroid has a layer of blood vessels which nourishes the back of the eye.

Description : Describe the structure of eye.

Last Answer : a) The wall of the eye is made up of three layers namely outer sclera, the middle choroid and the inner retina. b) The sclerotic layer has a bulged, transparent portion called cornea. ... thick fluid called vitreous humour. g) The inner retina layer contains receptor cells called rods and cones.

Description : What are lacrymal glands or tear glands?

Last Answer : Lacrymal glands are the glands present in the outer region of the upper eye lid. It produces secretions that keeps the surface of the eyes moist and wash out dust when we blink.

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.

Description : What are sense organs? Name them.

Last Answer : The organs through which we sense the objects in our environment are known as sense organs. The five sense organs are eyes, ears, nose, tongue and skin.