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1.

The kind of tissue that forms the supportive structure in our pinna (external sears) is also found inA. VertebraeB. NailsC. Ear ossiclesD. Tip of the nose

Answer» Correct Answer - D
2.

Photosensitive compound in human eye is made up ofA. opsin and retinalB. opsin and retinolC. transducin and retineneD. guanosine and retinol

Answer» Correct Answer - A
3.

The pneumotaxic centre and rhythm centre are respectively present inA. pons and medulla oblongataB. corpus callosum and ponsC. medulla oblongata and hypothalamusD. diencephalon and pons

Answer» Correct Answer - A
4.

Which function will be lost due to damage of occipital lobe ?A. HearingB. SpeechC. VisionD. Memory

Answer» Correct Answer - C
5.

Which centre is stimulated during increase in body temperature ?A. Anterior hypothalamusB. Posterior hypothalamusC. Limbic systemD. Red nucleus

Answer» Correct Answer - A
6.

Which part of the eye controls the amount of light entering in it or The black pigment in the eye which reduces the internal reflection is located inA. CorneaB. Ciliary bodyC. IrisD. Suspensory ligament

Answer» Correct Answer - c
Iris is a pigmented disc like part which is foundbetween comes and lens. Iris consist of circulr spincter and radial dilators muscles which controls the light entering into the eye.
7.

The black pigment in the eye, which reduces the internal reflection, is located inA. PupilB. CorneaC. ScleroticD. Choroid

Answer» Correct Answer - D
8.

Pacinian corpuscles areA. glandsB. pain receptorsC. naked tactile receptorsD. encapsulated pressure receptors

Answer» Correct Answer - D
9.

The pacinian corpuscle present in the skin is forA. PainB. PressureC. MovementD. Temperature

Answer» Correct Answer - B
Pacinian corpuscles we factile receptors occur in deeper layer of skin in neck, arms, nipples, external genital, palms and soles. These receive stimulus of strong pressure and vibration of sustanined contacts.
10.

Colour pereception in human is due toA. Rhodopsin pigment in rod cellsB. Rhodopsin pigment in cone cellsC. Iodopsin pigment in rod cellsD. Iodopsin pigment in cone cells

Answer» Correct Answer - D
Colour perception in humans is due to iodopsin pigment in cone cells.
11.

Iodopsin is a light sensitive (photosensitive) pigment and is present in theA. RodsB. ConesC. NeurogliaD. Bipolar cells

Answer» Correct Answer - b
Iodospin is photosensitive visual pigment found in cones of retina.
12.

In the following abnormalities of the eye which one is a serious condition that leads to blindnessA. PresbyopiaB. MyopiaC. HypermetropiaD. Glaucoma

Answer» Correct Answer - D
In glaucoma, there is over production of vitreous humour which increases the pressure in the eye and this crushes the delicate cells of the retine, causing bilindness.
13.

Acoustic spots in frog is present inA. Ossious labyrinthB. CarotidC. Membranous labyrinthD. All of these

Answer» Correct Answer - c
Acoustic spots occur in the amullae of semicircular ducts of internal ear or the membranous labyrinth. The wall of the membranous labyrinth of frog is lined with cubical epithelial cells. The epithelial liring. At certain places, is modified to form sensory pathces called acoustic spots. There exist one in the utriculus, one is the sacculus, and one in the legnes. The sensory paths of ampulae are called cristae, while the otehr one are known as maculae.
14.

In the chemistry of vision in mammals, the photosensitive substance is called or The visual pigment in rods of retina of vertebrate eye which is responsible for detection of light is or It is present in rods and useful in night visionA. SelerotieB. RetinolC. RhodopsinD. Melanin

Answer» Correct Answer - C
Rhodopsin is a visual purple pigment (formed by vitamin A and opsin protein) sensitive to dimlight. It helps in twilight vision during night.
15.

Cornea transplant in humans is almost never rejected.This is becauseA. Its technique is very simpleB. The preservation of cornea is very simpleC. Cornea has no relation with blood circulation and immunizationD. Cornea is available easily

Answer» Correct Answer - C
16.

Nissi bodies are mainly composed ofA. Free ribosomes and RERB. Nucleic acids and SERC. DNA and RNAD. Proteins and lipids

Answer» Correct Answer - A
17.

It converts short term memory into long term remembrance.A. Reticular systemB. ThalamusC. Medulla oblongataD. Hippocampus

Answer» Correct Answer - D
Hippocampus converts short term memory into long term remembrance.
18.

The transparent lens in the human eye is held in its place byA. Smooth muscles attached to the ciliary bodyB. Smooth muscles attached to the irisC. Ligaments attached to the irisD. Ligaments attached to the ciliary body

Answer» Correct Answer - C
19.

The eye ball has a transparent crystalline lens which is held in place byA. Ligaments attached to the irisB. Tendons attached to the irisC. Ligaments attached to the ciliatry bodyD. Tendons attached to the ciliatry body

Answer» Correct Answer - C
The eye ball has a transparent crystalline lens which is held in place by ligaments attached to the ciliary body.
20.

Man can see objects equally clear from various distances due toA. corneaB. conjunctivaC. eyelidD. ciliary muscles

Answer» Correct Answer - D
21.

The transparent lens in the human eye is held in its place byA. ligaments attached to the ciliary bodyB. ligaments attached to the irisC. smooth muscles attached to the irisD. smooth muscles attached to the ciliary body

Answer» Correct Answer - A
The transparent lens in the human eye is held in its place by ligaments attached to the ciliary body.
22.

Nerve gas affects neuromuscular activity byA. Enhancing release of acetylocholineB. Inhibiting acetylcholinesteraseC. Inhibiting release of acetylcholineD. Blocking acetylcholine receptors

Answer» Correct Answer - B
Nerve gas affects neuromuscular working by inhibiting release of acetylcholine.
23.

The reflex arc which is made of two neurons is known asA. Monosynaptic reflex arcB. Disynaptic reflex arcC. Polysynaptic reflex arcD. Asnaptic reflex arc

Answer» Correct Answer - a
24.

The reflex arc which is made of two neurons is known asA. monosynaptic reflex arcB. disynaptic reflex arcC. polysynaptic reflex arcD. asynaptic reflex arc

Answer» Correct Answer - A
Reflex arc is the arrangement of neurons in the pathway that always passes through central nervous system. The axon of one neuron ends on the dendrites of next neuron. Such a junction is called synapse. Monosynaptic reflex arc has only two neurons, i.e. sensory and motor which forms one synapse.
25.

Which one of the following cranial nerves is not a mixed nerves?A. Abducens nerveB. Glossopharyngeal nerveC. Trigeminal nerveD. Vagus nerve

Answer» Correct Answer - A
26.

The reflex arc which is made of two neurons is known asA. AsynapticB. MonosynapticC. DisynapticD. Polysynaptic

Answer» Correct Answer - B
Reflex arc made of two neurons is monosynaptic.
27.

Which of the following cranial nerves are mixed ? 1. Vagus 2. Trigeminal 3. Glassopharyngeal 4. AuditoryA. 1 & 2 are correctB. 2 & 4 are correctC. 1 & 3 are correctD. 1, 2 & 3 are correct

Answer» Correct Answer - D
28.

How many pairs of cranial nerves are mixed nerves ?A. 3B. 5C. 4D. 6

Answer» Correct Answer - C
4 pairs of cranial nerves are mixed nerves. These are trigeminal, facial, glossopharyngeal and vagus nerves.
29.

Hypoglossal nerve controls the movements ofA. TongueB. HeartC. EyeD. Ear

Answer» Correct Answer - A
Hypogloassal nerve controls movement of tongue.
30.

Which of the following nerves are of mixed nature? I. Trigeminal II. Hypoglossal III. Glossopharyngeal IV. AbducensA. I and IIIB. II and IVC. III and IVD. None of these

Answer» Correct Answer - A
31.

If a person has lost his memory in an accident, the following part of the brain have got injuredA. DiencephalonB. Medulla oblongataC. CerebellumD. Cerebrum

Answer» Correct Answer - d
A mammal, from whose brain cerebrum is removed loses all responses that depend upon consciousness and memoery.
32.

Which of the following regions of the brain is incorrectly paired with its function ?A. Cerebellum - language comprehensionB. Corpus callosum - communication between the left and right cerebral corticesC. Cerebrum - calculation and contemplationD. Medulla oblongata - homeostatic control

Answer» Correct Answer - A
33.

Which of the following regions of the brain is incorrectly paired with its functionA. Medulla oblongata - Homeostatic controlB. Cerebellum - Language comprehensionC. Corpus callosum - Communication between the left and right cerebral corticesD. Cerebrum - Calculation and contemplation

Answer» Correct Answer - B
Language comprehension includes understanding of speech and written words. It requires input of sensory information (from hearing and vision), processing of the information in different centres of cerebral cortex and the coordination of motor output language comprehension is a function performed by temporal lobe of cerebrum.
34.

Which of the following regions of the brain is incorrectly paired with its functionA. Cerebellum - Language comprehensionB. Corpus callosum - communication between the left and right cerebral corticesC. Medulla oblongata - homeostatic controlD. Cerebrum- Calculation and Contemplation

Answer» Correct Answer - A
Cerebellum is responsible for co-ordination of body movements.
35.

The hind brain consists ofA. Pons + cerebellumB. Hypothalamus + cerebellumC. Medulla oblongata + cerebellumD. Medulla oblongata + cerebellum + pons

Answer» Correct Answer - D
Hind brain has two distinct part (i) metencephalon (medulla oblongata). (ii) myelencephalon (cerebellum). Transverse band of white matter called pons varoli.
36.

One of the examples of the action of the autonomous neural system isA. swallowing of foodB. pupillary reflexC. peristalsis of the intestineD. all of these

Answer» Correct Answer - D
Autonomous neural system controls and coordinates the involuntary activites of various organs. It regulates involuntary activities of the body , i.e., activities which are not under the will power of the animal, e.g. , swallowing of food, pupillary reflex, peristalsis of the intestine, etc.
37.

Hypoglossal nerve controls the movements ofA. earB. heartC. tongueD. limbs

Answer» Correct Answer - C
Hypoglossal nerve is a motor nerve that controls the movements of the tongue.
38.

The hind brain consists ofA. Pons + cerebellumB. Hypothalamus + cerebellumC. Medulla oblongata + cerebellum + ponsD.

Answer» Correct Answer - d
Hind brain has two distinct part (i) metencephalon (medulla oblongata). (ii) myelencephalon (cerebellum). Transverse band of white matter called pons varoli.
39.

Which of the following regions of the brain is incorrectly paired with its functionA. Cerebellum - Language comprehensionB. Corpus callosum - communication between the left and right cerebral corticesC. Cerebrum - Calculation and ContemplationD. Medulla oblongata - homeostatic control

Answer» Correct Answer - a
Cerebellum is responsible for co-ordination of body movements.
40.

In a human being, the number of spinal nerves isA. 31 pairsB. 52 pairsC. 12 pairsD. 36 pairs

Answer» Correct Answer - A
There are 31 pairs of spinal nerves. These are named and numbered according to the vertebrae with which they are associated.They include 8 pairs of cervical nerves, 12 pairs of thoracic nerves, 5 pairs of lumbar nerves, 5 pairs of sacral nerves and 1 pair of coccygeal nerves .
41.

The part of the ear where sound is transduced isA. tympanic membraneB. ear ossiclesC. semicircular canalsD. cochlea

Answer» Correct Answer - D
Cochlea is the main hearing organ.The transformation of the vibration into nerve impulse for relay to the brain takes place here.
42.

The sequence of ear ossicles starting from the ear drum is Or gt What is the right sequence of bones in the ear ossicles of a mammal starting from the tympanum inwards OR The sequence of ossicles starting from outside to insideA. Malleus, incus, stapesB. Incus, malleus, stapesC. Malleus, stapes, incusD. Stapes, incus , malleus

Answer» Correct Answer - a
43.

Sensory functions which are considered for ear are

Answer» Correct Answer - hearing & maintenance of body
44.

The three tiny bones present in middle ear are called ear ossicles. Write them in correct sequence beginning from ear drum.

Answer» Correct Answer - Malleus, incus and stapes
45.

Which of the following bones is in direct contact with oval window ?

Answer» Correct Answer - Stapes
46.

A person going upto `10,000` feet high in a hot air ballon may develop severe pain in the ear due toA. Blocked eustachian tubeB. Rupture of fenestra rotundaC. Endolymph getting into semicircular canalsD. Fear of great height

Answer» Correct Answer - b
47.

Tube that connects the middle ear cavity with the pharynx is called

Answer» Correct Answer - Eustachian tube
48.

The sense of equilibrium by ear is the funciton ofA. Sensory cells of the organ of cortiB. Sensory crista of the ampullaC. Tetorial crista of the ampullaD. Basilar membrane of cochlea

Answer» Correct Answer - b
49.

Canal joining middle ear with buccal cavity isA. Inguinal canalB. Eustachian canalC. Haversian canalD. Aquaduct of Sylvius

Answer» Correct Answer - b
50.

Which of the following structure is not filled with endolymph ?A. UtriculusB. Tympanic cavityC. SacculusD. Semicircular canal

Answer» Correct Answer - B