151.

Which of the following pairs of cranial nerves is/are of mixed category?

• Glossopharyngeal and hypogrossal

• Trigeminal and abducens

• Trigeminal and facial

• Glossopharyngeal and vagus

Myelin sheaths

• are abundant in nervous system of non- vertebrates

• consists largely of lipids

• has a low electric resistance

• allows the continous conduction of impulse

Pacinian corpuscles found in the skin are sensitive to

• touch

• pressure

• temperature (hot and cold)

• vibrations

Which of the following statement is true for maculae found in the internal ear of humans?

• It is present in ampullae of semicircular ducts

• These are three in number

• Each macula contains calcarious ear stones called oto lith.

• All of above

Myelin sheaths

• are abundant in the nervous system of non-vertebrates

• consists largely of lipids

• has a low electric resistance

• allow the continous conduction of impulse

Which of the following characteristic is not seen in a person suffering from schizoprenia?

• Auditory hallucinations

• Split personality

• False beliefs

• Lack of motivation

Utriculus of internal ear is

• lower chamber related with equilibrium

• lower chamber related with receiving sound waves

• upper chamber related with receiving sound waves

• upper chamber related with equilibrium

The most appropriate definition of neuroglial cells are

• non-sensory and supporting cells

• secretory cells

• sensory and supporting cells

• non-sensory supporting or secretory cells

Match the disease in column I with their characteristic symptoms in column II caused in brain.

Column I	Column II
A. Parkinson's disease	1. Refers to lack of muscle coordination. Damage to cerebellum is a characteritic symptom
B. Dyslexia	2. Refers to the destruction of myelin sheath of neuron of CNS
C. Alaxia	3. It is characterized by tremors and progressive rigidity of limbs caused by degeneration of neurons
D. Multiple sclerosis	4. Involves an inability of an individual to comprehend the written language

• A - 2; B - 4; C - 3; D - 1

• A - 3; B - 2; C - 1; D - 4

• A - 4; B - 3; C - 2; D - 3

• A - 3; B - 4; C - 1; D - 2

Match the parts of the human brain with their functions.

Column I	Column II
A. Cerebrum	1. Controls the pituitary
B. Cerebllum	2. Controls vision and hearing
C. Hypothalamus	3. Controls the rate of heart beat
D. Midbrain	4. Seat of intelligence 5. Maintains body posture

• A - 5; B - 4; C - 2; D - 1

• A - 4; B - 5; C - 2; D - 1

• A - 5; B - 4; C - 1; D - 2

• A - 4; B - 5; C - 1; D - 2