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
C.
Trigeminal and facial
D.
Glossopharyngeal and vagus
Mixed nerves contain both sensory and motor fibres
| Name | Composition | Functions |
| Glossopharyngeal (IX) | Motor and sensory (mixed) | It serves the pharynx for swallowing. |
| Vagus | Mixed | Sensations from visceral (internal) organs and parasympathetic motor regulation of visceral organs |
| Hypoglossal | Motor | Serves muscles of the tongue |
| Trigeminal | Mixed | Sensory from face and mouth; motor to muscles of mastication |
| Facial | Mixed | Serves the muscles of facial expression, lacrimal glands and salivary glands |
| Abducens | Motor | Serves the lateral rectus eye muscle |
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
