Question:
The number of cranial nerves in frog and man is:
The number of cranial nerves in frog and man is:
Updated On: Aug 1, 2022
- 10 and 12
- 12 and 10
- 10 and 8
- 8 and 10
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The Correct Option is A
Solution and Explanation
Frog contains $10$ pairs of cranial nerves. These are:
(i) Olfactory
(ii) Optic
(iii) Occulomotor
(iv) Trochlear
(v) Trigeminal
(vi) Abducens
(vii) Facial
(viii) Auditory
(ix) Glossopharyngeal
(x) Vagus
Rabbit contains $12$ pairs of cranial nerves i.e., $2$ pairs extra, these extra cranial nerves are:
(xi) Spinal accessory
(xii) Hypoglossal
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Concepts Used:
Nervous System
The nervous system, often known as the neural system, is a sophisticated network of neurons dedicated to the transmission of messages. As we progress up the food chain, the neurological system becomes more sophisticated.
Functions of Nervous System:
The nervous system's most basic job is to govern the organism's movement and to influence the environment (e.g., through pheromones). This is accomplished by transmitting signals from one cell to another, or from one body component to another. Signals that travel to muscle cells cause muscles to contract, and signals that travel to endocrine cells cause hormones to be released into the circulation or other internal fluids to cause the nervous system's output.