Cranial nerve V do not have somatic motor fibers that control the extra-ocular muscles. The extraocular muscles are innervated by three cranial nerves, oculomotor nerve , trochlear nerve, abducens nerve.
Trigeminal nerve is the fifth cranial nerve . Its primary function function is to provide sensory and motor innervation to the face. It is main function which transmitting sensory information to the skin, sinuses, and mucous membrane in the face. That nerve is communicates touch , pain and temperature to brain.
Three cranial nerves carry purely sensory information and four cranial nerves carry almost entirely somatic motor information. The remaining cranial nerves carry some combination of sensory, somatic motor and parasympoathetic information.
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Answer:
So, the correct option is 'The causative HIV retrovirus reduces the number of T-helper lymphocytes'.
Answer:
A. Carbon and hydrogen
