The hornworm has just 70 muscles per segment, with just one nerve controlling each muscle, for the most part.
The nerves controlling the actions of the muscles are the third, fourth, and sixth cranial nerves, with their bodies (nuclei) in the brainstem; the third, or oculomotor nerve, controls the superior and inferior recti, the medial rectus, and inferior oblique; the fourth cranial nerve, the trochlear nerve, controls the superior oblique; and the sixth, the abducens nerve, controls the lateral rectus.
"The optic nerve controls the message from the brain to the eye.
The chromatophores are expanded by nerves controlled by the brain, and the colours are exposed (brown, black, red, yellow, or orange red).
Furthermore, immunohistochemistry assays have shown that epithelial cells of the rat thymus are close to catecholaminergic nerves controlled by dopamine [ 147].
The nerves control the dilation and contraction of blood vessels, and dilated blood vessels in the head are known to cause several kinds of headaches.
These nerves may carry nonvisual sensory messages e.g., pain or they may be motor nerves controlling the muscles of the eye.
This network of nerves controls the body's "rest and digest" mechanism, which slows the heart rate, moves muscles that squeeze food through the gut and triggers the release of digestive juices.
SMA is a degenerative disease that destroys the nerves controlling voluntary muscle movement, which affects crawling, walking, breathing, head and neck control, and even swallowing.
Tabosa et al. (2006) observed that prolonged consumption of P. juliflora pod affects cranial nerves, controlling neck muscle, of cattle.
The patient presented in this case transiently had loss of function of peripheral nerves controlling tongue movement, but ultimately regained the ability to produce speech without further sequelae.
