ZOO 3733C Study Guide - Final Guide: Vagus Nerve, Fovea Centralis, Vas Deferens
Document Summary
Oligodendrocytes form myelin sheaths in the cns, and schwann cells in the pns. Myelin sheaths are electrically insulating layers that form around the axon of a neuron. The lateral and 3rd ventricle are connected via the intraventricular foramen of monroe, and the. 3rd and 4th via the cerebral aqueduct of sylvius. Infections can travel into this sinus and cause thrombosis (blood clots). The (cid:272)aver(cid:374)ous si(cid:374)us s (cid:272)o(cid:374)te(cid:374)ts (cid:272)a(cid:374) (cid:271)e re(cid:373)e(cid:373)(cid:271)ered i(cid:374) a (cid:373)(cid:374)e(cid:373)o(cid:374)i(cid:272): o tom cat. Infection typically occurs from the gram-negative bacteria staphylococcus aureus, and may cause extreme swelling and paralysis of the eye. Stapedius muscle innervated by cn vii (facial) inserts at the neck of the stapes, and the tensor tympani muscle innervated by cn v (trigeminal) inserts at the malleus. Cones of the eye detect color and rods detect black and white. There are no rods at the fovea centralis, and there are no cones or rods at the optic disk.
