ZOOL 2403 Lecture 3: Anatomy Exam Three Review
Document Summary
Olfactory pathway: odors are sensed by the olfactory receptors whose axons pass through the cribriform plate forming cn i (olfactory nerve, cn i synapse on neurons in the olfactory bulb whose axons form the olfactory tract which send info to the olfactory cortex in the temporal lobe, olfactory tract bypasses the thalamus, odor(cid:224)olf rs(cid:224)cni(cid:224)olf bulb(cid:224)olf tracts (cid:224)olf cortex. Made of dense connective tissue: the sclera, the white sheath that protects the eyeball, the cornea, transparent continuation of the sclera that protects the lens, avascular (cannot regenerate, middle layer. Made of loose connective tissue layer: the choroid, contains blood vessels that supply oxygen and nutrients to the tissues of the eye, the cilliary, anterior continuation of the choroid, contains smooth muscle that controls the shape of the lens for focusing on objects, the iris, gives the eye color, composed of smooth muscle which changes the size of the pupil to allow light in, inner layer.
