BIOL 2410 Lecture Notes - Lecture 9: Cranial Nerves, Pineal Gland, Anterior Pituitary

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 2410
• Professor: Mc Lachlan Elizabeth

Document Summary

Has white and grey matter: white outside, grey inside. Origin of cranial nerves 2-12: not cranial nerves 1 - olfactory. Medulla - hindbrain: somatosensory and corticospinal tracts, control of involuntary functions, one area where cross over happens - pyramids. Nerves from left cross to and synapse on right side of brain and vice versa. Pons - hindbrain: breathing center, regulates equilibrium and posture, relay information between cerebellum and cerebrum. Midbrain: auditory and visual reflexes, eye movement. Processes somatic and sensory information from inner ear, and pns. Coordinates motor movement - sent to thalamus. Has a role in memory and cognition. Diencephalon - contains thalamus and hypothalamus and 2 endocrine glands: pituitary and pineal gland. Relay centre for many areas of cns. Receives sensory info from spinal cord, ear, optic nerve. Crosses in thalamus then sends info to cerebrum. Anatomy: two hemispheres connected by corpus callosum.