PSYCH 3M03 Chapter Notes - Chapter 4: Adrenocorticotropic Hormone, Acetyl-Coa, Preganglionic Nerve Fibers

• School: McMaster University
• Department: Psychology
• Course: PSYCH 3M03
• Professor: Aadil Merali Juma

Document Summary

Two general division: central nervous system (cns) brain and spinal cord, peripheral nervous system (pns) nerves throughout body outside of cns. Ganglia clusters of nerve cells outside of cns. Point of connection: spinal cord most, brain stem (at base of brain, top of spinal cord) cranial nerves; 12 pairs of nerves. Afferent nerves bring sensory information to cns. Efferent nerves conduct information from cns to muscles. Hindbrain (part of brainstem) reflexive behaviour: medulla oblongata. Contains nuclei that regulate vital functions (heartbeat, respiration: pons. Contains nuclei related to cranial nerves, simple sensory processing and general activation of the individual: cerebellum (connected to the pons) Non-conscious integration of sensory and motor information allows for complex coordination. Midbrain (part of brainstem above hindbrain: tectum. Involved in auditory and visual information: tegmentum. Forebrain very involved in motivation and emotion: thalamus. Majority of neural input that goes to higher areas of the cerebral cortex is received via projections from specific regions of the thalamus.