ANA300Y1 Lecture Notes - Lecture 10: Somatic Nervous System, Parasympathetic Nervous System, Choroid Plexus
Document Summary
Dendrite=rich in neurotransmitter receptor axon=rich in voltaged gated channel membranes in protein that defines whether it is a dendrite or axon. The nervous system: anatomical divisions 1) cns=brain&spinal cord brain in the cranium. Spinal cord in the vertebral column (where higher order functions take place and integration) function: integrate &process sensory input, initiate & control motor output, higher cognitive functions (memory, emotions, prediction) Central vs peripheral nervous system swellings=ganglia associated with pns, where pns keeps neuronal cell bodies. The nervous system: functional divisions 1 somatic nervous system (sns, they derive from somites, innervates the derivatives of somites, body walls and limbs): function concerned with voluntary movement & conscious sensation input: conscious (ex: touch, pressure etc) Eye movement eye muscle is pupil that is smooth muscle, no voluntary control of diameter (ex: light) skeletal muscle that moves the orbit. Glial in the pns: schwann cells form the myelin sheath surrounding myelinated axons in the.
