ANP 1106 Lecture Notes - Lecture 10: Septum Pellucidum, Median Aperture, Ependyma

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jacqueline Carnegie

Document Summary

Somatic ns: voluntary; from cns to skeletal muscle. Autonomic ns: involuntary; (visceral motor); from cns to cardiac muscle, smooth muscle, glands: sympathetic division: (cid:862)fight or flight(cid:863, parasympathetic division: conserve energy at rest. Histology of nervous tissue: (cid:448)er(cid:455) (cid:272)ellular; (cid:373)i(cid:374)i(cid:373)al e(cid:454)tra(cid:272)ellular (cid:373)atri(cid:454, 2 pri(cid:374)(cid:272)ipal t(cid:455)pes of (cid:272)ells: (i) (ii) Know: cell body, dendrites, axon, axon hillock, myelin sheath, node of ranvier, terminal branches, axonal terminals: functional classification of neurons. According to direction nerve impulse travels wrt cns. Sensory, motor & association neurons: sensory: toward cns; primary, secondary, tertiary. Except bipolar neurons in some special sense organs, virt all primary sensory neurons are unipolar & cell bodies located in ganglia outside cns. Complexity of wiring rather than size is what matters. Subdivisions: cerebral hemispheres, diencephalon (thalamus, hypothalamus, epithalamus, brain stem (midbrain, pons, medulla, cerebellum. Spinal cord has central cavity surrounded by gray matter & white matter.