ANP 1106 Lecture Notes - Lecture 9: Genetic Disorder, Supraoptic Nucleus, Long Term Ecological Research Network

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

Document Summary

Central nervous system: brain + spinal cord, integrating and command centre. Peripheral nervous system: cranial and spinal nerves, communication between cns and all parts of body, sensory division: somatic & visceral bers; from receptors to cns, motor division: motor nerve bers from cns to effectors. Somatic ns: voluntary; from cns to skeletal muscle. Autonomic ns: involuntary; (visceral motor); from cns to cardiac muscle, smooth muscle, glands. Overview: very cellular; minimal extracellular matrix, 2 principal types of cells: supporting cells neurons. Astrocytes: star-shaped, most abundant anchor neurons close to capillaries roles in nutrient exchange, antigen presentation, control of environment. Microglia: protective touch neurons to monitor well-being can transform into macrophages. Ependymal cells: line cavities of brain & spinal cord as barrier between. Csf & uid bathing cells of cns cilia circulate csf. Few branches provide myelin sheaths to cns neurons. Satellite cells: surround neuron cell bodies in ganglia in uence chemical environment of these neurons.