Health Sciences 2300A/B Lecture Notes - Lecture 2: Phagocyte, Glial Scar, Normal Type

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 2300A/B
• Professor: Christopher William James Melling

Document Summary

Spinal cord and spinal nerves: todays objectives. Identify the components of the spinal cord: differentiate between peripheral and central regeneration, spinal cord. Hs 3300: lumbar puncture spinal tap, hollow needle inserted into subarachnoid space to withdraw cerebrospinal fluid (csf) for diagnostic purposes, to introduce antibiotics, etc. Patient lies on side with vertebral column flexed. They extend along entire length of spinal cord and protect spinal cord against sudden displacement that could result in shock: arachnoid mater, thin, avascular covering. Spider web"s arrangement of delicate collagen fibres and some elastic fibres. Hs 3300: myelin allows for faster response to stimuli and motor output. Hs 3300: e. axonal sprouting (axonal sprouts form at proximal stump and grow until they enter distal stump, guided by growth promoting factors called trophic molecules which are secreted by. Schwann cells: enters distal stump, schwann cell proliferation, f. growth cone (neuronal growth cones situated on tips of nerve cells which are axons and dendrites.