BIOLOGY 2C03 Lecture Notes - Muscle Spindle, Stretch Reflex, Rigor Mortis

23 views1 pages

Document Summary

Motor system i spinal motor system: major components of motor system. Parietal cortex: visual and proprioceptive processing gives positional info. Motor cortex: compute forces needed to cause desired motor action. Brainstem: tells spinal cord how to maintain balance during movement. Spinal cord: effects movement, reflex stability, and relays sensory info. Basal ganglia: learning and stability of movements, emotional aspects of movement. Motor system diseases: how spinal cord injury results in paralysis. Initial injury in small region growth of damaged area hemorrage of blood vessels. Glu release neuron excitotoxicity and glia apoptosis. Paralysis can be partially overcome with direct electrical stimulation from neural prosthetic: other diseases/conditions. Polio: virus kills motoneurons directly, post-polio syndrome includes motor unit enlargement followed by muscle breakdown. Als: slow degeneration of motorneurons and motor cortex. Motor stroke: spinal motoneurons not affected, but central control is weak. Rigor mortis: stiff muscles after death, no atp available for myosin detachment.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents