BIO210Y5 Lecture Notes - Lecture 15: Withdrawal Reflex, Grey Matter, Adipose Tissue

22 views5 pages
School
Department
Course

Document Summary

The spinal cord can function independently from the brain. Relux: rapid, automatic response triggered by speciic stimuli. Relexes preserve homeostasis by making rapid adjustments in the function of organ systems. The response shows little variability: particular relex is activated: usually produces same motor response. The stimulation of dendrites produces a graded polarization that leads to the formation and propagation of action potentials along the axons of the sensory neurons. This information reaches the spinal cord by the way of a dorsal root: information processing in the cns. Information processing begins when the sensory neuron releases excitatory neurotransmitters at the postsynaptic membrane of the interneuron: activation of motor neuron. The release of neurotransmitters at the axon terminals. A relex response tends to remove or oppose the original stimulus. The relex arc is therefore an example of the negative feedback. The route of a single relux is referred to as the relex arc.

Get access

Grade+
$40 USD/m
Billed monthly
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
10 Verified Answers
Class+
$30 USD/m
Billed monthly
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
7 Verified Answers

Related textbook solutions

Related Documents

Related Questions