BIOB32H3 Lecture : pns.docx

43 views7 pages

Document Summary

Peripheral nervous system (pns: pns all neural structures outside the brain and spinal cord, includes: sensory receptors, peripheral nerves, associated ganglia, and motor endings, provides links to and from the external environment. Sensory receptors: structures specialized to respond to stimuli, activation of sensory receptors results in depolarizations that trigger impulses to the cns, the realization of these stimuli, sensation and perception, occur in the brain. Receptor class by location: exteroceptors: respond to stimuli arising outside the body, found near the body surface, sensitive to touch, pressure, pain, and temperature, includes the special sense organs. Receptor class by location: interoceptors: respond to stimuli arising within the body, found in internal viscera and blood vessels, sensitive to chemical changes, stretch, and temperature changes. Receptor class by location: proprioceptors: respond to degree of stretch of the organs they occupy, found in skeletal muscles, tendons, joints, ligaments, and connective tissue coverings of bones and muscles, constantly advise the brain of one"s movements.

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

Related Questions