The flashcards below were created by user
on FreezingBlue Flashcards.
What is sensory input?
gather information from environment
process the information
stimulate body to respond appropriately
What is the nervous sytem designed to do?
- sensory input - gather information from environment
- integration - process it
- motor output - stimulate body to respond appropriately
What is CNS and PNS?
CNS - brain & spinal cord (both are protected by bone)
- PNS - all nerves exiting spinal cord & innervate body
- * two subdivisions
- - autonomic NS - sends impulses to control involuntary actions
- - Somatic NS - sends impulses to control voluntary actions
What is Autonomic NS?
branch sending impulses controlling involuntary actions
What is Somatic NS?
branch sending impulses controlling voluntary actions
Afferent Signal, Integration, & efferent signal
afferent signal - when stimulus is detected by NS, impulse is sent to brain
integration - brain receives information & proceses it
efferent signal - When the impulse sends out a response, it is sent to the body
efferent impulses reaching skeletal muscle (voluntary movement)
branch innervating pharyngeal muscles
nerves carrying efferent impulses reaching internal organs & regulating involuntary muscle contractions
afferent impulses originating from non-visceral areas such as skin & muscle
Two types of somatic sensory
proprioceptive senses - sends sensory information from muscle, ligaments, tendons, & indicate body position
Special somatic senses - localized receptors such as those of ear & eyes
sends sensory information from muscle, ligaments, tendons, & indicate body position
Special somatic senses
localized receptors such as those of ear & eyes
afferent impulses generated by internal organs (ex. taste buds)