11.3 Flashcards
sensory neurons is all about
all about sensing
- it tells you info on what going on
motor neurons is all about
all about response (action)
- if something happens, its your motor neurons that stimulated it
seeing a ball going towards you (sensory)
ducking (motor)
what link CNS to the rest of the body
PNS
sensory neurons
sends an info about the ALL body parts to CNS
motor neurons
receives info from CNS and cause a response (effectors)
structures involved in somatic NS
12 myelinated cranial nerves
31 myelinated spinal nerves
cranial nerves is large involved in
head
neck
face
sensory carry intro from (3) (somatic)
skin
tendons
skeletal muscles
motor neurons carry info TO (somatic)
skeletal muscles
spinal nerves contains both
motor and sensory neurons
cause and “internal” reaction to a situation
autonomic NS
motors neurons involved with autonomic NS (2)
- either part of sympathetic or parasympathetic NS
- either stimulate or inhibits actions of glands, smooth / cardiac muscles
what maintains homeostasis
the opposing actions of sympathetic and parasympathetic NS
what is responsible to the “internal” homeostasis
autonomic NS
what controls the autonomic NS
hypothalamus and medulla oblongata
