F2F ms neuro chapter 60 part 1 Flashcards
controls thought, movement, and emotion
CNS
what type of nervous system: collects information from your sensory nerves to process and respond to them
CNS
what type of nervous system: involved in the movement, stimulus-response and physiological changes
PNS
what are the two parts of the PNS:
afferent
efferent
afferent or efferent: sensory
afferent
afferent or efferent: motor
efferent
pns: brings information to the CNS
sensory/afferent
sends sensory information to the CNS
sensory/afferent
sending information from the CNS to the body to carry out responses
motor/efferent
transmits motor commands from the CNS to the body
efferent
pns: toward the CNS
afferent
pns: away from the CNS
efferent
what is the size of the spinal cord
45 cm (18 inches)
increases speed of conduction
myelin sheath
for faster diffusion of ions; allow for ions to diffuse in and out of the neuron
node of ranvier