Efferent Divison of the PNS Flashcards
How many neurons does a somator motor have?
1
What kind of effector organ goes along with somatic motor
skeletal muscle
Can somatic motor be both inhibitory and excitatory
no, just e
Somatic motor usually under what control?
concious control
Autonomic Motor, how many neurons
2
What effector organs does autonomic motor neurons go to?
smooth and cardiac muscle, glands, gi neurons
What kind of control does autonomic nervous system operate under?
outside of concious control
Sympatheic Nevrous system
-prepares body for emergent or stressful situation
-fight or flight response
-inhibits processes that dont help physical exertion
Parasympatheic NS
-day to day activities and quiet relaxed situations
-rest or digest
-activate processes that help during the resting state
Where is the sympatheic located
thoracolumbar division
What are the length of the ganglion nerves in the SNS
short pre and long post
What kind of signaling is there in the SNS
diffuse signaling meaning one AP can influence multiple organs
Where is the PANS located
craniosacral divison
What is te length of the nerves in the PANS
long pre and short post
What kind of signaling in the PANSW
discrete: goes a long way to that organ
What is the name for the synapse between postganglionic neruon and its effector
neuroeffector junction
Varicosities
swollen places of the axon, where voltage gated calcium channels induce the rlease of NTs from vesucle via exocytosis
Somatic NT and receptor
Ach to N-AChR
Autonotmic NT and reptor in SYM
1: ACh to N-ACHR which releases NEinto adrenergic receptors
2: release ACh ont the N-ACHR which its gaglion is int he adrneal medulla which releases epi onto adrenergic receptors via the blood stream
Autonoic NT and receptor in PARA
-release ACh in both locations the first receptor is N and the second is M
