Autonomic Nervous System Flashcards
The division of the nervous system that prepares the body
for intense levels of activity and stress is the?
A. sympathetic division
B. parasympathetic division
C. craniosacral division
D. intramural division
E. somatomotor division
A sympathetic is fight or flight
What is the Rest and digest system
parasympathetic system
Define Autonomic system
Nervous system that resides in the CNS and PNS, Has two major systems within it, parasympathetic and sympathetic. Minor system is the enteric system controlling the gut
What is the enteric system
Controls the gut
What is the somatomotor division
efferent motor neurons of the somatic neurological system
Which area is NOT normally considered to be an autonomic control center? A.pons B.medulla C.brainstem D.amygdala E.hypothalamus
D amygdala is responsible for fear and memory
Functions of hypothalamus
Temperature control
Water balance
Eating behaviour
Functions of Pons
Urinary bladder control
Secondary respiratory center
blood pressure
Function of medulla
Blood pressure
Respiratory center
Increased parasympathetic stimulation? A.increases heart rate B.decreases gastric motility C.relaxes airways D.releases urine E.dilates pupils
D Parasympathetic increases urination
Increase effect of sympathetic system results in?
Increased heart rate Decreased gastric motility relaxation of airways Relaxation of smooth muscle Dilates pupils
The concept of “dual innervation” refers to an organ
receiving?
A.two nerves from the spinal cord
B.both autonomic and somatomotor nerves
C.both sympathetic and parasympathetic nerves
D.nerves from both the brain and the spinal cord
E.nerves to each of a pair or organs (e.g., kidneys)
C
Which of the following steps does
NOT occur at an
autonomic synapse releasing noradrenaline NA)?
A.Action potential arrives at the varicosity
B.Depolarization opens voltage gated Ca 2+ channels
C.NA binds to adrenergic receptors on target
D.NA is taken back into vesicles for re release
E.NA is degraded to tyrosine
E Tyrosine is the precursor for noradrenaline not degrades into it
