T1 U6 ANS Flashcards
1
Q
Which body activities does ANS control
A
HR, BP, stomach secretion etc
2
Q
Does the internal environment stability depend on the ANS
A
Yes
3
Q
Contrast the somatic NS vs ans
A
Somatic
- cell body of motor neuron in CNS
- axons extend to skeletal muscles
Ans
- 2x motor neuron chain
- has preganglionic neuron in brain and spine
- preganglionic axon leave CNS to synapse w/ 2nd motor neuron outside CNS
- axon of postganglionic extends to organ
4
Q
Name the 2 arms of the ANS
A
Sympathetic
Parasympathetic
5
Q
The role of parasympathetic NS
A
Digestion
Eliminate feces, urine
Conserve energy
Decrease demand on CNS
6
Q
Role of sympathetic NS
A
Prepare body for threats Hr and BP increase Increased blood glucose Dilate bronchi and blood vessels Withdraw blood from digestive system
7
Q
ANS is a sensory sub division of the PNS. True or false.
A
False. It’s a motor sub division
