Nervous System

Question 1

As the temperature in the house falls at night, the thermostat senses, the change, which in turn, causes the heater to run, raising the temperature. This is an example of a _____ feedback loop, which in the body would tend to _____ homeostasis. 

Answer 1

Negative
Support

Question 2

Order of occurrence in homeostatic feedback?

Answer 2

Controlled condition
Stimulus
Receptor
Control center
Effector
Response

Question 3

True or False

The sympathetic and parasympathetic systems are both branches of the autonomic nervous system 

Answer 3

True

Question 4

True or False about the autonomic NS
Synapses directly on skeletal muscle 

Answer 4

False

True statements:
Acts on glands
Ask on cardiac and smooth muscle
Has ganglia 

Question 5

Dual innervation in the automatic nervous system means 

Answer 5

Sympathetic and parasympathetic, innervation of target tissues 

Question 6

Compared to the parasympathetic nervous system, sympathetic, nervous system responses tend to be 

Answer 6

Longer and more widespread 

Question 7

What is the main neurotransmitter at parasympathetic postganglionic neurons?

Answer 7

Acetylcholine

Question 8

What is the main neurotransmitter at sympathetic postganglionic neurons? 

Answer 8

Norepinephrine

Question 9

The stress response begins in what? 

Answer 9

Hypothalamus 

Question 10

True or False

Cortisol is more dominant during alarm stage, then resistance stage 

Answer 10

False

True statements:
The adrenal medulla
The sympathetic nervous system
Epinephrine

Question 11

The hypothalamus is involved in _____ in creating the stress response.

Answer 11

Both
sympathetic nervous system activation and catecholamine (epinephrine, norepinephrine) secretion
and glucocorticoid (cortisol) secretion

Question 12

During the stress response, what increases?

Answer 12

Blood glucose
Metabolism
Respiration
Blood clotting
Blood pressure
Heart rate

Question 13

During the stress response, what decreases?

Answer 13

Digestion
Urine production
Growth
Reproduction

Question 14

What did the letters SAM in “SAM axis” stand for? Which hormones are produced when this axis is active? 

Answer 14

SAM stands for sympathetic nervous system, Adrenal medulla

epinephrine, norepinephrine

Question 15

What did the letters HPA in “HPA axis” stand for? Which hormones are produced when this axis is active?

Answer 15

HPA stands for hypothalamus, anterior pituitary, adrenal cortex 

Cortisol (and aldosterone and androgens)