(9.2) Nervous Control Flashcards
0
Q
PNS
A
Pairs of nerves from brain & S cord
1
Q
Nervous system:
A
PNS & CNS
2
Q
CNS
A
Brain & S cord
3
Q
PNS
A
MNS & SNS
4
Q
MNS
A
ANS & VNS
5
Q
ANS
A
IV
NI -> smooth & cardiac muscle & to glands
6
Q
VNS
A
Conscious
NI to body muscle
7
Q
ANS splits to;
A
Sympathetic NS
parasympathetic NS
8
Q
Sympathetic does; (4)
A
Stimulate effector
Speeds
Heighten awareness
F/F
9
Q
Parasympathetic does (4);
A
Inhibit effector
Slow
Resting condition
Energy maintenance - replenishing
10
Q
Sympathetic & Psymapa are…
A
Antagonistic
11
Q
Benefits of reflex arc (6)
A
Involuntary Survival Unlearned Rapid Brain other complex activities Protection from harm
12
Q
Reflex arc PW;
A
SRSIMER
13
Q
SRSIMER example
A
Stimulus; heat Receptor; (gland/muscle) temp rec in skin ; creates NI SN; sends NI 2 S cord IN; send NI from SN to MN in s cord MN; NI to effector (muscles upper arm) E; muscle upper arm contracts R; pull hand
