Chapter 1: Bio & Behavior

Question 1

PNS

Answer 1

Includes all 31 pairs of of spinal nerves, and 10 of 12 (minus optic and olfactory) cranial nerves
- divides into somatic and autonomic systems

Question 2

Somatic nervous system

Answer 2

Sensory and motor neurons distributed throughout skin, joints, and muscles.

Question 3

Autonomic nervous system

Answer 3

Sympathetic and Parasympathetic divisions

Question 4

Parasympathetic nervous system

Answer 4

‘Rest and digest’
NT = Ach
Functions: constricts pupils, stimulates saliva, constricts bronchi, slows HR, stimulates peristalsis/secretion/bile release

Question 5

Sympathetic nervous system

Answer 5

‘Fight or flight’
NT =
Functions: increase HR, dilates pupils, relaxes bronchi, inhibits peristalsis/secretion, stimulates glucose production and release, secretion of adrenaline and noradrenaline, inhibits bladder contraction

Question 6

Interneurons

Answer 6

Found between other neurons; most numerous of the three types of neurons

Question 7

Forebrain structures

Answer 7

Cerebral cortex (complex perceptual, cognitive, and behavioral processes), basal ganglia (movement), limbic system (emotion and memory), thalamus (sensory relay station), hypothalamus (hunger, thirst, emotion)

Question 8

Midbrain

Answer 8

Superior (visual) colliculi & inferior (auditory) colliculi

Question 9

Hindbrain

Answer 9

Cerebellum (refined motor movements), medulla oblongata (vital functioning: breathing, digestion, sleep), reticular formation (arousal, alertness)

Question 10

Prosencephalon tripartite brain forms…

Answer 10

Telencephalon and diencephalon

Question 11

Rhombencephalon tripartite brain forms…

Answer 11

Metencephalon (pons and cerebellum) and myelencephalon (medulla oblongata)

Question 12

Thalamus

Answer 12

• part of diencephalon

- relay station for sensory info (transmits to appropriate parts of cerebral cortex)