NS 4 - Brain Region Functions

Question 1

List the primary functions of the Diencephalon

Answer 1

Link brain with brain stem

Integrates sensory info with motor commands

Question 2

List the primary functions of the Midbrain

Answer 2

Mesencephalon - maintain consciousness, process sight and sound associated with reflexes

Pons - involved in somatic and visceral motor control

MO - relays info, Co-Ord and regulate autonomic functions, control visceral functions, comm w/ brain via tracts

Question 3

List the primary functions of the cerebellum

Answer 3

Co-Ord repetitive body movements

Control postural muscles

Directs conscious and unconscious movements

Question 4

List the primary functions of the Hypothalamus

Answer 4

Control autonomic functions
Coord activities of NS and endo
Coord vol and auto functions (fight or flight)
Circadian rhythms

Provide subconscious control of skeletal muscles
Produce emo and behavioral drives (feeding and thirst centre )

Reg body temp by Preoptic area

Secretes hormones (ADH, OXT)

Question 5

List the primary functions of the thalamus

Answer 5

Final relay station

Filter portions or incoming sense info

Relay info b/w BN and CC

Question 6

List the primary functions of the lymbic system

Answer 6

Functional group

Establish emo state

Link conscious functions of CC w/ autonomic functions

Facilitate memory storage and retrieval

Question 7

List the primary functions of the basal nuclei

Answer 7

Subconscious skeletal muscle control
Alter commands via feedback loop
Info from integrative centers
Lateral processes in nuclei

Nuclei project to CC
Substantia Nigra inhibit activity of dopamine prod

Question 8

List the primary functions of the cerebrum

Answer 8

Control higher mental functions

Surface layer of GM