drive - basic brain structures

Question 1

What do all vertebra have?

Answer 1

A brainstem

Question 2

What is the brainstem responsible for? (general, 2)

Answer 2

Basic vital functions (breathing and heart rate etc)

and delivering basic responses

Question 3

What % of neurones in the brain are found in the cerebellum?

Answer 3

70%

Question 4

Describe (briefly) the structure of the cerebellum

Answer 4

The cortex is very uniform

Question 5

What is the cerebellum responsible for? (3)

Answer 5

Receives input from motor cortex, brain stem nuclei and sensory receptors

and modulates upper motor neurons

and coordinated voluntary movement

Question 6

What is the dorsal striatum comprised of?

Answer 6

Caudate nucleus and putamen

Question 7

What is the ventral striatum comprised of?

Answer 7

The nucleus accumbens and olfactory tubercle

Question 8

What is the Globus pallidus comprised of?

Answer 8

The internal and external segment

Question 9

What are the main components of the basal ganglia? (5)

Answer 9

Dorsal striatum
Ventral striatum
Globus pallidus
Ventral pallidum
Substancia nigra
Subthalamic nucleus

Question 10

How is the basal ganglia connected to the inputs of the brain?

Answer 10

Recurrent loops

Question 11

What is true about the outputs generated by the basal ganglia?

Answer 11

They are inhibitory and tonically active (slow and continuous)

Question 12

What is the hippocampus essential for? (4)

Answer 12

Episodic memory

Construction of mental images

Short term memory

Spatial memory and navigation