The Limbic System

Question 1

What is Sommer’s sector?

Answer 1

Part of the hippocampus (CA1) region which is VERY sensitive to hypoxia

Question 2

Contains a pyramidal layer made of pyramidal neurons

Answer 2

Hippocampus

Question 3

Serves as the main integrator of the autonomic and endocrine systems

Answer 3

Hypothalamus

Question 4

believed to participate in memory acquisition, subjective experience of emotions and, via the autonomic nervous system, the visceral manifestations of emotions

Answer 4

Hippocampus

Question 5

This is a circuit linking the hippocampus with the cingulate cortex

Answer 5

Circuit of papez

Question 6

What must be intact in order for new memories to be created?

Answer 6

The circuit of papez must be intact in at least one hemisphere in order for new memories to be acquired

Question 7

Where does the hippocampus send its fibres?

Answer 7

To the mamillary body of the hypothalamus

Question 8

What is required for learning an association between 2 stimuli (e.g. name and face)?

Answer 8

An intact hippocampus

Question 9

Required for recalling the memory for a time after it is acquired?

Answer 9

Hippocampus

Question 10

Anterograde amnesia

Answer 10

Inability to form new memories

Question 11

Retrograde amnesia

Answer 11

Inability to recall memories before the onset of amnesia

Question 12

Temporally graded retrograde amnesia

Answer 12

Patient can recall remote events more easily than recent ones

Question 13

The pyramidal layer in the hippocampus is made of three layers, what are these layers and which one is most sensitive to hypoxia?

Answer 13

CA1, 2 and 3

CA1 is most sensitive to hypoxia

Question 14

This structure has a role in evaluating the significance of environmental events and the association of environment events and reinforcement

Answer 14

Amygdala