Forebrain Flashcards Preview

Term IV: Neuro > Forebrain > Flashcards

Flashcards in Forebrain Deck (14):
1

What is the forebrain?

Cerebral cortex and collection of deep nuclei derived from telencephalon and diencephalon that generates cognitive and emotional life of a sentient being

Everything above the midbrain

2

What do deep nuclei include?

- Thalamus
- Hypothalamus
- Basal ganglia
- Nuclei of the limbic system

3

Collection of Nuclei concerned with autonomic functions, appetite, temperature control, circadian rhythm and endocrine regulation

Supreme command of endocrine/autonomic systems

Hypothalamus

4

VL nucleus

Location?
Input?
Output?

Location: Thalamus

Input: basal ganglia and cerebellum

Output: cortex - helps with motor control

5

VPL and VPM nuclei

Location?
Input?
Output?

Location: Thalamus

Input: somatosensory (DC) and spinothalamic (STT) tracts, serving sensation from contralateral face and body

Output: post-central gyrus of cortex

6

Collection of nuclei that are in communication with the cortex and with other deep nuclei

Heavily involved in emotional regulation and memory

Limbic system

7

If damaged, new memories may not be formed

Hippocampus - (part of limbic system)

8

Interpretation and experience of fear, may be important in anxiety disorders

Amygdala - (part of limbic system)

9

Reward - "sex, drugs, rock and roll", important in addiction disorders

Septal area - (part of limbic system)

10

How does forebrain interact with external world?

- Sensory (DC and STT)
- Motor output (CST)
- Special senses

11

How does forebrain interact with internal world?

- Limbic system (emotions, memories)
- Basal ganglia (train of thought and emotions)
- Cortex (plans, aspirations, schemes, plots)

12

How does forebrain execute action?

- Plans form in frontal cortex
- Info flows in parallel to basal ganglia and cerebellum for computation and smoothing
- Outflow from basal ganglia and cerebellum converge on VL nucleus
- VL projects back to frontal cortex w/ execution plan

13

What are examples of actions that are not motor acts?

Train of thought, focus of attention, emotional control

14

What side (ipsi or contra?) does cortex communicate with for the following:

Basal ganglia

Cerebellum

Basal ganglia - ipsilateral

Cerebellum - contralateral