Diencephalon

Question 1

What does the Diencephalon include?

Answer 1

1. Dorsal Thalamus
2. Hypothalamus
3. Ventral Thalamus
4. Epithalamus

Question 2

Where is the Dorsal Thalamus located? In relation to other structures.

Answer 2

• Superior to the hypothalamic sulcus

- Between the interventricular foramen and splenium of the corpus callosum.

Question 3

What are the relevant EXTERNAL structures in the Dorsal Thalamus?

Answer 3

• Lateral Geniculate Body
• Medial Geniculate Body
• Pulvinar

Question 4

What are the relevant INTERNAL structures in the Dorsal Thalamus?

Answer 4

• Sensory
• Motor
• Modulatory

Question 5

What is the function of the Dorsal Thalamus?

Answer 5

Processes most of the information that reaches the cerebral cortex.

Question 6

Where is the Hypothalamus located? In relation to other structures.

Answer 6

• Inferior to the hypothalamic sulcus
• superior to the pituitary gland
• caudal to the lamina terminalis

Question 7

What are the relevant EXTERNAL structures in the Hypothalamus?

Answer 7

• Infundibulum

- Mammillary Bodies

Question 8

What are the relevant INTERNAL structures in the Hypothalamus?

Answer 8

• Suprachiasmatic Nucleus

Question 9

What is the function of the hypothalamus?

Answer 9

Integrates autonomic response and endocrine function with behavior. Control of homeostasis, reproduction, and emergency response to stress.

Question 10

Where is the Ventral Thalamus located? In relation to other structures.

Answer 10

• Caudal to the hypothalamus
• Rostral to the diencephalon-brainstem junction
• Lateral to the midline

Question 11

What is the function of the Ventral Thalamus?

Answer 11

Related to the basal ganglia of the telencephalon.

Question 12

Where is the Epithalamus located? In relation to other structures.

Answer 12

In close approximation to the posterior commissure?

Question 13

What are the relevant external structure of the Epithalamus?

Answer 13

Pineal Gland

Question 14

What is the function of the Epithalamus?

Answer 14

Related to the limbic system, role in circadian rhythm.