Control lecture 5: Forebrain and ventricles Flashcards Preview

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Flashcards in Control lecture 5: Forebrain and ventricles Deck (10)
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1

What does the forebrain consist of?

The diencephalon and cerebral hemispheres.

2

For what is the forebrain responsible?

Higher level processing

3

From what part of the forebrain do the optic nerves originate?

The diencephalon (thalamus).

4

What name is given to the ridge that seperates the diencephalon into the thalamus and hypothalamus?

The hypothalamic sulcus

5

Exactly what are the thalamus/hypothalamus?

A collection of nuclei.

6

What are the features of the thalamus?

Large, egg-shaped collection of nuclei
One on each side of midline
3rd ventricle wedged between
All (but one - reticular) nuclei send fibres to cerebral cortex, either to sharply defined area or more diffusely
Those connecting to defined cortical area are RELAY nuclei, may be sensory or motor

7

What are the features of the hypothalamus?

Also made up of several nuclei
Has autonomic and neuroendocrine functions

8

What is the subthalamus

Underneath thalamus and hypothalamus. Involved in motor control. Lesion causes random motor contractions.

9

What is the epithalamus?

Mostly the pineal gland (secretes melatonin)

10

From what structure does the corpus callosum develop?

Lamina terminalis