Diencephalon

Question 1

What does diencephalon mean?

Answer 1

Between brain

Question 2

What is the largest subdivision of the diencephalon?

Answer 2

Thalamus

Question 3

Which brain structure receives information mainly from basal ganglia, cerebellum and all sensory systems (except olfactory) as well as lambic system and association areas of cerebral cortex

Answer 3

Thalamus

Question 4

What makes up the epithalamus?

Answer 4

Pineal body, posterior commissure and habenuclar nuclei)

Question 5

Which structure helps identify preference, helping the brain to discriminate between potential actions and subsequent motivation decisions?

Answer 5

Habenuclear nuclei

Question 6

Which brain structure is involved with body temperature, thirst, appetitive and weight control, emotions, sleep cycles, sex drive, child birth, blood pressure and heart rate, production of digestive juices, balancing bodily fluids?

Answer 6

Hypothalamus

Question 7

The name for the broad posterior end of the thalamus which overhangs the medial and lateral geniculate bodies

Answer 7

Pulvinar

Question 8

Which structure is a collection of nuclei in the thalamus that are largely related to visual processing in higher cortical areas. Patients with a lesion to this structure show deficits in filtering out distracter information making it harder to maintain attention?

Answer 8

Pulvinar

Question 9

What connects the left and right sides of the Thalamus?

Answer 9

Interthalamic adhesion

Question 10

Which structure is a layer of myelinated fibers on the lateral surface of the thalamus close to the internal capsule, it separates the reticular nuclues from the rest of the thalamus mass and contains thalamocortical and corticothalamic fibers?

Answer 10

External medullary lamina

Question 11

Y shaped verticals sheet of white matter that divides the grey matter (nuclei) of the thalamus into 3 groups (anterior, medial and lateral); contains fibers connecting thalamus nuclei with one another and contains neuronal collections called intralaminar nuclei

Answer 11

Internal medullary lamina

Question 12

These nuclei connect with the limbic structures and exert influence upon emotional states and memory

Answer 12

Anterior nuclei in the anterior thalamus tubercle

Question 13

Responsible for integrating sensory, motor, visceral and olfactory information and subsequently relating it to the individual emotional state

Answer 13

Medial part of the thalamus nuclei

Question 14

What is the narrow rostral end of the thalamus?

Answer 14

Anterior thalamic tubercle

Question 15

What percent of the population have an interthalamic adhesion?

Answer 15

70%

Question 16

The dorsal tier of the thalamic nuclei include which 3 structures?

Answer 16

Lateral dorsal nucleus
Lateral posterior nucleus
Pulvinar

Question 17

This thalamic nuclei influences the activities of the motor cortex and is involved in planning and initiating movements.

Answer 17

Ventral anterior nucleus (VA)

Question 18

Which thalamic nuclei is active during both passive and active movement of contralateral parts of the body. It relays motor feedback from the cerebellum to the cerebral cortex

Answer 18

Ventral lateral nucleus (VL)

Question 19

Which thalamic nuclei gives from the neck down body wide conscious awareness of touch, pain, temp, etc.

Answer 19

Ventral posterolateral nucleus (VPL)

Question 20

Which thalamic nuclei gives conscious awareness of touch, pain, temp, etc. for the face

Answer 20

Ventro posteriormedial nucleus