Thalamus

Question 1

The _________ is a large, egg-shaped mass of gray matter that forms the major part of the diencephalon.

Answer 1

thalamus

Question 2

Which ventricle is the thalamus medially associated with?

Answer 2

Third

Question 3

The anterior end of the thalamus is narrow and rounded and forms the posterior boundary of which part of the ventricular system?

Answer 3

Interventricular foramen

Question 4

The posterior end of the thalamus is known as __________

Answer 4

Pulvinar

Question 5

The posterior end of the thalamus overhand which structure?

Answer 5

Superior colliculus

Question 6

This is the band of grey matter that connects the two thalami

Answer 6

Interthalamic connection/adhesion

Question 7

The thalamus is covered on its superior surface by a thin layer of white matter, called the _____

Answer 7

Stratum zonale

Question 8

The thalamus is covered on its lateral surface by a thin layer of white matter, called the _______

Answer 8

External medullary lamina

Question 9

This is the vertical sheet of white matter that divides the grey matter of the thalamus into medial and lateral halves

Answer 9

Internal medullary lamina

Question 10

What nucleus is contained in the anterior part of the thalamus?

Answer 10

Anterior thalamic nuclei

Question 11

What is the function of the anterior thalamic nucleus

Answer 11

Coordinates with the limbic system for emotional tone and mechanisms of recent memory

Question 12

Which nucleus is contained in the medial part of the thalamus?

Answer 12

Dorsomedial nucleus

Question 13

Which thalamic nucleus is responsible for the integration of a large variety of sensory information, including somatic, visceral, and olfactory information, and the relation of this information to one’s emotional feelings and subjective states?

Answer 13

Dorsomedial nucleus

Question 14

Which nuclei is included in the Dorsal Tier of the lateral part of the thalamus?

Answer 14

Lateral Dorsal nucleus
Lateral Posterior nucleus
Pulvinar

Question 15

Which nuclei is included in the Ventral tier of the lateral part of the thalamus?

Answer 15

Ventral anterior nucleus
Ventral lateral nucleus
Ventral posteromedial nucleus
Ventral posterolateral nucleus

Question 16

Which thalamic nuclei influences the activities of the motor cortex?

Answer 16

Ventral Anterior and Ventral Lateral Nucleus

Question 17

Which thalamic nuclei receives the ascending trigeminal and gustatory pathways?

Answer 17

Ventral posteromedial nucleus

Question 18

Which thalamic nucleus receives the ascending sensory tracts of the medial and lateral lemnisci?

Answer 18

Ventral posterolateral nucleus

Question 19

Which nucleus of the thalamus influences the levels of consciousness and alertness of an individual?

Answer 19

Intralaminar nucleus

Question 20

The thalamic nuclei which consist of groups of nerve cells adjacent to the third ventricle and in the interthalamic connection.

Answer 20

Midline nuclei

Question 21

Which thalamic nucleus is a thin layer of nerve cells sandwiched between the external medullary lamina and the posterior limb of the internal capsule.

Answer 21

Reticular nucleus

Question 22

Thalamic nucleus that forms part of the auditory pathway and is a swelling on the posterior surface of the thalamus beneath the pulvinar.

Answer 22

Medial geniculate body

Question 23

Thalamic nucleus that forms part of the visual pathway and is a swelling on the undersurface of the pulvinar.

Answer 23

Lateral geniculate body

Question 24

What are the two sensory-motor axonal loops, relayed by the thalamus, necessary for normal voluntary movement?

Answer 24

A. Cerebellar-rubro-thalamic-ponto-cerebellar loop

B. Cortiostriatal-pallidal-thalamic-cortical loop