Thalamus Flashcards
The _________ is a large, egg-shaped mass of gray matter that forms the major part of the diencephalon.
thalamus
Which ventricle is the thalamus medially associated with?
Third
The anterior end of the thalamus is narrow and rounded and forms the posterior boundary of which part of the ventricular system?
Interventricular foramen
The posterior end of the thalamus is known as __________
Pulvinar
The posterior end of the thalamus overhand which structure?
Superior colliculus
This is the band of grey matter that connects the two thalami
Interthalamic connection/adhesion
The thalamus is covered on its superior surface by a thin layer of white matter, called the _____
Stratum zonale
The thalamus is covered on its lateral surface by a thin layer of white matter, called the _______
External medullary lamina
This is the vertical sheet of white matter that divides the grey matter of the thalamus into medial and lateral halves
Internal medullary lamina
What nucleus is contained in the anterior part of the thalamus?
Anterior thalamic nuclei
What is the function of the anterior thalamic nucleus
Coordinates with the limbic system for emotional tone and mechanisms of recent memory
Which nucleus is contained in the medial part of the thalamus?
Dorsomedial nucleus
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?
Dorsomedial nucleus
Which nuclei is included in the Dorsal Tier of the lateral part of the thalamus?
Lateral Dorsal nucleus
Lateral Posterior nucleus
Pulvinar
Which nuclei is included in the Ventral tier of the lateral part of the thalamus?
Ventral anterior nucleus
Ventral lateral nucleus
Ventral posteromedial nucleus
Ventral posterolateral nucleus
Which thalamic nuclei influences the activities of the motor cortex?
Ventral Anterior and Ventral Lateral Nucleus
Which thalamic nuclei receives the ascending trigeminal and gustatory pathways?
Ventral posteromedial nucleus
Which thalamic nucleus receives the ascending sensory tracts of the medial and lateral lemnisci?
Ventral posterolateral nucleus
Which nucleus of the thalamus influences the levels of consciousness and alertness of an individual?
Intralaminar nucleus
The thalamic nuclei which consist of groups of nerve cells adjacent to the third ventricle and in the interthalamic connection.
Midline nuclei
Which thalamic nucleus is a thin layer of nerve cells sandwiched between the external medullary lamina and the posterior limb of the internal capsule.
Reticular nucleus
Thalamic nucleus that forms part of the auditory pathway and is a swelling on the posterior surface of the thalamus beneath the pulvinar.
Medial geniculate body
Thalamic nucleus that forms part of the visual pathway and is a swelling on the undersurface of the pulvinar.
Lateral geniculate body
What are the two sensory-motor axonal loops, relayed by the thalamus, necessary for normal voluntary movement?
A. Cerebellar-rubro-thalamic-ponto-cerebellar loop
B. Cortiostriatal-pallidal-thalamic-cortical loop
