Mod. 5 Video 2 - Diencephalon Flashcards
The diencephalon is located between the cerebellum and the brainstem?
A. True
B. False
B. False
Explanation:
This statement is false the diencephalon is positioned between the cerebral hemispheres (cerebrum not cerebellum) and the brainstem.
Which of the following division of the diencephalon plays a role in the gating of information between the cortex and subcortical structures?
A. Thalamus
B. Hypothalamus
C. Subthalamus
D. Epithalamus
A. Thalamus
Explanation:
The thalamus (also known as the dorsal thalamus) plays an important role in all functions because it serves as a gateway to the cortex. Essentially all Information being conveyed between cortical and subcortical structures will pass through the thalamus.
Which of the following structures of the diencephalon will play a major role in the regulation of homeostatic functions?
A. Thalamus
B. Hypothalamus
C. Subthalamus
B. Hypothalamus
Explanation:
The hypothalamus plays a major role in the mediating the activity of the visceromotor, viscerosensory, and endocrine systems regulating key homeostatic functions.
A relay nucleus will receive information from multiple sources and project this information to multiple cortical areas.
A. True
B. False
B. False
Explanation:
This statement is false: relay nuclei receive information from one source, process the information and then send information to one localized region of the cortex. Conversely, association nuclei receive information from multiple sources, process that information and then projects information to multiple areas of cortex (association areas).
Which of the following nuclei are considered relay nuclei? Select all that apply.
A. ventral posterolateral
B. doromedial
C. lateral posterior
D. ventral lateral
E. ventral posteromedial
F. lateral geniculate body
A. Ventral posterolateral
D. ventral lateral
E. ventral posteromedial
F. lateral geniculate body
Explanation:
The relay nuclei include the: ventral posterolateral, ventral posteromedial, ventral anterior (not indicated above), ventral lateral, medial geniculate (not indicated above), lateral geniculate, and the anterior (not indicated above). The dorsomedial and lateral posterior are association nuclei.
Which of the following relay nuclei will receive somatosensory input from the contralateral face and project information to somatosensory cortex?
A. ventral posterolateral
B. ventral posteromedial
C. ventral anterior
D. medial geniculate
B. Ventral posteromedial
Explanation:
The ventral posteromedial nucleus will receive somatosensory information from the face and project it to somatosensory cortex (located in the parietal lobe).
The ventral posterolateral nucleus will receive somatosensory information from the body and project this information to somatosensory cortex.
The ventral anterior nucleus will receive information from the basal nuclei and project it to motor areas in the frontal lobe.
The medial geniculate body will receive information from the inferior colliculus and project this information to the primary auditory cortex in the temporal lobe.
