NS470 Lecture 15 - Thalamus & Internal Capsule

Which of the structures below is not a portion of the Diencephalon

• Cortical hemispheres

• Thalamus

• Hypothalamus

• Pineal Gland

Which of these structures are not matched with their related function?

• Pineal Gland - Regulation of circadian rhythms

• Habenula - Processing of limbic and motor information

• Thalamus - Relay center of the brain

• All are correct

Select the correct subdivisions of thalamic nuclei

• Association Nuclei

• Intralaminar Nuclei

• Relay Nuclei

• Midline Nuclei

• Cuneatus Nuclei

Why is the reticular nucleus of the thalamus so important?

• Filtering input to that thalamus via predominantly gaba-ergic neurons

• Receiving well-defined bundles of specific inputs and projection to the cortex

• Direct communication between the thalamus and cortex

• Regulation of mood

Select the thalamic nucleus that is incorrectly paired with its function/cortical region.

• Medial Geniculate - Somatosensory cortex

• Lateral Geniculate - Vision

• Anterior Dorsal - Limbic, cognition, affect

• All are correct

What imaging technique is being used here and what structures would be easily identified using it?

• Diffusion Tensor Imaging - Corpus Callosum

• Diffusion Tensor Imaging - Thalamic Nuclei

• Magnetic Resonance Imaging - Thalamic Nuclei

• Magnetic Resonance Imaging - Anterior Commissure

• Computerized Tomography - Corpus Callosum

Which arteries below supply blood to the thalamus?

• Posterior Communicating Artery

• Vertebral Artery

• Paramedian Artery

• Thalamogeniculate Artery

Which of the options below are among the main groups of thalamic subdivisions?

• Anterior

• Medial

• Intralaminar

• Lateral