Anatomy of the Basal Ganglia

What is the structure that separates the two masses of grey matter in the striatum?

Internal capsule

What is the functional difference between the striatum and the pallidum?

The striatum is structurally part of the corpus striatum, while the pallidum is functionally distinct

What is the primary function of the basal ganglia in motor regulation?

Regulation and integration of voluntary motor activity

What is the result of an imbalance in activity in the direct and indirect pathways of the basal ganglia?

Disorders of the basal ganglia Signup and view all the answers

What is the role of the globus pallidus in the corpus striatum?

Modulation of inhibitory effects Signup and view all the answers

What is the primary function of the subthalamic nucleus in the basal ganglia?

Regulation of the pallidum Signup and view all the answers

What is the result of abnormalities in the basal ganglia?

Movement disorders, such as Parkinson and Huntington diseases Signup and view all the answers

Which structure is not considered part of the basal ganglia?

Thalamus Signup and view all the answers

What is the function of the basal ganglia in movement regulation?

Enabling desired movements and inhibiting competing non-intended movements Signup and view all the answers

Which part of the corpus striatum is wedge-shaped and consists of several segments?

Lentiform nucleus Signup and view all the answers

Which part of the basal ganglia is divided into head, body, and tail?

Caudate nucleus Signup and view all the answers

The substantia nigra is part of which brain region?

Midbrain Signup and view all the answers

Which component is collectively referred to as the striatum?

Caudate nucleus and putamen Signup and view all the answers

What is the primary characteristic of the striatum's appearance?

Striped Signup and view all the answers

Which component of the basal ganglia is found in the diencephalon?

Subthalamic nucleus Signup and view all the answers