Cerebrum Section 3: White Matter

<p>Contralateral hemiplegia (D)</p> Signup and view all the answers

<p>Superior longitudinal bundle (C)</p> Signup and view all the answers

<p>Connect distant gyri in the same hemisphere (A)</p> Signup and view all the answers

<p>Hippocampus and mammillary body (D)</p> Signup and view all the answers

<p>Short associative fibers (A)</p> Signup and view all the answers

<p>Interconnect identical cortical areas of both hemispheres (C)</p> Signup and view all the answers

<p>Genu (B)</p> Signup and view all the answers

<p>They link the cerebral cortex to subcortical centers and the spinal cord (A)</p> Signup and view all the answers

<p>Corpus callosum (C)</p> Signup and view all the answers

<p>Body (A)</p> Signup and view all the answers

<p>Association fibers (B)</p> Signup and view all the answers

<p>It connects the posterior parts of the parietal, temporal, and occipital lobes (C)</p> Signup and view all the answers

<p>Projection fibers (B)</p> Signup and view all the answers

<p>It connects the olfactory regions of the two hemispheres. (A)</p> Signup and view all the answers

<p>Fibers connecting the occipital lobes (A)</p> Signup and view all the answers

<p>Medially to the thalamus and laterally to the lentiform nucleus. (A)</p> Signup and view all the answers

<p>Anterior limb (D)</p> Signup and view all the answers

<p>Projection fibers (B)</p> Signup and view all the answers

<p>Hippocampal commissure (A)</p> Signup and view all the answers

<p>Genu (D)</p> Signup and view all the answers

<p>Posterior commissure (C)</p> Signup and view all the answers

A dense collection of myelinated nerve fibers found within the cerebrum, essential for connecting different regions of the brain.

These fibers connect identical areas of the two cerebral hemispheres, allowing communication between the left and right sides of the brain.

These fibers connect the cerebral cortex to other brain regions like the thalamus, brainstem, and spinal cord, allowing for communication with the rest of the body.

These fibers connect different areas within the same hemisphere of the brain, enabling communication between different regions within the same half of the brain.

The largest commissure of the brain, forming a bridge between the two hemispheres, connecting the medial surfaces of the frontal, parietal, temporal, and occipital lobes.

This part of the corpus callosum curves forwards, connecting the anterior parts of the frontal lobes.

This is the main part of the corpus callosum, connecting the posterior parts of the frontal lobes and parietal lobes.

The posterior end of the corpus callosum, connecting the parietal, temporal, and occipital lobes of the two hemispheres.

A large, fork-like structure formed by fibers connecting the occipital lobes, located above the calcarine sulcus.

A small, rounded bundle of white fibers connecting the olfactory regions of the two hemispheres, located in the lamina terminalis.

A bundle of white fibers crossing the midline through the inferior lamina of the pineal gland stalk.

A bundle of white fibers crossing the midline through the superior lamina of the pineal gland stalk.

A bundle of white fibers interconnecting the crura of the fornix and hippocampi of the two hemispheres.

A compact bundle of projection fibers located between the thalamus and caudate nucleus (medially) and the lentiform nucleus (laterally).

The bend between the anterior and posterior limbs of the internal capsule, concavity facing laterally.

The anterior limb of the internal capsule contains fibers connecting the cerebral cortex to the pons, which are involved in controlling movement.

The genu of the internal capsule carries fibers connecting the cerebral cortex to the cranial nerve nuclei, controlling facial movements and speech.

The posterior limb of the internal capsule contains fibers connecting the cerebral cortex to the spinal cord, responsible for voluntary movement.

The anterior cerebral artery supplies blood to the anterior part of the anterior limb of the internal capsule. It is involved in leg movement.

The middle cerebral artery supplies blood to the posterior part of the anterior limb, the genu, and the posterior limb of the internal capsule. It is crucial for motor function.

The anterior choroidal artery supplies blood to the posterior part of the posterior limb, the sublentiform and retrolentiform parts. It's a branch of the internal carotid artery.

Damage to the internal capsule can result in loss of sensation and spastic paralysis on the opposite side of the body due to disruption of motor and sensory pathways.

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