Cerebral Hemispheres Overview and Lobes Quiz

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What is the anatomical location of the pulvinar?

Middle third of the thalamus

Anterior third of the thalamus

Posterior third of the thalamus (correct)

Superior part of the thalamus

Which of the following is NOT a part of the outer arch of the limbic system?

Fornix (correct)

Parahippocampal gyrus

Cingulate gyrus

Uncus

Where is the body of the fornix located?

At the anterior wall of the lateral ventricle

At the roof of the third ventricle (correct)

At the floor of the occipital horn of the lateral ventricle

At the floor of the temporal horn of the lateral ventricle

What is the significance of the hippocampus in the limbic system?

All of the above Signup and view all the answers

What is the significance of the uncus in the limbic system?

All of the above Signup and view all the answers

What is the relationship between the hippocampus and the fornix in the limbic system?

The hippocampus is part of the middle arch, while the fornix is part of the inner arch Signup and view all the answers

Which commissural fibers connect the olfactory areas and pass through the anterior wall of the third ventricle?

Anterior commissure Signup and view all the answers

What is the location of the fibers that cross the splenium posterior to the occipital horn of the lateral ventricle?

Forceps major Signup and view all the answers

Which part of the basal ganglia is located in the lateral part at the level of the Sylvian fissure?

Putamen Signup and view all the answers

Which part of the caudate nucleus bulges into the lateral wall of the frontal horn of the lateral ventricle?

Head Signup and view all the answers

Which of the following is an early sign of middle cerebral artery (MCA) infarction?

Disappearance of the basal ganglia sign Signup and view all the answers

Where are the thalami located in relation to the third ventricle?

Ovoid structures along the side of the third ventricle Signup and view all the answers

What is the primary function of the internal capsule?

To serve as a major conduit for fibers to and from the cerebral cortex Signup and view all the answers

Which of the following is NOT a commissural fiber tract?

Corona radiata Signup and view all the answers

Which of the following fiber tracts connects the midbrain, thalamus, and hypothalamus?

Posterior commissure Signup and view all the answers

What is the function of the cingulum fasciculus?

To connect the frontal and temporal lobes within the same hemisphere Signup and view all the answers

Which of the following fiber tracts is the largest commissure connecting the two cerebral hemispheres?

Corpus callosum Signup and view all the answers

Which of the following fiber tracts connects the habenular nuclei?

Habenular commissure Signup and view all the answers

Which structure is located along the lateral surface of the brain?

Sylvian fissure Signup and view all the answers

What is the function of the precentral and postcentral gyri?

Precentral gyrus is involved in motor function, and postcentral gyrus is involved in sensory function Signup and view all the answers

Which structure is located beneath the Sylvian fissure?

Temporal lobe Signup and view all the answers

What is the significance of the insular ribbon sign?

It is an early sign of middle cerebral artery (MCA) infarction Signup and view all the answers

Which structure overlies the cribriform plate and is the first gyrus in a paramidline location?

Gyrus rectus Signup and view all the answers

What is the significance of subfalcine herniation?

It involves the contralateral herniation of the cingulate gyrus Signup and view all the answers

Which structure is located between the anterior and posterior pituitary gland?

Infundibulum Signup and view all the answers

What is the significance of the bright signal at T1WI in the posterior pituitary gland?

It indicates the normal anatomy of the posterior pituitary gland Signup and view all the answers

What is the relationship between the cavernous sinus and the pituitary gland?

The cavernous sinus is a paired dural-lined venous sinus located adjacent to the pituitary gland. Signup and view all the answers

What is the significance of the sella turcica?

It is the roof of the sphenoid sinus, which houses the pituitary gland. Signup and view all the answers

What is the significance of the pineal gland in the pineal region?

It is an ovoid-shaped structure located below the internal cerebral veins. Signup and view all the answers

What is the importance of differentiating a pineal cyst from a velum interpositum cyst?

Pineal cysts are more common and have a different clinical significance than velum interpositum cysts. Signup and view all the answers