Brain Structure and Function

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What type of brain tissue is primarily composed of myelinated axons?

Interneuron cell bodies

White matter (correct)

Gray matter

Cerebral nuclei

Which of the following fissures separates the cerebrum from the cerebellum?

Transverse Fissure (correct)

Central Sulcus

Lateral Fissure

Longitudinal Fissure

What is the function of the corpus callosum in the brain?

It separates the cerebrum from the cerebellum

It connects the two cerebral hemispheres (correct)

It divides the frontal lobe from the parietal lobe

It separates the two cerebral hemispheres

Which of the following brain structures has external sheets of gray matter called the cortex?

All of the above Signup and view all the answers

What is the term for the small grooves that divide the gyri in the brain?

Sulci Signup and view all the answers

What is the term for the ridges on the surface of the brain?

Gyri Signup and view all the answers

What is the primary function of the Medulla Oblongata?

Regulation of vital involuntary reflexes Signup and view all the answers

Which part of the brainstem serves important functions in motor movement, particularly movements of the eye, and in auditory and visual processing?

Midbrain Signup and view all the answers

What is the origin of several cranial nerves?

Pons Signup and view all the answers

What is the function of the Pons?

Interchange of information between cerebellum, cerebrum, midbrain, and spinal cord Signup and view all the answers

How many pairs of cranial nerves are attached to the brainstem?

12 Signup and view all the answers

What is the most caudal level of the brainstem?

Medulla Oblongata Signup and view all the answers

What percentage of the total body weight does the adult human brain account for?

2% Signup and view all the answers

What is the primary function of the brainstem?

Maintaining homeostasis Signup and view all the answers

What are the elevated ridges on the surface of the brain called?

Gyri Signup and view all the answers

Which of the following is NOT one of the three major structures of the brain?

Spinal Cord Signup and view all the answers

What is the function of the meninges?

To protect the brain from injury Signup and view all the answers

What is the purpose of the arachnoid membrane?

To suspend the brain in the cranial cavity Signup and view all the answers