Brain Anatomy and Cerebrospinal Fluid Vocabulary

Vocabulary flashcards covering key terms and concepts related to brain anatomy, ventricles, cerebrospinal fluid, cerebral lobes, and functional cortices from the lecture.

Choroid plexus

Structures located within each of the brain's ventricles whose function is to produce cerebrospinal fluid.

Cerebrospinal fluid

Fluid produced deep inside brain ventricles that transports nutrients and waste products, flowing one way to the space between the brain and skull where it is absorbed.

Ventricles

Deep cavities within the brain where cerebrospinal fluid is formed and stored before flowing out.

Arachnoid villi

Structures in the tissue between the brain and the skull where cerebrospinal fluid gets absorbed.

Lateral ventricles

The two ventricles located in the left and right halves of the cerebral hemispheres.

Cerebral hemispheres

The largest region of the human brain, comprising approximately $83\%$ of the brain's total mass.

Gyri

The elevated ridges covering the surface of the brain.

Sulcus

A valley or groove on the surface of the brain, sometimes referred to as a fissure depending on its depth.

Longitudinal fissure

The deep groove or crack that separates the left hemisphere of the brain from the right hemisphere.

Central sulcus

The groove that separates the frontal lobe from the parietal lobe.

Lateral sulcus

The groove that separates the temporal lobe from the parietal lobe.

Insula

The fifth lobe of the brain, located on the inside deep within a crack to increase the brain's surface area.

Precentral gyrus

The gyrus located anterior to the central sulcus in the frontal lobe that serves as the primary motor cortex.

Postcentral gyrus

The gyrus located immediately posterior to the central sulcus in the parietal lobe that serves as the primary somatosensory cortex.

Primary motor cortex

The functional region located on the precentral gyrus responsible for sending motor impulses out to various body parts.

Primary somatosensory cortex

The functional region located on the postcentral gyrus responsible for receiving sensory information coming in from various body parts.