Physiology Lab Exam Content

Gyri/gyrus

raised areas on the cerebrum cortex

Sulci/sulcus

grooves on the cerebrum cortex

longitudinal fissure

separates the cerebral cortical hemispheres from each other

Dura mater

the thick, tough, outermost white membrane surrounding the brain.

Pia mater

the innermost membrane. sits directly on the surface of the brain (not visible).

Arachnoid membrane

lies between the pia and dura maters. most easily visible by prying 2 gyri apart.

Subarachnoid space

Crisscrossed by web-like strands of connective tissue. not visible on sheep brain.

CSF

produced by the choroid plexus and ependymal cells. not visible on sheep brain

Choroid plexus

located inside the lateral ventricles, dark blackish red in the sheep brain. lateral ventricles have to do with circulating CSF

Pituitary gland

found on the ventral side of the brain, embedded in the dura mater. probably won’t be on the actual sheep brain itself.

Optic chiasm

a white x shaped structure that defines the anterior border of the hypothalamus

Optic tracts

the bottom part of the x of the optic chiasm. the top part of the x is cranial nerve II (optic)

Infundibulum

the small flap attached to the top of the pituitary gland that connects the pituitary gland to the hypothalamus

Olfactory bulbs

lies in the rostroventral portion of the cerebrum.

Olfactory tract

the linear extensions from the olfactory bulbs in the rostroventral portion of the cerebrum

Pyriform cortex