Which of the following is NOT a derivative of cholesterol?

Briefly describe the main components of the cerebral anastomosing circle (of Willis).

Which of the following nerves typically supply sensation (GSA) to the area of the soft palate?

A blood pH of 7.6 ________.

Where is the bregma located; what is it?

A resident accidentally ligates (clamp off) the phrenic nerve instead of the accompanying artery. The mistake was immediately noticed, so no damage was done, but what structure did he mean to ligate?

Identify cranial nerve marked by the red circle/push pin on the image below. Provide both name [BLANK-1] and number [BLANK-2].

A lesion of cranial nerve VII involves which of the following symptoms?

You are evaluating a patient in your office for a suspected cranial nerve deficit. You touch your patient with a wisp of cotton on his cornea and he blinks. What two cranial nerves did you just test? Be sure to specify which is the efferent [BLANK-1] and afferent [BLANK-2] limb.

What type of cell signaling occurs through the extracellular matrix to nearby target cells?