The hypothalamus is a region of the brain controlling many aspects of the endocrine system. It works closely with the pituitary gland. The hypothalamus is directly superior to the pituitary and is, therefore, .

A) the only region of the brain that is outside of the skull
B) inferior to the cribriform plate
C) superior to the sella turcica
D) superior to the crista galli

C) superior to the sella turcica

Explanation:

The hypothalamus is a very small part of the brain and is found at the base of the brain next to the pituitary gland and plays a crucial role in the many of the important functions.  It includes the release of the hormones and regulating the body temperatures and is responsible for the autonomous nervous system and controls the sleep and fatigue. The sella turcica is a depression at the spheroid bone which contains the pituitary gland and for s saddled shaped depression in the body and thus is inferior to the hypothalamus.

Six amino acids have side chains that are polar but not charged. these are serine (ser), threonine (thr), cysteine (cys), asparagine (asn), glutamine (gln), and tyrosine (tyr). these amino acids are usually found at the surface of proteins, as discussed in the proteins 2 module.