Frontal: The region of the face above the eyes, part of the skull.

Anatomy: The branch of science concerned with the bodily structure of humans, animals, and other living organisms.

Sternal: Relating to the sternum, the flat bone located in the center of the chest.

Metabolism: The set of life-sustaining chemical reactions in organisms.

Oral: Pertaining to the mouth.

Physiology: The branch of biology that deals with the normal functions of living organisms and their parts.

Homeostasis: The ability of an organism to maintain internal equilibrium by adjusting its physiological processes.

Histology: The microscopic study of tissue structure.

Occipital: The bone located at the back and base of the skull.

Axillary: Pertaining to the armpit area.