A section that divides the body on the longitudinal plane into equal right and left parts is called:

Aristotle was in what major time period?

Ganglia excited by light arriving in the center of the sensory field are called

Olfactory nerves

The papillary constrictor and dilator muscles help to

The adrenals, pancreas, thyroid, and parathryoids are glands of the endocrine system.

In general, the nervous system does each of the following, EXCEPT

Most postganglionic sympathetic terminals release _____ and generally the effect is excitatory.

The thoracic cavity is separated from the abdominopelvic cavity by the diaphragm.

There is/are __________ type(s) of cones and __________ type(s) of rods.