The dark brown pigment that contributes to skin color is

The compound that is stored as an energy reserve for skeletal muscle contraction is

Neurotransmitters move across the synaptic cleft by means of

Effectors in the autonomic nervous system would include the:

The articulation that holds teeth firmly in their mandibular sockets is called a

The xiphoid process is part of the:

Most humans have _____ pairs of ribs.

Which of the following joints is a synarthrosis?

The dense connective tissue surrounding individual muscle fibers is the:

Fibrous connective sheaths that connect bones are