To stimulate muscle contraction, acetylcholine is released from the ___________ into the synaptic cleft.   

The structures that detects angular or circular movement are the

Athletes who train at high altitudes increase their red blood cell count and thus increase their oxygen supply during exercise. Increased oxygen supply results in:

Identify the muscles labeled C.

Identify the muscles labeled 3.

Identify the muscle labeled 1. 

Hearing and balance both rely on

Identify the muscle labeled 13.

Identify the muscle labeled 5.

This layer of the epidermis consists of up to 30 layers of dead cells.