Location of sperm production –

Part of a neuron that transmits the impulse away from the cell body –

Chamber of the heart that pumps blood out through the aorta-

Microscopic functional unit of the urinary system –

Blood vessel which supply oxygen to the heart itself –

Sperm cells mature and are stored in the

This is a muscle attachment that remains stationary during the muscle action –

Type of muscle tissue that is involuntary –

Blood vessels that are the site of diffusion of gases, nutrients, and wastes –

Another name for skin –