Answer:
Step-by-step explanation:
1. extensor : a muscle serving to extend a bodily part
flexor muscle, any of the muscles that decrease the angle between bones on two sides of a joint, as in bending the elbow or knee
A myofibril is a basic rod-like organelle of a muscle cell.
the endometrium is the innermost lining layer of the uterus, and functions to prevent adhesions between the opposed walls of the myometrium
The epididymis is a long, coiled tube that stores sperm and transports it
The vas deferens, or ductus deferens, is part of the male reproductive system of many vertebrates.