Question

A traffic policeman stretches out his arm to the right. During this movement (1M)

a) which of the muscle contract?

b) which of the muscle stretches(or relaxes)?

Answer 1

Answer:

One of the most “stretchable” of all muscle tissue in the body is the hamstrings muscle group on the back of the thigh: the biceps femoris, and the entertainingly named “semis,” semitendinosus and semimembranosus. We are well-built for hamstring stretching

With more expanded muscle fibers, you'll be able to lift more weights. Stretching can also help with decreasing DOMS which means that you can get back to the gym sooner. This results in stronger muscles and faster muscle growth.

Answer 2

Answer:

An antheridium is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). The plural form is antheridia, and a structure containing one or more antheridia is called an androecium.[1] Androecium is also the collective term for the stamens of flowering plants