Question

Muscle tissue contraction is a response to _____.

a. low levels of melanin
b. signals from the nervous system
c. the integumentary system function
d. low levels of glycogen
e. neuroglial cells

Answer 1

B
It is signals from the nervous system indicating the muscle to contract

Answer 2

Answer: b. signals from the nervous system

Explanation: Muscle tissue contract as a result of signals receive form Central nervous system.

Muscle contraction are of different type as they cause changes in length and tension.

If the muscle length decrease it is called Concentric, if the muscle tension changes but the length remain constant it is called Isometric.

Muscles contraction can occur as result of pressure exert by load or object. Also, it may occur as a result of pressure or load on the muscles by an object or load.