Question

While doing work and running, you move your organs like hands, legs, etc. Which among the following is correct?
(a) Smooth muscles contract and pull the ligament to move the bones.
(b) Smooth muscles contract and pull the tendons to move the bones.
(c) Skeletal muscle contracts and pulls the ligament to move the bones.
(d) Skeletal muscle contracts and pulls the tendons to move the bones.

Answer 1

Muscles are an important structure found in the human body system that helps in providing movement and give support to the bone. The movement occurs in muscles through contraction and relaxation. They are of various types based on their structure and function.

Complete answer
skeletal muscle is a high group of organized tissue that helps in the conversion of chemical energy to physical energy. The main function of skeletal muscle is locomotion, posture, and respiration by the process of muscle contraction when they generate force. When we have control over the movements of the muscles then those muscles are called the voluntary muscles. They are under the control of humans as they move only when the brain sends signals to the body in the form of nerve impulses.
The muscles undergo contraction for the fast and strong movements, the contraction helps the muscles to stretch and the muscles after contraction will again come to their original position and shape.
Skeletal muscles are the muscle types that are a form of striated muscle tissues that are voluntary under the control of the somatic nervous system. They are attached to the bones by a bundle of collagen fibers which are known as tendons and are multiple bundles of cells joined together. These are known as muscle fibers which are surrounded by a connective tissue layer known as fasciae. They are composed of myofibrils which constitute actin and myosin filaments in repeated units known as sarcomeres which are the basic units of muscle fiber.

So, the correct answer is ‘Skeletal muscle contracts and pulls the tendons to move the bones’.

Note:
Mainly living organisms show three types of the movement known as amoeboid, ciliary, and muscular. The activity of various systems including the skeletal system, muscles system, and nervous system in the case of the animals must be coordinated so that the animals may undergo locomotion. Muscle fibers are made of Microfibrils which in turn are composed of Sarcomeres, which is the reason for the basic functioning of muscle i.e muscle contraction.