Question

Flexion of thigh, knee and their rotation is facilitated by
A) Biceps muscles
B) Triceps muscles
C) Sartorius’s muscles
D) Shank

Answer 1

Hint: Flexion on the muscles is brought about by the flexor muscles which are located in different regions of our body. These muscles decrease the angle between the bones on two sides of the joint and helps in bending. For example, elbows, knees.

Complete answer:
Muscles are the tissues that bring about movement. They facilitate contraction due to which the movement occurs. There are several muscles that bring about several types of movement in our body. The muscles consist of fibres that bring about contraction and facilitate movement. One such movement in our body is called the flexion movement. In this movement, the flexor muscles are present which helps in bringing about the bending movement in the thigh and knees.

The sartorius muscle is the kind of flexor muscle that is present in the thigh and knee. These are the longest muscles present on the inside of our body. This muscle helps in flexion movement of hips and knees by bringing about lateral rotation and thigh abduction. This movement helps in crossed leg position.

Biceps muscles- These muscles are present in the front part of the upper arm. It crossed the shoulder and the joints present in the elbow. It helps in bringing about flexion movement in the elbow.

Triceps muscles-These are the large muscles present at the back of the upper limb. These muscles are the extension muscles that help in bringing about the straightening of the upper limbs.

Shank- It is the part of the leg between the knee and the ankle. It acts as a plantar muscle that controls the movement of the digits.

Therefore the correct answer is option ‘C’.

Note: Extension is another kind of movement in the muscles which helps in increasing the angle between two bones. They straighten the bend. For example, the triceps and the anconeus muscles help in the extension of the elbow.