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 bonesb)Smooth muscles contract and pull the tendons to move the bonesc)Skeletal muscles contract and pull the ligament to move the bonesd)Skeletal muscles contract and pull the tendon to move the bonesCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

The musculoskeletal system provides form, support, stability, and movement to the body. Though both skeletal and smooth muscles are part of the musculoskeletal system however, only the skeletal muscles can move the body. Skeletal muscles are striped, voluntary muscles, due to presence of alternate dark and light bands. They are called voluntary as they work according to our will. While doing work and running skeletal muscles contract and pull the tendon (which connects muscles to bones) to move the bone.

Answer

Answer:
To move your organs like hands and legs while doing work and running, skeletal muscles contract and pull the tendons to move the bones. Here is a detailed explanation:
Skeletal Muscles:
- Skeletal muscles are attached to the bones and allow voluntary movement of the body.
- They are responsible for movements such as walking, running, lifting, and pushing.
- Skeletal muscles are made up of long, cylindrical cells called muscle fibers.
Tendons:
- Tendons are strong, fibrous connective tissues that connect muscles to bones.
- They transmit the force generated by the muscle to the bones, allowing movement.
How Movement Occurs:
- When you want to move, your brain sends signals to the skeletal muscles.
- The skeletal muscles then contract, which means they shorten in length and generate force.
- This force is transmitted through the tendons to the bones, causing movement.
Example:
- When you run, your brain sends signals to the skeletal muscles in your legs.
- These muscles contract and pull on the tendons attached to the bones in your legs.
- The force generated by the muscles is transmitted through the tendons to the bones, allowing your legs to move and propel you forward.
So, in conclusion, skeletal muscles contract and pull the tendons to move the bones while doing work and running.

Answer

Explanation:

To understand the correct answer, let's first understand the different types of muscles involved in movement.

Skeletal Muscles:
Skeletal muscles are attached to the bones and are responsible for voluntary movements. These muscles are under our conscious control and contract to move our body parts. They are also known as striated muscles due to their striped appearance under a microscope.

Smooth Muscles:
Smooth muscles are found in the walls of our internal organs, such as the stomach, intestines, and blood vessels. They are responsible for involuntary movements and are not under our conscious control. These muscles contract and relax to control the movement of organs and substances within our body.

Tendons:
Tendons are tough, fibrous connective tissues that attach muscles to bones. They are responsible for transmitting the force produced by muscle contractions to the bones, resulting in movement.

Ligaments:
Ligaments are also fibrous connective tissues but they connect bones to other bones, providing stability and strength to joints.

Now, let's analyze the given options:

a) Smooth muscles contract and pull the ligament to move the bones:
This statement is incorrect because smooth muscles are not directly involved in moving bones. They primarily control the movement of internal organs.

b) Smooth muscles contract and pull the tendons to move the bones:
This statement is also incorrect because smooth muscles are not connected to bones via tendons.

c) Skeletal muscles contract and pull the ligament to move the bones:
This statement is incorrect because skeletal muscles do not directly pull the ligaments. Ligaments are responsible for stabilizing joints, not moving bones.

d) Skeletal muscles contract and pull the tendon to move the bones:
This statement is correct. Skeletal muscles are responsible for voluntary movements, and when they contract, they pull on the tendons attached to bones. The force generated by the muscle contraction is transmitted through the tendons, resulting in the movement of bones.

Therefore, the correct answer is option 'D' - Skeletal muscles contract and pull the tendon to move the bones.

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