Structure Of Skeletal Muscle

Structure Of Skeletal Muscle

Question 1: What is the difference between the fleshy and tendinous parts of a muscle.
Answer.

Differences Between Fleshy and Tendinous Parts of a Muscle

“The Role Of Sarcomeres And Myofibrils In Skeletal Muscle Contraction”

“Components Of Skeletal Muscle Anatomy”

“Best Ways To Understand Skeletal Muscle Structure”

Question 2: Write a short note on a tendon.
Answer.

Tendon :

• The tendon is silvery white, fibrous, cord-like part of the muscle, which connects the muscle to the bone. It is made up of parallel, dense, collagen fibres. The tendon transmits forces of muscular contraction to the bone. It is attached to the periosteum and through it to the cortical bone through Sharpey’s fibres.

“Importance Of Skeletal Muscle For Body Movement”

• The fibres of tendon are twisted or plaited so that the force of muscle pull is distributed to all the points at the site of insertion.
• The tendon is extremely powerful; for example, a tendon with cross-sectional area of 1 square inch can support a weight up to 9700–18,000 pounds.

When tendon is subjected to sudden accidental traction at its insertional end, it may cause avulsion/fracture of the bone without being ruptured itself. This shows tremendous power of the tendon.