Gross Structure and Function of muscle (S1)

Question 1

Where do muscles attach?

Answer 1

At their origin and insertion.

Origins are generally immovable, so like the anchor, where the muscle originates, generally medial and proximal. Insertions tend to be distal and lateral.

Question 2

What are aponeurosis?

Answer 2

Tendon like sheath, that gives stability.

Tendon collagen runs unilaterally, aponeurosis collagen runs in different directions.

Question 3

What are functions of tendons?

Answer 3

• Attach muscle to bone
• Allow muscle bulk to be situated away from its site of action
• Can withstand compression
• Allow muscles to pull ‘round corners’
• reserve energy/resist heat