Adpatations

Question 1

What are 4 adaptations to the Muscle tendon junction?

Answer 1

1. Increased length + thickness of invaginations.
2. Increased fibre branching.
3. Increased collagen + structural protein content.
4. Increased cell proliferation.

Question 2

Why is interdigitation/folding a positive adaptation in the Muscle tendon junction?

Answer 2

• Increases surface area and so:
• Increases attachment strength.
• Increases force distribution.

Question 3

What are 2 adaptations in the tendon?

Answer 3

1. An increase in tendon cross-sectional area improves the capacity of the tendon.
2. Increases tendon stiffness.

Question 4

What 4 adaptations to organelles?

Answer 4

1. Increased number of myonuclei.
2. Increased number + size of mitochondria.
3. Increased ATP, glycogen, macromolecules, proteins + substrates in the sarcoplasm.
4. Enhanced calcium handling ability in the sarcoplasmic reticulum.