Question

Which of the following structure/function relationships is/are CORRECT?

Epimysium/surrounds the whole muscle
Sarcoplasmic Reticulum/stores Ca
Endomysium/connects muscle to bone
T-tubule/conducts AP into the cell
Perimysium/surrounds fascicles
Z-discs/anchors sarcomeric proteins
a) 1, 2, 4
b) 3, 5, 6
c) 2, 4, 5
d) 1, 3, 6

Answer 1

The correct structure/function relationships are: Epimysium surrounds the whole muscle, Sarcoplasmic Reticulum stores Ca, T-tubule conducts AP into the cell.

Step-by-step explanation:

The correct structure/function relationships are:

1. Epimysium surrounds the whole muscle
2. Sarcoplasmic Reticulum stores Ca
3. T-tubule conducts AP into the cell

Epimysium is the connective tissue that surrounds the entire muscle, providing support and protection. Sarcoplasmic Reticulum is a specialized endoplasmic reticulum that stores and releases calcium ions important for muscle contractions. T-tubules are inward extensions of the sarcolemma that conduct action potentials into the cell.