Muscle Structure Flashcards
0
Q
Myofilaments
A
Made of contractile protiens actin and myosin
1
Q
Muscle fibers
A
Elongated cells called fibers, inside fascile
2
Q
Sarcolemma
A
Cell membrane on the outside of muscle cell
3
Q
Sarcoplasm
A
Cytoplasm of muscle cells
4
Q
Epimysium
A
Connective tissue that wraps around the entire muscle bundle
5
Q
Fasicle
A
Bundle of muscle cells
6
Q
Perimysium
A
Connective tissue wrapping around fascicle
7
Q
Endomysium
A
Connective tissue wrapping around the muscle fiber
8
Q
Sacromere
A
Segment of a myofibril between 2 discs
9
Q
Myofibrils
A
Composed of myofilaments and is inside muscle fiber
10
Q
Actin
A
Thin myofilament
11
Q
Myosin
A
Thick myosin
12
Q
Sarcoplasmic reticulum
A
Surrounds each myofibrils, regulates the intercellular calcium levels
13
Q
T tubules
A
Transverse tubules, allows extracellular fluid to move throughout the fiber
