Connective tissue wrappings & skeletal muscle anatomy Flashcards
1
Q
Epimysium
A
“Overcoat” of connective tissue over the entire muscle
2
Q
Fascicle
A
Grouping of muscle fibers
3
Q
Perimysium
A
Course fibrous membrane that wraps a bundle of muscle fibers
4
Q
Endomysium
A
Sheath that covers individual muscle fiber
5
Q
Sarcolemma
A
Another name for plasma membrane
6
Q
Sarcoplasm
A
The cytoplasm of a muscle fiber
7
Q
Myloglobin
A
Similar to hemoglobin; carries o2
8
Q
Myofibril
A
Ribbonlike organelles which nearly fill the cytoplasm
9
Q
H zone
A
Distance between two Z lines
10
Q
Thick filaments
A
Composed of myosin
11
Q
Thin Myofilaments
A
Composed of contractile protein called actin
12
Q
Elastic Myofilament
A
Molecular regulators of the contraction
13
Q
Sarcoplasmic Reticulum
A
SR for short: interconnecting tubules; includes terminal cisternae
14
Q
T Tubules
A
Passageways that allows transmission of action potential
