Muscle Cells Flashcards
1
Q
Muscles cells are surrounded by a cell membrane called the __________
A
Sarcolemma
2
Q
In the sarcoplasm of a muscle cell are many fibres called _________
A
Myofibril
3
Q
These fibres have a distinct pattern of banding because of how the _____ and ____ protein filaments are arranged
A
Thick
Thin
4
Q
The myofibrils are surrounded by a type of specialised endoplasmic reticulum called the ____________ _________
A
Sarcoplasmic Reticulum
5
Q
This stores _______ which is needed for muscle contractions
A
Calcium
6
Q
Muscle contraction also needs energy from ___
A
ATP
7
Q
This is made in the many ____________ inside the muscle cells
A
Mitochondria
8
Q
Many infoldings of the sarcolemma are called T-_______ are important in helping spread the nerve impulse quickly to all of the myofibrils
A
Tubules
