Muscles A2 (mod 5) Flashcards
1
Q
What is the membrane of muscle fibres called?
A
Sarcolemma
2
Q
What does the sarcolemma fold inward to form?
A
Transverse t tubules
3
Q
Where is the sarcoplasmic reticulum found and what does it do?
A
Runs through the sarcoplasm of muscle fibres. It stores and releases calcium ions needed for muscle contraction
4
Q
What do myofibrils contain?
A
Thick (myosin) myofilaments and thin (actin) myofilaments
5
Q
What are myofibrils made up of?
A
Sarcomeres
6
Q
What type of muscles are striated?
A
Skeletal and Cardiac muscles
