M1 Muscular System Flashcards
(9 cards)
1
Q
What is the function of muscle cells
A
Convert chemical potential energy (atp) into kinetic energy
2
Q
3 types of muscle tissue
A
Smooth, cardiac, skeletal
3
Q
Smooth muscle cells
A
No lines, single nucleus, contract involuntary, found in walls or internal organs
4
Q
Cardiac muscle cells
A
Striated, tubular, branched
Single nucleus
Contract involuntarily
Found in walls of heart
5
Q
Skeletal muscle cells
A
Striated and tubular
Many nuclei
Contact voluntarily
Attached to bones
6
Q
Function of skeletal muscle
A
Supports, allows movement, maintains body temp, protection, stabilizes joints
7
Q
When muscles contract…
A
They shorten!
8
Q
What are myofilaments
A
Protein structures responsible for muscle contraction
9
Q
Two types of muscle contraction
A
Actin
Myosin
