A&P - Chapter 15 (Part 2) Flashcards
1
Q
What system do muscle movements resemble?
A
Leaver and fulcrum
2
Q
What serves as leavers?
A
Bones
3
Q
What serves as fulcrums?
A
Joints
4
Q
What is movement caused by?
A
By the ability of muscle cells to shorten or contract
5
Q
What do all muscle fibres specialize in?
A
Contraction
- shortening
6
Q
How are muscles named? (4)
A
- Location, function, shape , direction of fibres
- Number of heads or divisions
- Points of attachment
- Relative size
7
Q
What are the 3 muscles of the thorax?
A
- External intercostals
- Internal intercostals
- Diaphragm
8
Q
What are the 3 direction muscles in the abdominal wall?
A
- Rectus
- Transverse
- Oblique
9
Q
What direction is rectus?
A
Upright
10
Q
What direction is transverse?
A
Across
11
Q
What direction is oblique?
A
On an angle
12
Q
What are the 5 muscles of the abdomen?
A
- External oblique
- Internal oblique
- Transversus abdominis
- Rectus abdominis
- Quadratus lumborum
13
Q
What do the muscles of the back generally do?
A
Bend or stabilize the back
14
Q
What are 4 muscles of the back?
A
- Sternocleidomastoid
- Trapezius
- Deltoid
- Latissimus dorsi
