Muscle Tissue Flashcards
1
Q
Function of muscle tissue
A
- excitable, can respond to stimulus
- contractile: shorten and generate a force
- allow movement
2
Q
Types of muscles
A
- cardiac muscle
- smooth muscle
- skeletal muscle
3
Q
Voluntary Muscles
A
- skeletal
4
Q
Involuntary muscles
A
- cardiac
- smooth
5
Q
Skeletal muscle structure
A
- long cylindrical fiber
- striated
- lots of nuclei
6
Q
Skeletal muscle function
A
- voluntary movement: locomotion, facial expression, posture
- produces heat
- protects organs
7
Q
Skeletal muscle location
A
- attach to bones
- around entrance points of body
8
Q
Cardiac Muscle Structure
A
- Short
- branched
- striated
- one nucleus
9
Q
Cardiac Muscle Function
A
- Contacts to move blood in heart
10
Q
Cardiac muscle location
A
- Heart
11
Q
Smooth Muscle Structure
A
- Short
- spindle-like
- no striations
- one nucleus
12
Q
Smooth muscle function
A
- involuntary movement of materials (including food)
- air during respiration
- secretions
- flow of blood in blood vessels
13
Q
Smooth muscle location
A
- walls of major organs (digestive, urinary, reproductive systems)
- passageways
14
Q
Striations
A
- due to alternation of contractile proteins to connective tissue
15
Q
multinucleated
A
- many nuclei
- from fusion of myoblasts that fuse to form long muscle fiber
