Types of Muscles Flashcards
1
Q
what are the three types of muscles
A
cardiac, skeletal and smooth
2
Q
what are the characteristics of cardiac muscle
A
- located in the heart
- involuntary (contracts subconsciously)
- striated (striped)
- good blood supply - non-fatiguing
3
Q
what are the characteristics of smooth muscle
A
- located in hollow organs and passageways
- slow contractions
- non-striated
- involuntary (acts subconsciously)
4
Q
what are the characteristics of skeletal muscle
A
- the most common type of muscle
- voluntary (requires conscious control to act)
- striated
- bundled
5
Q
what are the details of the skeletal muscle structure
A
- it’s attached to bone via a tendon
- muscle belly is the largest part of the muscle made up of muscle bundles (fascicles)
- muscle bundle is made up of muscle fibres
- muscle fibres are made up of myofibril
- myofibrils are made up of filaments
6
Q
what makes up the muscle belly
A
fascicles (muscle bundles)
7
Q
what makes up muscle bundles
A
muscle fibres
8
Q
what makes up muscle fibres
A
myofibrils
9
Q
what makes up myofibrils
A
filaments
10
Q
what is the radius of a muscle fibre called
A
endomysium
11
Q
what is the radius of a muscle bundle called
A
perimysium
