Muscle comparison Flashcards
1
Q
Which types of muscle have thick and thin filaments?
A
- Skeletal muscle
- Smooth muscle
- Cardiac muscle
2
Q
Which types of muscle have sarcomeres?
A
- Skeletal muscle
* Cardiac muscle
3
Q
Which types of muscle have transverse tubules?
A
- Skeletal muscle
* Cardiac muscle
4
Q
Which types of muscle have a sarcoplasmic reticulum
A
- Skeletal muscle: ++++
- Smooth muscle: +
- Cardiac muscle: ++
5
Q
Which types of muscle have gap junctions between cells?
A
- Single unit smooth muscle
- Multi unit smooth muscle has few
- Cardiac muscle
6
Q
For each of the types of muscle, what is the source of ca2+?
A
- Skeletal: SR
- smooth muscle: SR and extracellular
- Cardiac: SR and extracellular
7
Q
For each type of muscle, what is the relative speed of contraction?
A
- Skeletal: Fast-slow
- Smooth: very slow
- Cardiac: Slow
8
Q
Which types of the muscle have spontaneous production of action potentials?
A
- Single unit smooth muscle
* Cardiac: in a few specialised cells, but most are not spontaneously active
9
Q
Which type of muscle contracts due to stretching of cells?
A
Single unit smooth muscle
