1. When looking at a microscope slide, cardiac muscle looks to be...
- 'Spindle' shaped
- Striated, branched, in rows and with dark areas known intercalated discs.
- Striated and multinucleated
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2. What is an 'intercalated disc'?
- Cell membranes in cardiac muscle.
- Obstructions in the bloodstream.
- A thick cardiac muscle fibre.
- Abnormally shaped (disc) nuclei
3. '____________' increases the heart's rate of contraction.
- Sympathetic stimulation
- Parasympathetic stimulation
- Atrial muscle
- Thin actin
4. What is peristalis?
- Muscles that move the joints
- Muscles that have delay reactions
- Muscle contractions that moves food along digestive tract.
- Muscles that are in the pelvic region
5. What does 'myogenic' mean?
- Able to stimulate a contractions without a nerve impulse
- Able to contract at the speed of light
- Can only be found in the feet
- Only contracts when there is a nerve impulse