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Ch. 8 Muscules
| Question | Answer |
|---|---|
| What is the amount of oxygen needed to support the conversion of lactic acid to glucose and ADP to ATP? | Oxygen Debt |
| What happens when there is a lack of Oxygen to form ATP which is needed to remove the Calcium back to the sarcoplasmic reticulum and release the actin and myosin? | Muscle cramp |
| Which muscles elevate the eyebrows? | frontalis and occipitalis |
| Which muscles help with situps? | external obliques and rectus abdominus |
| Which muscle makes you smile? | zygomaticus |
| Which muscle compresses your cheeks to help you blow up a balloon or play a wind instrument? | buccinator |
| Which muscle closes your eyelids for winking and blinking? | orbicularis oculi |
| Which muscles are considered the hamstrings? | semitendonosis and semimembraneosis |
| Which muscles extend the leg at the knee? | rectus femoris, vastus lateralis, and vastus medialis |
| Which muscle helps you to pucker up? | orbicularis oris |
| Which muscle helps you to hold your humerous in place? | infrapinatus |
| What are the functions of the muscular system? | movement, peristalsis, vasodilation/vasoconstriction, heart pumping, heat |
| What is the rhythmic, wavelike motion produced by smooth muscles in tubular visceral organs? | peristalsis |
| What are the characteristics of smooth muscle contractions? | slower/longer, more hormones, inhibit and stimulate, stretch with out pressure loss, involuntary |
| What are the characteristics of cardiac muscle contractions? | only in heart, stores Ca differently, longer twitches, self exciting, rhythmic, involuntary |
| What are the characteristics of skeletal muscle contractions? | for movement, depends on joint and attachment, works as groups, voluntary |
| Define and explain muscle fatigue. | When a muscle loses its ability to contract during exercise due to buildup of lactic acid in the muscle. |
Created by:
ebickley
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