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AP75 Quiz 3.3
Anatomy & Physiology
| Question | Answer |
|---|---|
| Why is it important for a manual therapist to thoroughly understand the structures and functions of the muscular system? | Muscle pain and tension may be the most common reason people seek manual therapy treatments. |
| How does the muscular system help maintain body temperature? | Heat is generated as a byproduct of muscle contractions. |
| What is the name of the large central portion of a muscle? | Belly |
| What is the function of a tendon? | Connect muscle to bone |
| Which muscle attachment is usually on the non-moving bone during motion? | Origin |
| What fascial layer surrounds each skeletal muscle fiber? | Endomysium |
| The perimysium is a layer of fascia that surrounds a group of muscle fibers, dividing the muscle into several compartments called ___________. | fascicles |
| A skeletal muscle fiber, or muscle cell, is made up of smaller fibers called: | myofibrils |
| What type of muscle contraction increases muscle tension but does not create movement? | Isometric |
| What change occurs in the muscles during concentric contraction? | The muscle shortens |
| What change occurs in a muscle during an eccentric contraction? | Tension increases and muscle lengthens |
| What type of muscle contraction happens in the biceps brachii as you lower a barbell to the table? | Eccentric |
| What kind of contraction happens in the hamstrings when you bend your knees to climb stairs? | Concentric |
| Which method of energy production yields the highest amount of ATP? | Aerobic cellular metabolism |
| What is the KREBS cycle? | An aerobic metabolic process in which ATP is produced by converting pyruvic acid into carbon dioxide and water |
| What method of energy production creates lactic acid and the largest oxygen debt? | Anaerobic cellular metabolism |
| After a bout of extended exercise, the breathing rate remains elevated for the amount of time it takes to metabolize lactic acid, which is called: | repaying the oxygen debt |
| The physiologic processes that occur as the oxygen debt is paid back include: | metabolizing lactic acid and replenishing energy supplies |
| What class of lever are most joints in the body? | Third |
| A wheelbarrow and standing heel-raise exercises are examples of what class of lever? | Second |
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