Name 5. The type of skeletal muscles that have low fatigue resistance are 1. fas
ID: 3484199 • Letter: N
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Name 5. The type of skeletal muscles that have low fatigue resistance are 1. fast fibers 2. slow fibers 3. intermediate fibers 4. type I fibers 6· The complex known as the triad consists of: 1. actin, myosin, and myofilaments 2. one t-tubule between two terminal cisternae 3. one A band, one H band and one I band 4. myofilaments, myofibrils and sarcomeres 7. The most common functional role of the muscles of both the arm and the leg involves the action of: 1. adduction and abduction 2. flexion and extension 3. rotation and supination 4. pronation and supination 8. The manner in which a muscle fiber contracts is:: 1. little more with each stimulation 2. increasing in amount gradually and smoothly 3. all or none 4. dependent upon the rate of stimulation 9. Most of the muscles in the body are: 1. unipennate 2. bipennate 3. parallel 4. multipennate 10. Encircle the following which is not a muscle of facial expression? 1. buccinator b. frontalis c. masseter d. mentalisExplanation / Answer
5. The type of skeletal muscle fibres that have low fatigue resistance are - fast fibres. They undergo anaerobic oxidation and have low myoglobin content and capillary density which makes them have low fatigue resistance.
6. The complex known as triad consists of - one t-tubule between two terminal cisternae.
7. The most common functional role of the muscles of arms and legs involves the actions of - flexion and extension.
8. The manner in which a muscle fibre contracts is - increasing in amount gradually and smoothly. This is in accordance with Henneman's size principle, according to which, smaller muscle units are contracted first and when the load increases, gradually, larger muscle units are contracted.
9. Most of the muscles in the body are - parallel. Eg- biceps brachii, Sartorius, pectoralis major.
10. The muscle not involved in facial expressions is - masseter. Its function is to chew food.
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