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Cynthia Rawson-Set 1

Week 7: Assignment - Physiology Unit 6 Quiz

QuestionAnswer
The type of movement that occurs when the head is dropped to the shoulder, then to the chest, to the other shoulder, and toward the back is: circumduction.
Thick myofilaments extend the length of the: A-band.
Tilting the foot upward, decreasing the angle between the top of the foot and the front of the leg, is called: dorsiflexion.
Which type of muscle is responsible for peristalsis? Single-unit smooth
Which of the following is not one of the major functions of muscles? Protection
The knee joint is an example of a _____ joint. hinge
In the structure called a triad, the T-tubule is sandwiched between: sacs of sarcoplasmic reticulum.
Rotator cuff surgery is performed quite commonly on professional baseball players, especially pitchers. Evidently, the throwing motion places enormous stress on the: shoulder.
The ion necessary for cross-bridging is: calcium.
Which of the following proteins found in myofilaments contains the cross-bridges? Myosin
Which structure functions to temporarily store calcium ions? Sarcoplasmic reticulum
All of the following are noninflammatory joint disorders except: a) dislocation. b) juvenile rheumatoid arthritis. c) osteoarthritis. d) All of the above are noninflammatory joint disorders. juvenile rheumatoid arthritis.
Moving a part of the body forward is: protraction.
Which of the following is not an end-product of the breakdown of ATP? -An inorganic phosphate -Energy that can be used in muscle contraction -ADP -All of the above are end-products of the breakdown of ATP. All of the above are end-products of the breakdown of ATP.
White fibers are also called _____ fibers. -fast -slow -elongated -intermediate fast
The strength of a muscle contraction is influenced by the: -amount of load. -initial length of muscle fibers. -recruitment of motor units. -All of the above are correct. All of the above are correct.
A condyloid joint is an example of a(n) _____ joint. uniaxial biaxial multiaxial immovable biaxial
The lactate produced by anaerobic respiration is converted back to glucose in the: lungs. liver. mitochondria. sarcoplasmic reticulum. liver
The largest and most frequently injured joint is the: hip. knee. shoulder. ankle. knee
An example of a pivot joint is(are) the: head of the radius articulating with the ulna. first metacarpal articulating with the trapezium. humerus articulating with the scapula. interphalangeal joints. head of the radius articulating with the ulna.
The opposite of eversion is: protraction. depression. retraction. none of the above. none of the above.
Aerobic respiration: produces the maximum amount of energy available from each glucose molecule.
Most body movements are _____ contractions. isotonic isometric a combination of isotonic and isometric single twitch isotonic
The type of movement possible at a synovial joint depends on the: a) amount of synovial fluid in the joint. b) shape of the articulating surfaces of the bones. c) presence of bursae in the joint. d) Both A and B are correct. shape of the articulating surfaces of the bones.
Which type of joint joins the two pubic bones together? Suture Synovial Synchondrosis Symphysis Symphysis
The ability of muscle cells to respond to nerve stimuli is called: irritability. contractility. extensibility. elasticity. irritability.
The protein molecule that has heads jutting out for cross-bridging is: actin. myosin. troponin. tropomyosin. myosin.
Which type of muscle does not have T-tubules? Smooth Cardiac Striated All muscles have T-tubules. Smooth
Endurance training is also known as: isometrics. hypertrophy. aerobic training. strength training. aerobic training.
After it is released from the sarcoplasmic reticulum, the calcium combines with which protein? Troponin Actin Myosin Tropomyosin Troponin
Painful muscle contractions or involuntary twitches are called: tetanic contractions. cramps. convulsions. fibrillations. cramps.
Cross-bridges are also called: myosin heads. motor end plates. synapses. motor neurons. myosin heads.
The chief function of the T-tubules is to: provide nutrients to the muscle fiber. allow for the fiber to contract. allow for electrical signals to move deeper into the cell. allow for the generation of new muscle fibers. allow for electrical signals to move deeper into the cell.
Glucose can be stored in the muscle as: creatine phosphate. ATP. myoglobin. glycogen. glycogen.
An example of a hinge joint is(are) the: head of the radius articulating with the ulna. interphalangeal joints. first metacarpal articulating with the trapezium. head of the humerus articulating with the scapula. interphalangeal joints.
What are the most movable joints in the body? Symphyses Synovial Syndesmoses Synchondroses Synovial
Kicking a football is accomplished by knee: pronation. adduction. extension. flexion. extension.
Stretching the foot down and back and pointing the toe is called: plantar flexion. dorsiflexion. hyperextension. abduction. plantar flexion.
The purpose of creatine phosphate in muscle contraction is to: carry oxygen. store calcium. replenish energy supply. rotate the cross-bridges. replenish energy supply.
Created by: cynrawson
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