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Physiology quiz 6

muscle/joint movement

QuestionAnswer
The opposite of dorsiflexion is: plantar flexion.
Rotator cuff surgery is performed quite commonly on professional baseball players, especially pitchers. Evidently, the throwing motion places enormous stress on the: shoulder.
During which phase of the twitch contraction is there a triggering of the release of calcium ions into the sarcoplasm? Latent period
Which type of muscle does not have T-tubules? Smooth
An example of a pivot joint is(are) the: head of the radius articulating with the ulna.
All of the following are characteristics of smooth muscle except: thin and thick filaments are aligned in sarcomeres like skeletal muscles.
The lactate produced by anaerobic respiration is converted back to glucose in the: liver.
Which of the following is not a part of the neuromuscular junction? T-tubules Motor neuron Motor end plate
What are the most movable joints in the body? Synovial
Attempting to pick up an object too heavy to lift would result in which type of muscle contraction? Isometric
Which of the following is not one of the major functions of muscles? Protection
A contraction in which the tension within the muscle remains the same but the length changes is called a(n) _____ contraction. isotonic
White fibers are also called _____ fibers. fast
Which type of joint joins the two pubic bones together? Symphysis
Stretching the foot down and back and pointing the toe is called: plantar flexion.
The substance that attracts oxygen in the myoglobin molecule is: iron.
Moving a part of the body forward is: protraction
Muscle contractions will continue as long as: the calcium ions are attached to the troponin.
Which of the following statements about cardiac muscle is incorrect? Cardiac muscle requires nervous stimulation to contract.
Skeletal muscles are innervated by: somatic motor neurons.
Which of the following proteins found in myofilaments contains the cross-bridges? Myosin
Which structure functions to temporarily store calcium ions? Sarcoplasmic reticulum
In the structure called a triad, the T-tubule is sandwiched between: sacs of sarcoplasmic reticulum.
The knee joint is an example of a _____ joint. hinge
The ability of muscle cells to respond to nerve stimuli is called: irritability.
The first event to occur in muscle relaxation is that: the sarcoplasmic reticulum begins actively pumping calcium back into its sacs.
Endurance training is also known as: aerobic training.
The opposite of eversion is: none of the above.
The type of movement possible at a synovial joint depends on the: shape of the articulating surfaces of the bones.
Thick myofilaments extend the length of the: A-band.
Cross-bridges are also called: myosin heads.
A gliding joint is an example of a(n) _____ joint. multiaxial
Aerobic respiration: produces the maximum amount of energy available from each glucose molecule.
Glucose can be stored in the muscle as: glycogen.
The chief function of the T-tubules is to: allow for electrical signals to move deeper into the cell.
Which type of muscle is responsible for peristalsis? Single-unit smooth
Tilting the foot upward, decreasing the angle between the top of the foot and the front of the leg, is called: dorsiflexion.
Which joint allows for a unique movement called opposition? Saddle
The purpose of creatine phosphate in muscle contraction is to: replenish energy supply.
In terms of function, which is considered an immovable joint? Synarthrosis
All of the following are true characteristics of an isometric contraction except: movement is produced.
Which of the following is an incorrect statement regarding heat production? The body temperature set point is established by the hypothalamus. Shivering will increase body temperature. Body temperature functions on a negative-feedback mechanism.
Kicking a football is accomplished by knee: extension.
An example of a hinge joint is(are) the: interphalangeal joints.
The ion necessary for cross-bridging is: calcium.
Created by: dljsapp
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