Muscles and Movements Quiz
Preview:
Movement of hand/foot so that the thumb/big toe moves away from the midline
A. inversion
B. eversion
C. adduction
D. abduction
Which types of movement are permitted by the elbow joint?
A. flexion and extension
B. abduction and adduction
C. rotation
D. all the above
Region where a motor neuron comes in close contact with a muscle cell.
A. neurotransmitter
B. muscular dystrophy
C. muscle tension
D. neuromuscular junction
Which types of movement are permitted by the hip joint?
A. flexion and extension
B. adduction and abduction
C. rotation
D. all the above
What is the name of the gap between two neurons?
A. Synapse
B. Dendrite
C. Axon
D. Cell body
Thin filaments in a myofibril are
A. Sarcomeres
B. Sarcoplasm
C. Actin
D. Myosin
Movement of arm/leg toward the midline
A. flexion
B. extension
C. adduction
D. abduction
Calcium:
A. causes ATP binding to actin
B. increases the action potential along the sarcolemma
C. binds to proteins on myosin
D. triggers the binding of myosin to actin
In the diagram of a motor unit, what is represented by the part labelled X?
A. Axon
B. Neuromuscular synapse
C. Nucleus
D. Dendrite
When actin is pulled past the myosin filament the..
A. Sarcomere shortens
B. Muscle shortens
C. Z line shortens
D. All of the above
___ and ___ are regulatory proteins bound to actin.
A. Troponin and tropomyosin
B. Myosin and actin
C. Calcium and Oxygen
D. Glycogen and hemoglobin
Movement to straighten a joint
A. extension
B. flexion
C. dorsiflexion
D. pronation
The organelle that contains actin and myosin.
A. Tendon
B. myofilament
C. myofibril
D. Fiber
Movement of the arm/leg away from the midline
A. adduction
B. eversion
C. inversion
D. abduction
Contractile unit of a muscle which is also the functional unit of a muscle is …
A. sarcomere
B. motor unit
C. fascicle
D. myofibril