IB SEHS Exam Review Questions With Correct Answers
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Course
IB SEHS
Institution
IB SEHS
IB SEHS Exam Review Questions With
Correct Answers
What type of muscle contraction involves no change in the muscle length - answerIsometric
Movement that increases the angle between articulating elements opening the joint -
answerextension
making circular movements - answercircumduction
musc...
BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
IB SEHS Exam Review Questions With
Correct Answers
What type of muscle contraction involves no change in the muscle length - answer✔✔Isometric
Movement that increases the angle between articulating elements opening the joint -
answer✔✔extension
making circular movements - answer✔✔circumduction
muscle that works opposite to return the joint to its original position - answer✔✔antagonist
pain and stiffness felt in muscles the next day after working out is caused from -
answer✔✔tearing of muscle fibers
which of the following treatment method would be best for DOMS - answer✔✔foam roller
which type of muscle contraction type is rare in sport - answer✔✔isokinetic
refers to muscle action in which the muscle force yields to the imposed load -
answer✔✔eccentric
which describes the movement of depression - answer✔✔movement at a joint in an inferior
direction
what is the opposite of supination - answer✔✔pronation
wrist going down is an example of what type of movement - answer✔✔flexion
arm coming down next to body is what type of movement - answer✔✔adduction
feet inverted to the left - answer✔✔eversion
foot inverted to the right - answer✔✔inversion
what pulls the actin filaments inwards to shorten a muscle - answer✔✔myosin
which part of the motor neuron is nearest to the muscle fibre it stimulates - answer✔✔motor end
plate
, BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
an action potential travels through the muscle fibers down the t-tubules, and stimulates the
sarcoplasmic reticulum to release what - answer✔✔calcium
shortening/lengthening of sarcomere. Z lines move closer, I Band, H Zone decrease -
answer✔✔contraction
attached to the myosin heads are a chemical called ___ that allows for the head to bend -
answer✔✔ATP
the neurotransmitters in the vesicle of the motor end plate that creates a "bridge" between the
neuron and the muscle fiber (across the synapse) the chemical that initiates a muscle contraction
opens channels in the t-tubules - answer✔✔acetylcholine
carries message from the central nervous system to the muscle fiber - answer✔✔axon
the area where there is both actin/myosin - answer✔✔A Band
due to high concentrations of calcium, Ca+ binds to _____ and causes a shift of tropomyosin
which prevents the blocking action of tropomyosin - answer✔✔Troponin
baseball and tennis would rely mostly on this type of muscle fiber - answer✔✔fast twitch
which type of muscle fibers are considered slow twitch fibers - answer✔✔I
which sport would benefit from the activity in training of short sprints with a break for 20-30
seconds over and over for an hour - answer✔✔football
volume of air breathed in and out in any one breath - answer✔✔tidal volume
volume of air in excess of tidal volume that can be exhaled forcibly - answer✔✔expiratory
reserve volume
inflow and outflow of air between the atmosphere and lungs - answer✔✔pulmonary ventilation
additional inspired air over and above tidal volume - answer✔✔inspiratory reserve volume
The volume of air in the lungs after a maximal inhalation - answer✔✔total lung capacity
volume of air still contained in the lungs after a maximal exhalation - answer✔✔residual volume
which of the following comprises the largest percentage of blood - answer✔✔plasma
which part of the heart can the SA Node be found in - answer✔✔right atrium
how is the vital capacity best defined - answer✔✔the maximum amount of air that a person can
expel from the lungs from a position of full inspiration
calculate the residual volume, in litres, for a person with a total lung volume of 6.0 L, a vital
capacity of 4.6L and expiratory reserve volume of 1.2L - answer✔✔1.4L
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