Worksheetsmuscle quiz
Total questions: 35
Worksheet time: 18mins
Which action moves the superior part of the foot towards the shin?
Inversion
Eversion
Dorsiflexion
Plantar flexion
Which action points the toes away from the shin?
Inversion
Eversion
Dorsiflexion
Plantar flexion
Which action bends a joint, or decreases the angle between bones?
Circumduction
Rotation
Extension
Flexion
The triceps brachii straightens the forearm to increase the angle between the humerus and ulna. This is an example of
Circumduction
Rotation
Extension
Flexion
Which action is commonly done by the shoulder or hip joint, in which the proximal end of the limb is stationary and the distal end moves in a circle?
Circumduction
Rotation
Extension
Flexion
Which action moves a bone around its longitudinal axis, such as the radius moving around the ulna during supination or pronation?
Circumduction
Rotation
Extension
Flexion
Which action rotates the forearm laterally so that the palm faces anteriorly?
Supination
Pronation
Adduction
Abduction
Which action rotates the forearm medially so that the palm faces posteriorly?
Supination
Pronation
Adduction
Abduction
The pectoralis major draws the humerus towards the body's midline. This is an example of
Supination
Pronation
Adduction
Abduction
The deltoid moves the humerus away from the body's midline. This is an example of
Supination
Pronation
Adduction
Abduction
The biceps brachii flexes the forearm and the triceps brachii extends the forearm. The biceps brachii acts as a(n) _____ to the triceps brachii.
Prime Mover
Antagonist
Synergist
Fixator
The temporalis, along with the masseter, closes the jaw. The temporalis acts as a(n) _________ to the masseter.
Prime Mover
Antagonist
Synergist
Fixator
The masseter has the major responsibility for closing the jaw. The masseter is a
Prime Mover
Antagonist
Synergist
Fixator
Muscle responsible for raising the eye brows
Temporalis
Frontalis
Zygomaticus
Masseter
What two proteins are needed for muscle contraction in the human body?
tropin & tropymosin
actin $ Calcium
actin & myosin
ATP & Calcium
Your muscle fibers form large, string like bundles called?
Epimysium
perimysium
Myofibril
Fascicles
What are the two components that are needed to begin contraction?
Acytelcholine and Actin
Acytelcholine and myosin
ATP and Calcium ions
ATP and Sodium ions
What is the very first thing that needs to occur for a muscle contraction?
actin
myosin
Calcium
Action Potential by a nerve cell
Which of the following list of words would include the function of muscles?
movement, heat production, posture, contractility
movement, heat production, posture, excitability, contractility, extensiblity, elasticity
movement, blood formation, heat production
none of the above
What do you call the muscle attachment, where the muscle does not move when it contracts?
attachment
insertion
origin
none of the above
Actin is the ...
Thick Filament within a Muscle Fibre
Thin Filament within a Muscle Fibre
Protein that covers myosin-binding sites
Molecule that causes muscle contraction
Myosin is the ...
Thin Filament of a muscle fibre
Segment of a muscle fibre
A molecule that changes shape when bound with Calcium Ions
Thick Filament of a muscle fibre
True or False: Cross-bridges is when a myosin head attaches to an actin during contraction
True
False
What binds to the Myosin Head to cause it to detach from the Actin?
ATP
ADP
CNS
ETC
What causes the muscle to stop contracting?
Lack of effort
Myosin-Heads fail to attach
Calcium Ions are pumped away
Muscle fibre tears
Contractile unit of a muscle which is also the functional unit of a muscle is ...
sarcomere
motor unit
fascicle
myofibril
Calcium:
causes ATP binding to actin
increases the action potential along the sarcolemma
binds to proteins on myosin
triggers the binding of myosin to actin
What is a crossbridge?
Where myosin binds to actin
Where the calcium crosses into the cytoplasm
Where calcium binds with troponin
None of the answers are correct.
The energy needed to perform a muscle contraction comes directly from
ATP
Oxygen
Glucose
Calcium
The neurotransmitter stored in the axon terminal identified as #3
Calcium Ion (Ca2+)
Protein Channel
Acetylcholine
Synaptic Cleft
