Chapter 10 Muscle Review

25 July 2022
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question
A pair of tweezers is a good example of which class of lever?
A pair of tweezers is a good example of which class of lever?
answer
3rd class
question
A wheelbarrow is a good example of which class of lever?
A wheelbarrow is a good example of which class of lever?
answer
2nd class
question
A pair of scissors is a good example of which class of lever?
A pair of scissors is a good example of which class of lever?
answer
1st class
question
Which kite shapes muscle pair stabilizes, raises, retracts, and rotates the scapulae?
Which kite shapes muscle pair stabilizes, raises, retracts, and rotates the scapulae?
answer
trapezius
question
Which group of muscles draws the ribs together and depresses the rib cage; aids in expiration
Which group of muscles draws the ribs together and depresses the rib cage; aids in expiration
answer
internal intercostals
question
Which group of muscles expands the rib cage and aids in inhalation?
Which group of muscles expands the rib cage and aids in inhalation?
answer
external intercostals
question
The terms parallel, convergent, circular, and pennate refer to what?
answer
the fascicle patterns that muscles can take.
question
In the human body, where does the effort come from?
answer
muscles
question
In the human body, where is the fulcrum found?
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joints
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What is the main factor that determines the power of a muscle?
answer
The total number of muscle fibers available for contraction.
question
Which type of fascicle pattern begins with a wide fan shape and converges towards a tendon?
Which type of fascicle pattern begins with a wide fan shape and converges towards a tendon?
answer
convergent
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What is the movable attachment of muscle to bone or other connective tissue called?
answer
the insertion
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What is the immovable attachment site of a muscle called?
answer
the origin
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muscles that contract together and are coordinated in producing a particular movement are called?
answer
synergists
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What is a muscle that reverses and opposes the action of another muscle called
answer
the antagonist
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What is a muscle that holds a bone firmly in place during contraction called?
answer
a fixator
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What are muscles often found at the openings of the body called?
answer
circular muscles or sphincters
question
List the muscles that make up the rotator cuff
answer
subscapularis, supraspinatus, infraspinatus, teres minor
question
List the muscles that make up the hamstring group
answer
biceps femoris, semimembranosus, semitendinosus
question
List the muscles of the quadriceps group
answer
rectus femoris, vastus lateralis, vastus medialis, vastus intermedius
question
which muscle is the prime mover for chewing?
which muscle is the prime mover for chewing?
answer
masseter
question
Which group of muscles provides support for the loosely built shoulder joint?
answer
the rotator cuff
question
which muscles produce horizontal wrinkles in the forehead?
which muscles produce horizontal wrinkles in the forehead?
answer
frontalis or frontal belly
question
Which muscles raise your upper lip?
Which muscles raise your upper lip?
answer
levator labii superioris
question
What is the muscle that provides the major force for producing a specific movement called?
answer
prime mover or agonist
question
Which muscles have a serrated or sawtooth appearance, protracts and rotates the scapula forward?
Which muscles have a serrated or sawtooth appearance, protracts and rotates the scapula forward?
answer
serratus anterior
question
If a bratty, little kid sticks his tongue out at you, which muscle is he using?
If a bratty, little kid sticks his tongue out at you, which muscle is he using?
answer
genioglossus
question
when the term biceps, triceps, or quadriceps forms part of a muscle name, what does it tell you about the muscle?
answer
that the muscle has 2, 3, or 4 origins
question
Which muscle is the prime mover for plantar flexion?
Which muscle is the prime mover for plantar flexion?
answer
gastrocnemius
question
Which muscle is a synergist for plantar flexion?
Which muscle is a synergist for plantar flexion?
answer
soleus
question
Which muscle is an unpaired prime mover for inspiration?
Which muscle is an unpaired prime mover for inspiration?
answer
diaphragm
question
Which muscle is a prime mover for abducting humerus?
Which muscle is a prime mover for abducting humerus?
answer
deltoid
question
Which muscle compresses the abdomen and flexes the spine?
Which muscle compresses the abdomen and flexes the spine?
answer
rectus abdominus
question
Which muscle extends the elbow?
Which muscle extends the elbow?
answer
triceps brachii
question
Which muscle adducts the wrist?
Which muscle adducts the wrist?
answer
flexor carpi ulnaris
question
Which muscle closes the eye?
Which muscle closes the eye?
answer
orbicularis occuli
question
What is the largest of the butt muscles?
What is the largest of the butt muscles?
answer
gluteus maximus
question
List the muscles that adduct the leg.
answer
adductor brevis, adductor magnus, adductor longus, gracilis
question
Which muscle extends the thigh (lifts the leg up behind you) as in an arabesque?
Which muscle extends the thigh (lifts the leg up behind you) as in an arabesque?
answer
gluteus maximus
question
Which group of muscles allow you to bring your legs together towards the midline of the body?
answer
adductors
question
Which group of muscles allow you to sit up straight in a chair and promote posture?
Which group of muscles allow you to sit up straight in a chair and promote posture?
answer
erector spinae
question
Which muscles make up the erector spinae group?
answer
iliocostalis, longissmus, spinalis
question
Which muscle allows you to put your chin to your chest during a forward roll (summersault)
Which muscle allows you to put your chin to your chest during a forward roll (summersault)
answer
sternocleidomastoid (SCM)
question
Which muscle is used when you do a wide arm pull up?
Which muscle is used when you do a wide arm pull up?
answer
latissimus dorsi
question
Which group of muscles is put under stress when performing activities such as swimming or pitching a ball?
answer
rotator cuff
question
Which muscle is involved in crossing one leg over the other while in a sitting position?
Which muscle is involved in crossing one leg over the other while in a sitting position?
answer
sartorius
question
What does it mean if a load is far from the fulcrum and the effort is applied in between the fulcrum and the load?
answer
The lever is at a mechanical disadvantage or is a speed lever.
question
A muscle group that works with and assists the action of a prime mover is a(n)
answer
synergist
question
A nursing infant develops a powerful sucking muscle that adults use when whistling. What is this muscle?
A nursing infant develops a powerful sucking muscle that adults use when whistling. What is this muscle?
answer
buccinator
question
What fascicle pattern looks like a feather?
answer
pennate
question
which muscle assists with inspiration and expansion of the chest by elevating the first 2 ribs?
which muscle assists with inspiration and expansion of the chest by elevating the first 2 ribs?
answer
scalene
question
Which muscles depress the jaw?
Which muscles depress the jaw?
answer
digastric
question
Which muscles assist with chewing by making grinding motions of the jaw?
answer
medial and lateral pteragoids