Chapter 11 Quiz (100%) – Flashcards
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A muscle that inserts on the greater tubercle of the humerus is most likely involved in
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flexion.
extension.
*lateral rotation.
medial rotation.
abduction.
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Muscles that insert on the olecranon process of the ulna probably act to
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flex the forearm.
*extend the forearm.
abduct the forearm.
adduct the forearm.
extend the carpals.
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Which of the following muscles does not have an action that is antagonistic to the action of the brachialis muscle?
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triceps brachii lateral head
triceps brachii long head
triceps brachii medial head
*brachioradialis
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A muscle that assists the muscle that is primarily responsible for a given action is a(n)
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agonist.
antagonist.
*synergist.
originator.
levator.
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Muscles with fibers that run parallel to the long axis of the body are called
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lateralis.
transversus.
*rectus.
obliquus.
medialis.
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Each of the following terms is a descriptive term for a muscle's action, except
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levator.
pronator.
tensor.
*buccinator.
adductor.
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Each of the following terms is used to describe the shape of a muscle except
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pectinate.
pyriformis.
*pollicis.
splenius.
trapezius
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Which of the following muscles compresses the abdomen?
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diaphragm
internal intercostal
rectus abdominis
*transverse abdominis
transverse thoracis
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Which of the following is the insertion of the pectoralis minor?
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the vertebral border near the spine
*the coracoid process of the scapula
the mastoid region of the skull
the occipital bone of the skull
the clavicle and scapula
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Which of the following describes the action of the serratus anterior?
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adducts the arm
adducts and flexes the humerus
*protracts the shoulder, abducts and medially rotates the scapula
medial rotation of the humerus
lateral rotation of the humerus
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The muscle that adducts and rotates the scapula laterally is the
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*rhomboideus.
levator scapulae.
serratus anterior.
pectoralis minor.
subclavius.
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The major abductor muscle of the upper arm is the
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supraspinatus.
subscapularis.
*deltoid.
coracobrachialis.
teres major.
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The muscle that adducts and flexes the humerus is the
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*coracobrachialis.
deltoid.
trapezius.
latissimus dorsi.
triceps.
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Which of the following does not originate on the humerus?
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anconeus
brachialis
brachioradialis
*biceps brachii
both brachialis and brachioradialis
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The muscle that extends the arm while doing push-ups is the
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deltoid.
pectorals.
brachialis.
*triceps.
biceps.
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The muscle that pronates the forearm is the
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brachialis.
triceps brachii medial head.
*pronator quadratus.
anconeus.
latissimus dorsi
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The muscle that inserts on the iliotibial tract and gluteal tuberosity of the femur is the
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tensor fasciae latae.
piriformis.
gluteus minimus.
gluteus medius.
*gluteus maximus.
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Which of the following muscles acts to flex and adduct the thigh?
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gluteus medius
gluteus maximus
*pectineus
vastus medialis
popliteus
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The muscle that opposes the gastrocnemius is the
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peroneus.
extensor digitorum longus.
soleus.
tibialis posterior.
*tibialis anterior.
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The muscle that dorsiflexes the foot is the
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*tibialis anterior.
tibialis posterior.
peroneus brevis.
soleus.
gastrocnemius
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A general rule about the difference between an origin and an insertion is
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the origin moves while the insertion remains stationary.
each muscle begins and ends at the origin.
*the origin remains stationary while the insertion moves.
each muscle begins and ends at the insertion.
they have no effect on muscle movement.
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During abdominal surgery, the surgeon makes a cut through the muscle directly to the right of the linea alba. The muscle that is being cut would be the
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digastric.
external abdominal oblique.
*rectus abdominus.
scalenus.
splenius.
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Damage to which of the following muscles would interfere with the ability to breathe?
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sacrospinalis
rectus abdominis
*external intercostals
platysma
quadratus lumborum
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Each of the following muscles acts to adduct the thigh, except the
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pectineus.
iliacus.
psoas.
*obturator internus.
piriformis.
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Each of the following muscles acts to flex the leg, except the
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semimembranosus.
semitendinosus.
*vastus lateralis.
gracilis.
sartorius.
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The muscles that insert on the tibial tuberosity by way of the patellar ligament include all of the following, except the
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*vastus superiorus.
vastus intermedius.
vastus lateralis.
vastus medialis.
rectus femoris.
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Damage to the pectoralis major would interfere with a person's ability to
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extend the forearm.
abduct the humerus.
*adduct the humerus.
elevate the scapula.
rotate the elbow.
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Tom is having difficulty plantar flexing and inverting his right foot. Which muscle is most likely involved in this problem?
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tibialis anterior
*(soleus
gastrocnemius
flexor digitorum longus
extensor digitorum longus
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The preferred site for intramuscular (IM) injections in infants and children is the
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gluteus maximus.
gluteus minimus.
soleus.
*vastus lateralis.
deltoid.
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Which muscle increases the vertical dimension, and hence, the vertical volume of the thoracic cavity?
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internal intercostals
external intercostals
*diaphragm
internal oblique
external oblique
