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36 terms

Muscle

STUDY
PLAY
A muscle that controls the diameter of an opening is a ________ muscle
circular
A fan shaped muscle with a broad origin and fascicles that attach to a common site is a ________ muscle.
convergent
The most common lever systems in the body are those that have the applied force between the fulcrum and the load. These are called ________ levers.
third-class
Most of the skeletal muscles in the body are
parallel muscles.
Muscle fibers in skeletal muscle form bundles called ________.
fascicles
Muscles with fibers that run parallel to the long axis of the body are called
rectus.
A muscle that assists the muscle that is primarily responsible for a given action is a(n)
synergist.
Each of the following terms is a descriptive
term for a muscle's action, except? tensor.
pronator.
adductor.
sartorius.
levator.
sartorius.
Muscles located close to the midline of the body may be called
medialis.
The ________ covers the anterior surface of the neck.
platysma
Which of the following muscles compresses
the abdomen? internal oblique
external oblique
transverse abdominis
rectus abdominis
ALL
Muscles of the rotator cuff include all of the
following, except the supraspinatus.
subscapularis.
teres minor.
infraspinatus.
rhomboid.
rhomboid.
To keep the humeral head centered within the glenoidal cavity the rotator cuff muscles must be __________.
located in the same plane
The location of the rotator cuff muscles in relation to the glenohumoral joint minimizes the upward pressure against the __________.
acromion of the scapula
Watch the animation, then answer the questions below.
teres major muscle
Downward dislocation of the humerus from the glenohumeral joint when carrying weight is prevented by the __________.
supraspinatus muscle
The angle of which muscle prevents the humeral head from sliding upward out of the joint as the arm is raised?
subscapularis
Which of the following is a wrist flexor?
palmaris longus muscle
The muscle that extends the arm while doing push-ups is the
triceps.
To allow for flexion, the __________ unlocks the knee joint.
popliteus
Which of these muscles is a member of the
quadriceps group? vastus intermedius
vastus lateralis
rectus femoris
vastus medialis
ALL
Which of the following is an example of a convergent muscle?
pectoralis major
Which statement regarding third-class levers is false?
The load is located between the applied force and the fulcrum.
Which of the following muscle terms indicates a "bandage" shape?
splenius
Which muscle term indicates a muscle whose contraction is chiefly responsible for producing a particular movement?
agonist
Which of the following muscles is one that arises on the axial skeleton?
sternocleidomastoid
Which of the following muscles moves the nose, and changes the shape and position of the nostrils?
procerus
Which of the following muscles does not act to depress the hyoid bone and larynx?
thyrohyoid
Which muscle is a spinal flexor whose insertion is the base of the occipital bone?
longus capitis
Which muscle(s) of the rectus group insert(s) on a central tendinous sheath, and act(s) to expand the thoracic cavity, as well as compress the abdominopelvic cavity?
diaphragm
The pelvic diaphragm does not include which muscle?
deep transverse perineal
Which of the following muscles of the pectoral girdle acts to adduct the scapula and perform downward rotation?
rhomboid major
Which muscle of the forearm is not an elbow flexor?
anconeus
The superior pubic ramus is the origin of which adductor?
pectineus
Plantar flexion is a function of which of the following muscles?
soleus
The vastus lateralis is found in which muscle compartment?
anterior