|
The two heads of the biceps brachii combine to insert on the __________. |
radial tuberosity |
|
The brachioradialis is a strong forearm __________. |
flexor |
|
The deltoid muscle fibers are separated into __________. |
anterior, middle, and posterior |
|
The middle fibers of the deltoid muscle __________. |
abduct the arm |
|
The infraspinatus inserts on the ____________ of the humerus. |
greater tubercle of the humerus |
|
The infraspinatus muscle is included in the __________ muscles. |
rotator cuff |
|
The latissimus dorsi inserts __________. |
on the intertubercular groove of the humerus |
|
One of the actions of the latissimus dorsi muscle is to __________. |
adduct the arm |
|
The origins of the levator scapula are from the ___________ of four cervical vertebrae. |
transverse processes |
|
The entire length of longissimus muscle extends from the mastoid process of the temporal bone to the __________. |
sacrum |
|
The muscle that generates the most power during elbow flexion is the __________. |
brachialis |
|
The prime mover of elbow extension is the __________. |
triceps brachii |
|
The __________ is a prime mover of the glenohumeral joint during flexion. |
deltoid |
|
Which of the following muscles assists during extension of the glenohumeral joint, but is not as a prime mover? |
teres major |
|
Without lateral rotation of the humerus by the teres minor and infraspinatus muscles, the maximum angle of abduction by the deltoid would be __________. |
90 degrees |
|
Abduction requires the action of two muscles, and adduction requires the action of __________. |
four muscles |
|
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 |
|
The action that moves the scapula towards the head is called __________. |
elevation |
|
Which movement results after the contraction of the serratus anterior muscle? |
scapular protraction and rotation |
|
Which movement is not associated with the scapula? |
opposition |
|
At the grocery store a cute, little curly-haired child is standing behind you in line. You turn around for a moment and she sticks her tongue out at you. Which tongue muscle did she use? |
genioglossus |
|
________ is a powerful forearm extensor. |
Triceps brachii |
|
Which of the following is NOT a rotator cuff muscle? |
teres major |
|
The teres major adducts the arm but does not __________ the arm. |
abduct |
|
The insertion of the teres minor is on the __________. |
greater tubercle of the humerus |
|
The insertion of the supraspinatus muscle is on the __________. |
greater tubercle of the humerus |
|
The subscapularis muscle inserts on the __________. |
lesser tubercle of the humerus |
|
Acting bilaterally, the splenius capitis __________. |
extends the head |
|
The least variable of the different parts of the spinalis muscle is the __________. |
spinalis thoracis |
|
The insertions of the semispinatus capitus are on the __________. |
occipital bone |
|
The actions of the rhomboid major on the scapula do not include __________. |
lateral rotation |
|
Which muscle is not part of the rotator cuff? |
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 |
|
Both heads of the biceps femoris muscle __________. |
flex the leg at the knee |
|
The long head of the biceps femoris muscle originates on the __________. |
ischial tuberosity |
|
The biceps femoris is located in the __________. |
posterior thigh |
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The origins of the lateral head of the gastrocnemius muscle are the __________. |
lateral condyle and posterior surface of the femur |
|
The gastrocnemius muscle is innervated by the __________. |
tibial nerve |
|
The two heads of the gastrocnemius muscle converge to insert onto __________. |
the calcaneus |
|
The majority of the fibers of the gluteus maximus insert onto the __________. |
ileotibial tract |
|
The gluteus maximus is the most powerful muscle during __________. |
extension |
|
To allow for flexion, the __________ unlocks the knee joint. |
popliteus |
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