Appendicular Muscles

Question 1

The trapezius’ five attachment sites include what?

Answer 1

Occipital bone, vertebrae, clavicle, scapular spine and acromion of scapula

Question 2

The upper fibers of the trapezius do what to the scapula?

Answer 2

Elevate and rotate scapula

Question 3

The lower fibers of the trapezius do what to the scapula?

Answer 3

Depress and rotate scapula

Question 3

The middle fibers of the trapezius do what to the scapula?

Answer 3

Retract scapula

Question 4

What are the two attachments for the serratus anterior?

Answer 4

Scapula and ribs

Question 5

What is the two functions of the serratus anterior?

Answer 5

Protracts and rotates scapula and holds scapula against the body wall

Question 6

What four muscles move the pectoral girdle?

Answer 6

Trapezius, serratus anterior, and the rhomboid major and minor

Question 7

What four muscles move the shoulder joint?

Answer 7

Deltoid, pectoralis major, latissimus dorsi, and teres major

Question 8

What are the four attachments for the pectoralis major?

Answer 8

Sternum, clavicle, ribs, and humerus

Question 9

What muscle flexes, adducts, and medially rotates the arm?

Answer 9

Pectoralis major

Question 10

What two muscles extend, adduct, and medially rotate the arm?

Answer 10

Latissimus dorsi and teres major

Question 11

What are the attachments for the latissimus dorsi?

Answer 11

Lower back and humerus

Question 12

What are the attachments for the teres major?

Answer 12

Scapula and humerus

Question 13

What are the four attachments for the deltoid?

Answer 13

Humerus, clavicle, and scapular spine and acromion of scapula

Question 14

The anterior fibers of the deltoid do what?

Answer 14

Flex and rotate the arm

Question 15

The middle fibers of the deltoid do what?

Answer 15

Abduct the arm

Question 16

The posterior fibers of the deltoid do what?

Answer 16

Extend and rotate the arm

Question 17

What are the two attachments for the supraspinatus muscle?

Answer 17

Supraspinous fossa of the scapula and greater tubercle of humerus

Question 18

What is the action of the supraspinatus muscle?

Answer 18

Abduct arm for the first 15 degrees

Question 19

What muscle medially rotates the arm and is attached to the subscapular fossa of the scapula and lesser tubercle of the humerus?

Answer 19

Subscapularis

Question 20

What are the two muscles that adduct and laterally rotate the arm that have attachments on the infraspinous fossa of scapula and greater tubercle of the humerus?

Answer 20

Teres minor and infraspinatus

Question 21

The anterior compartment of the arm all have what action in common?

Answer 21

Flexion

Question 21

What are the four muscles in the rotator cuff? Which one is typically injured?

Answer 21

Supraspinatus, infraspinatus, teres minor, and subscapularis with supraspinatus being typically injured

Question 22

What is the one muscle of the upper arm in the posterior compartment?

Answer 22

Triceps brachii

Question 23

What two muscles are deep to the biceps brachii?

Answer 23

Coracobrachialis and brachialis

Question 24

What muscle flexes the forearm and has the humerus and ulna as attachment sites?

Answer 24

Brachialis

Question 24

What muscle adducts and flexes the arm with the scapula and humerus as attachment sites?

Answer 24

Corocobrachialis

Question 25

What muscle flexes and supinates the forearm and has the scapula and radial tuberosity of radius as attachment sites?

Answer 25

Biceps brachii

Question 26

What muscle flexes the forearm and has the humerus and radius as attachment sites?

Answer 26

Brachioradialis

Question 26

The medial and lateral heads of what muscle extend the forearm and have the olecranon process of ulna and humerus as attachment sites?

Answer 26

Triceps brachii

Question 27

The long head of what muscle extends forearm and arm and has the scapula and olecranon process of ulna as attachment sites?

Answer 27

Triceps brachii

Question 28

What muscle is mainly located in the anterior compartment of the forearm but is still considered part of the arm?

Answer 28

Brachioradialis

Question 28

The flexor muscles of the upper arm flex the wrist and digits, along with having attachment sites at the wrist, digits, and medial epicondyle of the humerus and forearm. Which compartment is it?

Answer 28

Anterior compartment

Question 29

The extensor muscles of the upper arm extend the wrist and digits, along with having attachment sites at the wrist, digits, and lateral epicondyle of the humerus and forearm. Which compartment is it?

Answer 29

Posterior compartment

Question 29

What intrinsic muscle group of the hand moves the thumb and opposes the digits, with the wrist and pollex as attachment sites?

Answer 29

Thenar group

Question 30

Tennis elbow, or what occurs from overuse of the extensor muscles of the forearm?

Answer 30

Lateral epicondylitis

Question 30

What intrinsic muscle group of the hand abduct and adducts the digits with the 2nd-5th metacarpals and phalanges as attachment sites?

Answer 30

Interossei

Question 31

What intrinsic muscle group of the hand moves the fifth digit and opposes the thumb with the wrist and 5th digit as attachment sites?

Answer 31

Hypothenar group

Question 32

What muscle extends and laterally rotates the thigh with the ilium, sacrum, and femur as attachment sites?

Answer 32

Gluteus major

Question 32

What muscle is flexes and abducts the thigh and has the ilium and thigh as attachment sites?

Answer 32

Tensor fascia lata

Question 32

What muscle flexes the thigh and has the ilium, lumbar vertebrae, and femur as attachment sites?

Answer 32

Iliopsoas

Question 33

What two muscles abduct the thigh and have the ilium and femur as attachment sites?

Answer 33

Gluteus medius and minimus

Question 33

What tight bond of connective tissue/fascia stabilizes the thigh and trunk during walking and running?

Answer 33

Iliotibial band

Question 34

The five muscles in the anterior compartment of the thigh are what?

Answer 34

Rectus femoris, vastus medialis, vastus lateralis, vastus intermedius, and sartorius

Question 34

What four muscles are in the quadriceps femoris group?

Answer 34

Rectus femoris, vastus medialis, vastus lateralis, and vastus intermedius

Question 35

What muscle flexes the thigh and extends the leg with the ilium and tibia via patellar tendon as attachment sites?

Answer 35

Rectus femoris

Question 36

What three muscles extend the leg and have tibia via patellar tendon and femur as attachment sites?

Answer 36

Vastus intermedius, medialis, and lateralis

Question 36

What muscle is deep to the rectus femoris?

Answer 36

Vastus intermedius

Question 37

What muscle of the anterior compartment of the thigh does not extend the leg?

Answer 37

Sartorius

Question 38

What muscle flexes and laterally rotates the thigh and flexes the leg, with the ilium and tibia as attachment sites?

Answer 38

Sartorius

Question 38

What muscle is considered to be the tailor's muscle as it crosses the leg?

Answer 38

Sartorius

Question 39

What muscle extends the thigh and flexes the leg with the ischium, femur, and fibula as attachments?

Answer 39

Biceps femoris

Question 39

What three muscles make up the hamstring group and are also the posterior compartment of the thigh?

Answer 39

Biceps femoris, semitendinosus, and semimembranosus

Question 39

What two muscles extend the leg and flex the thigh with the ischium and tibia as attachments?

Answer 39

Semitendinosus and semimembranosus

Question 40

What three muscles are in the medial compartment of the thigh?

Answer 40

Gracilis, adductor magnus, and adductor longus

Question 40

What muscle adducts the thigh and has the pubis and femur as attachment sites?

Answer 40

Adductor longus

Question 41

What muscle extends and adducts the thigh with the pubis, ischium, and femur as attachment sites?

Answer 41

Adductor magnus

Question 41

Is the semitendinosus or semimembranosus deep to the other?

Answer 41

Semimembranosus

Question 42

What muscle flexes and adducts the thigh, as well as flexing the leg and with the pubis and tibia as attachments?

Answer 42

Gracilis

Question 43

What is the only muscle in the anterior compartment of the leg that dorsiflexes and inverts the foot with the tibia and dorsum of the foot as attachments?

Answer 43

Tibialis anterior

Question 44

What two muscles are in the lateral compartment of the leg that plantarflexes and everts the foot with fibula and the foot as attachments?

Answer 44

Fibularis longus and brevis

Question 45

What muscle flexes the leg and plantarflexes the foot with the femur and calcaneus as attachments?

Answer 45

Gastrocnemius

Question 46

What muscle plantarflexes the foot with the tibia, fibula, and calcaneus as attachments?

Answer 46

Soleus

Question 47

What muscle plantarflexes the foot and flexes the hallux with the fibula and hallux as attachment sites?

Answer 47

Flexor hallicus longus

Question 48

What muscle plantarflexes the foot and flexes digits 2-5 with the tibia and digits 2-5 as attachment sites?

Answer 48

Flexor digitorum longus

Question 49

What four muscles are in the posterior compartment of the leg?

Answer 49

Gastrocnemius, soleus, flexor digitorum longus, and flexor hallacis longus

Question 50

What are the layers of the posterior compartment of the leg?

Answer 50

Gastrocnemius, then soleus, then flexor digitorum longus and flexor hallacis longus