Module 4 (Muscles of the Appendicular Skeleton)

Question 1

Which muscles attach the axial skeleton to the pectoral girdle (shoulder)

Answer 1

Anterior - pectoralis minor and serratus anterior
Posterior - trapezius

Question 2

Position of the trapezius

Answer 2

Main superficial posterior muscle that attaches the axial skeleton to the pectoral girdle

Question 3

How do the pectoralis minor and serratus anterior attach to to the pectoral girdle

Answer 3

Via the rib cage

Question 4

Which muscles attach the axial skeleton to the arm (humerus)

Answer 4

Anterior - pectoralis major
Posterior - latissimus dorsi

Question 5

Movement of pectoralis major

Answer 5

Flexes the humerus

Question 6

Movement of latissimus dorsi

Answer 6

Extends the humerus

Question 7

Which muscle attaches the pectoral girdle to the humerus

Answer 7

The deltoid is the main superficial muscle that moves the humerus

Question 8

Which joint does the deltoid stabilize

Answer 8

Glenohumeral joint

Question 9

Movement of deltoid

Answer 9

Abducts the arm

Question 10

What are the 4 rotator cuff muscles that stabilize the glenohumeral joint (SITS)

Answer 10

Subscapularis
Infraspinatus
Teres minor
Supraspinatus

Question 11

Which muscles move the forearm

Answer 11

Biceps brachii and triceps brachii

Question 12

Movement of biceps brachii

Answer 12

Flexes the forearm at the elbow joint

Question 13

Movement of triceps brachii

Answer 13

Extends the forearm at the elbow joint

Question 14

Characteristic of biceps brachii

Answer 14

Powerful supinator of the forearm

Question 15

Which muscles move the wrist (forearm muscles)

Answer 15

Anterior - flexor carpi radialis and flexor carpi ulnaris
Posterior - extensor carpi radialis longus and brevis and extensor carpi ulnaris

Question 16

Characteristic of the flexor carpi radialis/ulnaris

Answer 16

Flex the wrist
Common origin on the medial epicondyle of the humerus
Named according to the bones they follow

Question 17

Characteristics of the extensor carpi radialis longus and brevis and the extensor carpi ulnaris

Answer 17

Extend the wrist
Common origin point one the lateral epicondyle of the humerus
Named according to the bones they follow

Question 18

Other forearm muscle that is less significant

Answer 18

Palmaris longus

Question 19

Characteristics of palmaris longus

Answer 19

Wrist flexibility
Superficial and inserts into CTs under the skin at the wrist

Question 20

Which muscles move the thigh

Answer 20

Anterior - iliopsoas
Posterior - glutues maximus, medius, and minimus

Question 21

Movement of the iliopsoas

Answer 21

Flexes the thight

Question 22

Where is the iliopsoas found

Answer 22

Runs from the lower spine and pelvis to the upper thigh bone

Question 23

Movement of the gluteal region

Answer 23

Extends the thigh

Question 24

Which muscles move the leg

Answer 24

Anterior - sartorius and quadriceps
Medial - adductors
Posterior - hamstrings

Question 25

Location and movement of sartorius

Answer 25

Crosses the hip and knee, acting to flex both joints

Question 26

Location of quadricep muscles

Answer 26

Originate below the hip joint, solely act on the knee

Question 27

Characteristics of the quadriceps femoris

Answer 27

Muscles come together to form the quadriceps tendon to insert on the patella

Question 28

Movement of quadriceps femoris

Answer 28

Extends the knee

Question 29

How does the patella connect to the tibia

Answer 29

Tibial tuberosity via the patellar ligament

Question 30

Location and movement of adductors

Answer 30

Found in the medial compartment of the thigh
Move the thigh medially with a minor involvement in the movement of the leg by a single muscle component

Question 31

Movement of hamstrings

Answer 31

Extends the thigh, flexes the knee

Question 32

Which muscles move the foot and ankle

Answer 32

Anterior - tibialis anterior
Lateral - peroneus (fibularis) longus
Posterior - gastrocnemius and soleus

Question 33

Movement of the tbials anterior

Answer 33

Extends the foot
Dorsiflexion

Question 34

Movement of the peroneus (fibularis) longus

Answer 34

Everts the foot

Question 35

Movement of gastrocnemius and soleus

Answer 35

Flexes the foot
Plantar flexion

Question 36

Location of solues

Answer 36

Immediately deep to gastrocnemius

Question 37

What do the gastrocnemius and soleus form

Answer 37

The Achilles tendon