How can we help?

You can also find more resources in our Help Center.

127 terms

Ch. 11 Review

STUDY
PLAY
What is the pectoral girdle designed to do?
Increase upper limb mobility
Name the two groups in the pectoral girdle.
Dorsal and Ventral
Name the components of the dorsal groups.
Trapezius, Rhomboids, and Levator scapulae
Where does the trapezius muscle originate?
Occipital bone and spinous processes of thoracic vertebrae
Where does the trapezius muscle insert?
Clavicle and scapula (acromian process and spine)
What is the trapezius muscle responsible for?
Elevation, Retraction, and Depression or rotation of scapula
What is the function of the rhomboids?
adducts and performs downward rotation of scapula (pulls towards center of back)
What is the levator scapulae responsible for?
Elevation of the scapula (shrugging)
Name the muscles categorized under the ventral group of the pectoral girdle.
Serratus anterior, Subclavius, and Pectoralis minor
What is the function of the serratus anterior?
protracts (abducts) scapula swinging the shoulder anteriorly and rotates the glenoid cavity moving it superiorly
What is the subclavius responsible for?
Depresses and protracts
What is the function of the pectoralis minor?
depresses and protracts shoulder and rotates scapula so glenoid cavity moves inferiorly
Where does the deltoid originate?
Clavicle and acromian process/spine of scapula
Where does the deltoid insert?
Deltoid tuberosity of humerus
What is the function of the deltoid?
Abduction of shoulder and flexion or extension and medial or lateral movement of humerus
What is the supraspinatus in relation to the deltoid and what does it initiate?
Synergist, Movement
Where does the supraspinatus originate?
Supraspinous fossa of scapula
Where does the supraspinatus insert?
Greater tubercle of humerus
Name the muscles of the upper arm.
Deltoid, Supraspinatus, Teres major, Subscapularis, Infraspinatus, Teres minor, Coracobrachialis, pectoralis major, and Latissimus dorsi
Where does the teres major originate?
Inferior angle of scapula
Where does the teres major insert?
Intertubercular groove of humerus
What is the function of the teres major?
Extension, adduction, and medial rotation of the shoulder
Where does the subscapularis originate?
Subscapular fossa
Where does the subscapularis insert?
Lesser tubercle of humerus
What is the function of the subscapularis?
Medial rotation of shoulder
Where does the infraspinatus originate?
Infraspinous fossa
WHere does the infraspinatus insert?
Greater tubercle of humerus
What is the function of the infraspinatus?
Lateral rotation of shoulder
Where does the teres minor originate?
Lateral border of scapula
Where does the teres minor insert?
Greater tubercle of humerus
What is the teres minor responsible for?
Lateral rotation of shoulder
Where does the corachobrachialis originate?
Coracoid process
Where does the corachobrachialis insert?
Medial margin of shaft of humerus
What is the function of the corachobrachialis?
Adduction and flexion at shoulder
Where does the pectoralis major originate?
Cartilage of ribs 2-6, body of sternum, and inferior medial portion of clavicle
Where does the pectoralis major insert?
Crest of greater tubercle and intertubercular groove of humerus
What is the function of the pectoralis major?
Flexion, adduction, and medial rotation at shoulder
Where does the latissimus dorsi originate?
Spinous process of inferior thoracic and all lumbar vertebrae and ribs 8-12
Where does the latissimus dorsi insert?
Intertubercular groove of humerus
What is the function of the latissimus dorsi?
Extension, adduction, and medial rotation at shoulder
Name the flexors of the forearm.
Biceps brachii, Brachialis, and Brachioradialis
Where does the short head of the biceps brachii originate?
Coracoid process of scapula
Where does the long head of the biceps brachii originate?
Supraglenoid tubercle of scapula
Where does the biceps brachii insert?
Radial tuberosity
What is the action of the biceps brachii?
Flexion at elbow and supination (palm forward)
Where does the brachialis originate?
Anterior distal surface of humerus
Where does the brachialis insert?
Ulnar tuberosity
what is the function of the brachialis and brachioradialis?
Flexion at elbow
Where does the brachioradialis originate?
Lateral epicondyle of humerus
Where does the brachioradialis insert?
Ulnar tuberosity
Name the extensors of the forearm.
Triceps brachii
Where does the lateral head of the triceps brachii originate?
Superior lateral margin of humerus
Where does the lateral head of the triceps brachii insert?
Olecranon of elbow
What is the function of the lateral head of the triceps brachii?
Extension of elbow
Where does the long head of the triceps brachii originate?
Infraglenoid tubercle of scapula
What is the function of the long head of the triceps brachii?
Extension of elbow and extension and adduction of shoulder
Where does the medial head of the triceps brachii originate?
posterior surface of humerus
Where does the medial head of the triceps brachii insert?
Olecranon
What is the function of the medial portion of the triceps brachii?
Extension of elbow
Name the flexors of the wrist and hand.
Flexor carpi radialis, and Flexor carpi ulnaris
Where does the flexor carpi radialis originate?
Medial epicondyle of humerus
Where does the flexor carpi radialis insert?
Bases of metacarpal bone
What is the function of the flexor carpi radialis?
Flexion and abduction at wrist
where does the flexor carpi ulnaris originate?
Medial epicondyle of humerus and olecranon of ulna
Where does the flexor carpi ulnaris insert?
Carpal bones and metacarpal bones
What is the function of the flexor carpi ulnaris?
Flexion and adduction at wrist
Name the extensors of the wrist and hand.
Extensor carpi radialis, and Extensor carpi ulnaris,
Where does the extensor carpi radialis originate?
Lateral aspect of epicondyle and superior region of humerus
Where does the extensor carpi radialis insert?
Base of metacarpal bones
What is the function of the extensor carpi radialis?
Extension and abduction of wrist
Where does the extensor carpi ulnaris originate?
Lateral epicondyle of humerus and adjacent to ulna
Where does the extensor carpi ulnaris insert?
Metacarpal bones
What is the function of the extensor carpi ulnaris?
Extension and adduction of wrist
What is the function of the muscles of the thigh?
Designed to transfer weight and this extra bulk limits range of motion
Name the muscles of the gluteal group.
maximus, illiotibial tract, medius, minimus, and tensor fasciae latae
Where does the maximus originate?
Iliac crest and lateral surface of ilium, sacrum, coccyx, and thoracolumbar fascia
where does the maximus insert?
Iliotibial tract and gluteal tuberosity of femur
what is the function of the maximus?
Extension and lateral rotation at hip, stabilize extended knee
What is the iliotibial tract?
A band of collagenous fibers that extend along the lateral surface of the thigh
Where does the iliotibial tract insert?
Tibia
Where does the medius originate?
Anterior iliac crest and lateral surface of ilium
Where does the medius insert?
greater trochanter of femur
What is the function of the medius?
Abduction and medial rotation
where does the minimus originate?
Lateral surface of ilium
Where does the minimus insert?
Greater trochanter of femur
What is the function of the minimus?
Abduction and medial rotation
Where does the tensor fasciae latae originate?
Iliac crest
What is the function of the tensor fasciae latae?
Flexion and medial rotation at hip, laterally supports the knee
Name the muscles of the adductor group of the thigh.
Adductor brevis, Adductor longus, Adductor magnus, Pectineus, and Gracilis
What is the function of the adductor brevis and adductor longus muscles?
Adduction, Flexion, and medial rotation at hip
Where do all of the adductor muscles of the thigh originate?
Ramus of pubis
Where do all of the adductor muscles of the thigh insert?
femur
What is the function of the adductor magnus?
Adduction at hip, flexion and medial rotation
What is the function of the pectineus?
Flexion, medial rotation, and adduction at hip
What is the function of the gracilis?
flexion at knee, adduction and medial rotation at hip
Name the extensor muscles of the lower leg.
Rectus femoris, Vastus intermedius, Vastus lateralis, and Vastus medius
Where does the rectus femoris originate?
Anterior inferior iliac spine and superior acetabulum rim
Where does the rectus femoris insert?
Tibial tuberosity via quadriceps tendon, patella, and patellar ligament
What is the function of the rectus femoris?
Extension at knee and flexion at hip
Where does the vastus intermedius, vastus lateralis, and vastus medius originate?
Femur
Where does the vastus intermedius, vastus lateralis, and vastus medius insert?
Tibial tuberosity
What is the function of the vastus intermedius, vastus lateralis, and vastus medius?
Extension at knee
Name the flexors of the knee.
Biceps femoris, Semimembranosus, Semitendinosus, Sartorius, and Popliteus
Where does the biceps femoris, Semimebranosus, and Semitendinosus originate?
Ischial tuberosity
Where does the biceps femoris, semimebranosus, and semitendinosus insert?
Tibia
What is the function of the biceps femoris?
Flexion at knee, extension and lateral rotation at hip
What is the function of the semimebranosus and semitendinosus?
Flexion at knee, extension and medial rotation at hip
Where does the sartorius originate?
Anterior superior iliac spine
Where does the sartorius insert?
Medial surface of tibia near tibial tuberosity
What is the function of the sartorius?
Flexion at knee and lateral rotation at hip
Where does the popliteus originate?
Lateral condyle of femur
Where does the popliteus insert?
Posterior surface of proximal tibial shaft
What is the function of the popliteus?
Medial rotation of tibia and flexion at knee
Name the muscles of the ankle and foot.
Gastrocnemius, Soleus, and Tibialis anterior
Where does the gastrocnemius originate?
Femoral condyles
Where does the gastrocnemius insert?
Calcaneous
What is the function of the gastrocnemius?
Plantar flexion at ankle
Where does the soleus originate?
Head and proximal shaft of fibula and adjacent posteromedial shaft of tibia
Where does the soleus insert?
Calcaneous
What is the function of the soleus?
Plantar flexion at ankle and postural muscle when standing
Where does the tibialis anterior originate?
Lateral condyle and proximal shaft of tibia
where does the tibialis anterior insert?
Base of metatarsal bones and tarsals
What is the function of the tibialis?
Oppose action of gastrocnemius and dorsiflexion at ankle
Name the quadriceps.
Rectus femoris, Vastus intermedius, Vastus lateralis, and Vastus medius
What are the quadriceps responsible for?
Extension
Name the hamstring group.
Biceps femoris, Semimembranosus, Semitendinosus, Sartorius, and Popliteus
What is the hamstring group responsible for?
Flexion at knee