Upper Part Of The Anterior Body-Origins & Insertions

Question 0

Sternocleidomastoid- flexion and rotation of the head

Answer 0

O- sternum (head of manubrum) and medial clavicle

I- mastoid process

Question 1

Temporalis- Closes and retracts the jaw

Answer 1

I- Coranoid process of the mandible

O- Temporal bone

Question 2

Platysma- depresses the angle of the mouth and wrinkles the skin of the neck

Answer 2

O- anterolateral and upper fascia of the thorax

I- muscles of the mouth and chin

Question 3

Deltoid-abduction and horizontal rotation of the arm

Answer 3

O-lateral clavicle and the acromian aspect of the spine of the scapula
I- upper humerus

Question 4

Pectoralis Major- adduction, horizontal adduction, medial rotation of the humerus, and extension of the humerus (draws the arm forward and down) …This lifts the Rhomboids

Answer 4

O- medial clavicle, sternum, costal cartilage of the 1-6

I- lateral ridge of the bicipital groove

Question 5

Biceps Brachii- flexion of the forearm, also supinates

Answer 5

O- (2) top and coracoid process of the scapula

I- proximal end of the radius, closest to the elbow

Question 6

Brachioradialis- flexion of the elbow

Answer 6

O- lateral proximal part of the humerus

I- distal head of the radius (styloid process)

Question 7

Pronator- pronates the hand or turns the palms back

Answer 7

O- medial epicondyle of the humerus

I-mid-lateral radius

Question 8

Flexor Carpi Radialis- abduction of the hand (rad-rad)

Answer 8

O-medial epicondyle of the humorus

I- base of the second and third metacarpal

Question 9

Flexors of the hand and wrists- hand, wrist flex & adduction

Answer 9

O- various parts of the humerus

I- various bones of the metacarpal

Question 10

Serratus Anterior- stabilizes the scapula, protraction, draws the ribs up during respiration

Answer 10

O- lateral costal 1-8

I- medial margin of the scapula (anterior aspect)

Question 11

External Oblique- flexion of the thorax, compresses the viscera

Answer 11

O- external surface of the lower 8 costals 3-10

I- abdominal aponeuroses, linia alba

Question 12

Internal Oblique- flexion of the thorax, compresses the viscera; lateral flexion, and rotation of the trunk

Answer 12

O- inguinal ligament and iliac crest

I- abdominal linia alba, & cartilage of the lower four costals

Question 13

Rectus Abdominis- flexes the thorax, compresses the viscera

Answer 13

O- crest of the pubis and pubic symphysis

I- xiphoid process, and cartilage of costals 5-7

Question 14

Transverse Abdominis- Tenses abdominal. The gives the 6 or 8 pack appearance (poop, push, heavy-lifting muscle)

Answer 14

O- lumber fascia, illiac crest, and inguinal ligament, (wraps around coming from the posterior covering lower 6 ribs)
I- aponeuroses & lines alba from the xiphoid