TRUNK & SPINAL COLUMN

Question 1

STERNOCLEIDOMASTOID

Answer 1

O - Clavicle and manubrium
I - mastoid process 
N - Cranial nerve 11 and C2 and C3
A - Unilateral = side flex to same & rotation to opposite
Bilateral = neck flexion

Question 2

SPLENIUS CAPITIS

Answer 2

O - Ligamentum nuchae (C7 -T4 spinous process)
I - Mastoid process & occipital bone
N - C4-C8
A - Unilateral = side flexion & rotation to same side
Bilateral = Neck extension

Question 3

SPLENIUS CERVICUS

Answer 3

O - Spinous process T3 - T6 
I - Transverse process C1 - C3
N - C4-C8
A - Unilateral = side flexion & rotation to same side
Bilateral = neck extension

Question 4

RECTUS ABDOMINUS

Answer 4

O - Crest of pubis
I - Cartilage of 5th -7th ribs & zyphoid process
N - Intercostal nerve T7 -T12
A - Trunk flexion

Question 5

EXTERNAL OBLIQUE

Answer 5

O - Lower 8 ribs
I - Anterior 1/2 ilium, inguinal ligament, crest of pubis
N - Intercostal T8 -T12, iliohypogastric, ilioinguinal
A - Unilateral = ipsilateral side bending & rotation opp. side
Bilateral = Trunk flexion

Question 6

INTERNAL OBLIQUE

Answer 6

O - Inguinal ligament, anterior 2/3 ilium, lumbar fascia
I - Costal cartilage of 8 - 10 & linea alba
N - Intercostal T8 - T12, iliohypogastric and ilioinguinal
A - Unilateral = side flexion same side & rotation same side
Bilateral = Trunk flexion

Question 7

TRANSVERSE ABDOMINUS

Answer 7

O - Inguinal ligament, iliac crest, cartilage of lower 6 ribs, and lumbar fascia
I - Crest of pubis and linea alba
N - Intercostal T8 -T12, iliohypogastric and ilioinguinal
A - Pulls umbilicus towards spine

Question 8

QUADRATUS LUMBORUM

Answer 8

O - Posterior iliac crest
I - 12th rib, transverse process L1 - L4 
N - T12 - L1 
A - Unilateral = same side flexion 
Bilateral = Stabilize spine