spine and trunk Flashcards
(23 cards)
Bony points
transverse process of C1 spinous processes of cervical spinous processes of thoracic spinous and transverse processes of lumbar sacrum coccyx ribs/ costal cartilages sternum jugular notch
Scalene O/I
O: transverse process of cervical
I: 1st/ 2nd rib
Scalene actions
laterally flex head to same side and rotate the head to same side
sternocleidomastoid O/I
O: top of manubrium and medial clavicle
I: mastoid process
Sternocleidomastoid actions
laterally flex the head to the same side and rotate the head to the opposite side
levator scapulae O/I
O: T process of C1 - C4
I: medial scapular (superior) angle
levator scapulae actions
elevate, downwardly rotate the scapula and laterally flex/rotate the head to the same side
trapezius O/I
O: occipital protuberance, ligamentum nuchaen and spinous process of C7-T12
I: lateral clavicle, acromion, spine of scapula
trapezius actions
upper fibers: laterally flex/ rotate head at same side, elevate scapula
middle: adduct scapula
lower: depress and upwardly rotate scapula
erector spinae O/I
O: common tendon (sacrum, s.processes of lumbar and thoracic, iliac crest)
I: posterior ribs, t-processes lumbar/cervical and mastoid process
erector spinae actions
laterally flex vertebrae to same side and extends
quadratus lumborum actions
laterally tilt pelvis, laterally flex vertebrae to same side
quadratus lumborum O/I
O: posterior iliac crest
I: last rib, t processes L1-L4
Muscles of abdominal wall
rectus abdominus
external and internal obliques
transverse abdominous
rectus ab O/I
O: pubic crest, pubic symphysis
I: cartilage of rib, xiphoid process
rectus ab actions
flex the vertebrae
external obliques O/I
O: external surface of rib
I: anterior iliac crest
external oblique actions
laterally flex/ rotate to opposite side of vertebra
internal obliques O/I
O: inguinal ligament, iliac crest and iliotibial tract
I: internal surface of lower 3 ribs
internal oblique actions
laterally flex/ rotate to same side of vertebra
Axillary lymph nodes
- majorly found underarm
- responsible for receiving lymph from vessels dain the arm, the walls of the thorax, the breast and the upper walls of the abdomen
- divided into 5 groups for which receive and drain in different area of the axilla
axillary pulse
up in the axilla
axillary nerve
- continuation of posterior brachial plexus
- anterior to subscapularis, exits axilla via quadrangular space, pass medial to neck of humerus where it divides
- motor: teres minor, deltoid
- sensory: skin over deltoids
