Skeletal Anatomy Flashcards
thoracic cage function
protect lungs and heart
allow expansion and contraction
thoracic cage components
sternum
ribs (7 pairs of true ribs attach to sternum and 5 pairs of false ribs attach to cartilage of rib 7) and 1 pair of floating)
ribs
curved flat bone
head articulates with vertebral body
tubercle with transverse process
costal cartilage with sternum
pectoral girdle components
clavicles
scapulae (acromion most lateral, spine =ridge, glenoid cavity = socket)
pectoral girdle function
allow attachment of arm and movement as only point of attachment is sternal end)
humerus articulations
head with scapula
distal condyles with forearm
bones of forearm
radius - lateral (thumb side), head articulates with humerus
ulna - trochlear notch articulates with humerus, olecranon forms elbow point
forearm pronation
bones can turn over each other
bones in the wrist
2 rows of carpals (8short bones)
metacarpals I-V (I = thumb)
phalanges x3 (proximal, middle, distal) but x2 in thumb
pelvis components
sacrum
coccyx
pubic crest
coxal bones
pelvis functions
support stability as complete ring of bone and articulate with leg
pelvis sex differences
women - >100 degree pubic angle and broad pelvic outlet
men - <90 degree pubic angle and narrower outlet
os coxae
coxal bones consisting of
iliac crest
acetabulum
ischial tuberosities
formed by fusion of
ilium
ischium
pubis
femur components
head
neck
greater trochanter
shaft
condyles
features of tibia
medial and lateral condyles articulate with femur
medial malleolus
distal articular surface (ankle joint)
