Chap 15 - Bones Of The Thorax Pelvis And Extremities

Clavicle collar bone 1 on each side connects breastbone to each shoulder blade Scapula shoulder blade - 2 flat triangular bones one on each dorsal side of the thorax acromion extension of the scapula that joins with the clavicle to form a joint above the shoulder acromioclavicular (AC) joint joint formed by the scapula and clavicle sternum breastbone - flat bone extending down the midline of the chest xiphoid process lower portion of the sternum manubrium upper portion of the sternum ribs 12 pairs of ribs 1st 7 pair are joined anteriorly to the sternum by costal cartiladge ribs 8 - 10 = false ribs join with the vertebral column in the back but join the 7th rib anteriorly ribs 11 - 12 = floating ribs completely free at their anterior ends humerus upper arm bone joins with the glenoid fossa of the scapula to form the shoulder joint ulna medial lower arm bone olecranon elbow bone radius lateral lower arm bone carpals wrist bones - 2 rows of 4 bones in the wrist metacarpals 5 radiating bones in the fingers bones of the palm of the hand phalanges phalanx (singular) finger bones each finger (except the thumb) has 3 phalanges (proximal middle and distal) thumb has 2 phalanx - proximal and distal Bones of the Pelvis Pelvic girdle - collection of bones that supports the trunk of the body articulates with the femur to form the hip joint ilium - uppermost and largest portion ischium - posterior part of the pelvis pubis - anterior part (2 pubic bones are joined by way of cartilaginous disk - area is called the pubic symphysis iliac crest superior part of the ilium filled with red bone marrow serves as an attachment for the abdominal walls pelvic cavity rectum, sigmoid colon, bladder, female reproductive organs lie within the pelvic cavity Bones of the Leg and Foot femur - thigh bones patella - kneecap tibia - larger of the 2 bones in the lower leg fibula - smaller of the 2 bones in the lower leg tarsals - bones of the hind part of the foot metatarsals - bones of the midfoot phalanges of the toes - bones of the forefoot acetabulum socket in the pelvis where the thigh bone is joined