Skeletal System By: Oscar Aguilera & Vince Maala

Mandible – lower part of the jaw Skull – head Clavicle – shoulder blade Humerus – upper arm Ulna – forearm bone going from the thumb to the elbow Radius – forearm bone going from pinky to elbow Carpals – wrist bone Metacarpals – first segment of the finger Phalanges – 2 smaller finger bones Sternum – connects ribs together Rib cage – the ribs Vertebral column – back bone Pelvic girdle – hip bone Femur – thigh bone Patella – knee cap Tibia – front bone of the shin Fibula – back bone of the shin Tarsal – heel Metatarsals - feet

Ball and Socket allows rotation. There is a ball shaped end to a bone which sits in a socket and is able to move in almost any direction. (hip and leg)

Hinge allows flexion and extension. The joint is like a hinge on a door, allowing the joint to open and close. (knee) allows flexion and extension. The joint is like a hinge on a door, allowing the joint to open and close. (knee)

Condyloid allows circular motion, the ball rests up against the end of a bone rather than inside a socket. (wrist rests against the end of the radius bone)

Saddle  allows movement in various directions. (thumb meets the wrist the bones fit up against each other like a saddle fits over the back of a horse

Pivot  allows bones to pivot or rotate against each other. (first cervical vertebrae & second cervical vertebrate) pivot against each other.

Scoliosis Scoliosis is not a disease but a descriptive term. Scoliosis is an abnormal side to side (lateral) curves in the spinal column. Scoliosis effects 2% of women and 0.5% of men. Scoliosis is congenital spine genetic conditions, neuromuscular problems. Symptoms are shoulders are at different heights, head is not centered with pelvis, rib cages are different heights, uneven waist, and entire body is leaning to one side.

Skull Joint Fibrous joints (sutures in the skull).

Osteoarthritis Common kind of arthritis among older people. Joint disease that affects the slippery tissue that covers the ends of joints of bones. Symptoms are joint pain and limited movement. More than 20 million people in the U.S. have this problem.

Definitions Bone -The dense, porous, calcified connective tissue forming the major portion of the skeleton of most vertebrates. Bone -The dense, porous, calcified connective tissue forming the major portion of the skeleton of most vertebrates. Cartilage -A tough, elastic, fibrous connective tissue found in various parts of the body, such as the joints, outer ear, and larynx. Cartilage -A tough, elastic, fibrous connective tissue found in various parts of the body, such as the joints, outer ear, and larynx. Joint-A point of articulation between two or more bones, especially such a connection that allows motion Joint-A point of articulation between two or more bones, especially such a connection that allows motion marrow -The soft, fatty, vascular tissue filling the cavities of bones, having a stroma of reticular fibers and cells marrow -The soft, fatty, vascular tissue filling the cavities of bones, having a stroma of reticular fibers and cells Ossification -The hardening or calcification of soft tissue into a bonelike material. Ossification -The hardening or calcification of soft tissue into a bonelike material. Osteocyte -a branched cell embedded in the matrix of bone tissue. Osteocyte -a branched cell embedded in the matrix of bone tissue.