Chapter 19 Review The Skeleton

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Section 1

Question Answer
The root oste/o meansBone
The root myel/o means Bone Marrow
A bone of the spinal cord is the Vertebrae
The largest bone in the pelvis is the Ilium
The large bone in the thigh is the femur
The skeletons job is toProtect vital organs and works with the muscular system to provide movement at the joints
The human body has ____ bones206
The axis skeleton consists of theSkull (8 cranial bones and 14 facial bones) and Spinal Column (26 Vertebrae)
Thoracic T1-T12
Lumbar L1-L5
The thorax consists of 12 ribs joined by cartilage
The appendicular skeleton is attached to the Axis Skeleton, Consists of bones of shoulders, the upper extremities (arms, wrist, palm and finger bones) lower division (The pelvis bones, legs, kneecaps, toes and ankle bones)
Bones are formed by gradual addition of calcium and phosphorus salts to cartilage, this process is calledOssification
Mature bone cells are Osteocytes
Cells that produce bones areOsteoblasts
Breaking down of bone tissueOsteoclasts
The process of destroying bone so that it can be used in circulation is Resorption
A long bone consists ofA shaft/dialysis, medullary (yellow bone marrow) and the epiphysis
The thin layer of fibrous tissue that covers the bone is called Periosteum

Section 2

Question Answer
Joints are also calledArticulations
A suture is an Immovable joint held together by fibrous connective tissue
A symphysis is aSlightly moveable joint connected by cartilage
A synovial joint or Diarthrosis is a Freely moveable joint
______ Connect muscles to bonesTendons
The diarthrotic cavity contains Synovial Fluid, which lubricates and cushions the joints
Synovial joints are strengthened by Ligaments, which connect bone to bone
______ is a small sac of synovial fluid that cushions around the jointsBursa
The medical specialty that concentrates on the diseases of the skeletal and muscular systems is Orthopedics
______ is the inflammation of a boneOsteomyelitis
A fracture in a bone usually caused by trauma is a Fracture
The loss of bone mass that results in bone weakening is Osteoporosis
Lower than average bone density is Osteopenia
Softening of bone tissue is calledOsteomalacia
A disorder of aging in which bone becomes overgrown and thicker but deformed isPaget Disease
Inflammation of a joint isOsteoarthritis/Arthritis
An exaggerated curve in the thoracic region commonly known as hunchback is Kyphosis
An exaggerated curve in the lumbar region commonly known as swayback is Lordosis
A sideways curvature of the spine in any region is Scoliosis