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Chapter 3 Med Term for Professions
The Skeletal System
11
Medical
Professional
06/03/2010

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Term

Skeletal System

Includes

Definition
Consists of the bones, bone marrow, cartilage, joints, ligaments, synovial membrane, synovial fluid, and bursa.
Term
Skeletal System's Functions
Definition
  • Bones act as the framework of the body
  • Bones support and protect internal organs
  • Joints work in conjunction with muscles, ligaments, and tendons, making possible a wide variety of body movements
  • Calcium, which is required for normal nerve and muscle function, is stored in bones
  • Red Bone Marrow, which has an important function in the formation of blood cells, is located within spongy bone

 

Term
Periosteum
Definition

The tough, fibrous tissue that forms the outermost covering of bone.

 

Term

Compact Bone

aka

Dense Bone

Definition
The dense, hard, and very strong bone that forms a protective outer layer of bones.
Term

Spongy Bone

 

Definition
Is lighter, and not as strong, as compact bone. This type of bone is commonly found in the ends and inner portions of long bones such as femur. Red bone marrow is located within this spongy bone.
Term
Medullary Cavity
Definition

Is located in the shaft of a long bone and is surrounded by compactbone.

 

(Medullary - means pertaining to the inner section)

Term
Endosteum
Definition
Is the tissue that lines the medullary cavity.
Term
Red Bone Marrow
Definition

Is located with in the spongy bone, is hemopoiectic tissue that manufactures red blood cells, hemoglobin, white blood cells, and thrombocytes.

(Hemopoietic - means pertaining to the formation of blood cells)

Term
Yellow Bone Marrow
Definition
Functions as a fat storage area, and is composed of chiefly fat cells and is located in the medullary cavity.
Term
Cartilage
Definition
The smooth, rubbery, blue-white connective tissue that acts as a shock absorber between bones. Cartilage, which is more flexible than bone, also makes up the flexible parts of the skeleton.
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