Flashcards in Chapter 4 Deck (72)
What types of tissue are normally found in skin?
All 4 types of tissue:
Why would burn damage to the skin represent such a serious challenge to a person's health?
Skin burns affect homeostasis of fluid levels and pH levels in the body
Why would it be more difficult to produce new dermis in the laboratory than new epidermis?
The dermis contains blood vessels, nerves, and glands, whereas the epidermis does not.
What is tissue?
Tissue is composed of specialized cells of the same type that perform a common function in the body. There are 4 types of tissue in the body.
What are the 4 types of tissue?
• Connective tissue
• Muscular tissue
• Nervous tissue
• Epithelial tissue
Type of tissue that binds structures together, provides support and protection, fills spaces, stores fat, and forms blood cells; adipose tissue, cartilage, bone, and blood are types of connective tissue.
Moves the body and its parts
Receives stimuli and conducts nerve impulses
Covers body surfaces and lines body cavities
How are cancers classified?
According to the type of tissue from which they arise.
How does cell division affect the chances of developing cancer?
The rate of cell division affects the chances of developing cancer. The higher the rate of cell division, the greater the chances. Because epithelial and blood cells reproduce at a high rate, carcinomas and leukemias are common.
What three components do connective tissues have in common?
• Specialized cells
• Ground substance
• Protein fibers
A noncellular material that separates the cells. It varies in consistency from solid (bone) to semifluid (cartilage) to fluid (blood)
What are the three possible typed of fibers?
• Collagen fibers
• Reticular fibers
• Elastic fibers
A white fiber in the matrix of connective tissue; gives flexibility and strength
Very thin collagen fibers in the matrix of connective tissue, highly branched and forming delicate supporting networks
Yellow fiber in the matrix of connective tissue, providing flexibility
In which two forms do fibrous tissues exist?
-Loose fibrous tissue
-Dense fibrous tissue
What is a fibroblast?
A cell in connective tissue that produces fibers and other substances
What is a Matrix?
Unstructured semifluid substance that fills the space between cells in connective tissues or inside organelles
Loose fibrous connective tissue
Areolar tissue; Tissue composed mainly of fibroblasts widely separated by a matrix containing collagen and elastic fibers
Connective tissue in which fat is stored
The cells of Adipose tissue. Adipocytes are crowded and are filled with liquid fat.
Dense fibrous connective tissue
Type of connective tissue containing many collagen fibers packed together; found in tendons and ligaments
A strap of fibrous connective tissue that connects skeletal muscle to the bone.
A tough cord or band of dense fibrous connective tissue that joins bone to bone at a joint
What are the two main supportive connective tissues?
Connective tissue in which the cells lie within lacunae separated by a flexible proteinaceous matrix
What purpose to cartilage and bone serve to the body?
They provide structure, shape, protection, and leverage for movement. Cartilage is more flexible than bone because it lacks mineralization of the matrix.