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Chapter 6 Tissues and Membranes
Terms in this set (45)
Also called epithelium forms large continuous sheets. Helps form the skin and covers the entire outer surface of the body. Also line most of the inner cavities such as the mouth, respiratory tract, and reproductive tract.
Protects, absorbs, filters, secretes, and transports.
Avascular depends on underlying connective tissue for nourishment.
Undersurface attached to basement membrane.
Thin and flat like fish scales.
Cube like and look like dice.
Tall and narrow and look like columns.
Single Layer, Concerned primarily with the movement or transport of various substances across the membranes from one body compartment to another. Include simple cuboidal, simple columnar, pseudo stratified columnar epithelium.
Multilayered. They perform a protective function and are found in tissue exposed to everyday wear and tear such as the mouth esophagus and skin. Most widespread of the epithelial tissue.
Have ducts or tiny tubes into which the exocrine secretions are released before reaching body surfaces or body cavities. The exocrine secretions include mucus, sweat, saliva, and digestive enzymes.
Secrete hormones such as insulin. Do not have ducts and are called ductless glands. The hormones are excreted directly into the blood and then the blood carries the hormones to their sites of action.
The most abundant of the four tissue types and is widely distributed throughout the body. Found in blood, under the skin, in bone, and around many organs. Connective tissue connects or binds together the parts of the body.
Connects, supports, protects, fat storage, transportation.
Intercellular matrix- composed of fibrous protein and ground substance.
Most is well vascularized- exceptions tendons, ligaments, cartilage.
Presence and amount of protein fibers vary- Collagen, elastin, reticular fibers.
Walls of blood vessels, Alveoli, Kidneys. Permits the exchange of nutrients and wastes. Allows diffusion of oxygen and carbon dioxide. Filtration of water and electrolytes.
Lining of kidney tubules, various glands(thyroid, pancreas,salivary glands) Absorption of water and electrolytes. Secretion of enzymes and hormones.
Digestive tract. Protection, absorption, and secretion of digestive juice. Often continues goblet cells (mucous)
Pseudo stratified columnar
Lining of respiratory tract, lining of reproductive tubes(fallopian tubes) Protection and secretion, cleans respiratory passages, sweeps eggs towards uterus.
Outer layer of skin, lining of mouth , esophagus, anus, and vagina. Protects the body from invading microorganisms withstands frictions.
Urinary bladder, Permits expansion of an organ.
Made up of collagen and elastin fibers in a gel like intercellular matrix. Soft and surrounds protects and cushions many of the organs acting as tissue glue. Loose connective tissue
Fat is composed primarily of adipocytes or cells that store fat.
Fat serves as the body's reservoir of energy, assists in body temperature regulation, acts like a cushion, protects some organs by anchoring them in place. Loose connective tissue
Cordlike structures that attach muscles to bones.
Cross joints and attach bones to each other. Stretch more easily because they contain more elastic fibers.
Cartilage cells. Cartilage is formed by chondroblasts.
Dense fibrous connective tissue
Composed of fibroblasts and an intercellular matrix that contains many collagen and elastic fibers.
Characterized by a network of delicately interwoven cells and reticular fibers. Forms the internal framework for lymphoid tissues such as the spleen, lymph nodes, and bone marrow.
Found in the larynx or voice box, ends of long bones at joints, the nose, and the area between the breastbone and the ribs.
Bone tissue. Consume enough calcium
Blood and lymph
Connective tissue that have a liquid intercellular matrix. contains non-fibrous plasma proteins. Lymph is the fluid that is found in lymphatic vessels.
Makes up the brain, spinal cord, and nerves.
Nerve cells that transmit electrical signals to and from the brain and spinal cord. Three parts of a neuron, dendrties, the cell body, and the axon.
(Gila) Cells that support and take care of the neurons. Ability of cells to support or bind together.
Composed of cells that contract to cause movement of a body part.
Generally attached to the bone. Also called striated muscle. Moves the skeleton, maintain posture, and stabilize joints.
Also called visceral muscle. Generally found in the walls of the viscera, or organs such as the stomach, intestines, and urinary bladder. Function of smooth muscle if related to the organ in which it is found.
Found only in the heart. It functions to pump blood into a vast network of blood vessels.
Regeneration- Replacement of tissue via mitosis
Fibrosis- Replacement of injured tissue with fibrous connective tissue (scar tissue)
Keloid scarring- Excessive fibrosis
Steps in Tissue repair
Clot and Scab
Tissue repair begins
Scar tissue forms
Epithelial cells multiple
Thin sheets of tissue that cover surfaces, line body cavities, surround organs.
Line all body cavities that open to the exterior of the body. They include the digestive, urinary, reproductive and respiratory tracts.
Line the ventral body cavities that are not open to the exterior of the body.
Part of the membrane that covers the outside of an organ.
The layer of the pleural and peritoneal serous membranes that adheres to the outer surface of an organ such as the lungs.
Steps in tissue repair
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