blood.txt

Fluid circulated by the heart through a closed system of vessels.

Connective tissue having protein fibers and a hard matrix of inorganic salts, notably calcium salts.

Striated, involuntary muscle tissue found only in the heart.

Organ system in which blood vessels distribute blood under the pumping action of the heart.

Connective tissue in which the cells lie within lacunae embedded in a flexible, proteinaceous matrix.

Type of epithelial tissue in which the cells are rectangular with the nuclei typically located at the bottom of each cell.

Type of bone that contains osteons consisting of concentric layers of matrix and osteocytes in lacunae.

Type of animal 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.

Type of epithelial tissue in which the cells are cube-shaped.

Type of connective tissue containing many collagen fibers packed together; found in tendons and ligaments, for example.

Organ system that includes the mouth, esophagus, stomach, small intestine, and large intestine (colon) that receives food and digests it into nutrient molecules. Also has associated organs: teeth, tongue, salivary glands, liver, gallbladder, and pancreas.

Organ system involved in the coordination of body activities; uses hormones as chemical signals secreted into the bloodstream.

Tissue that lines hollow organs and covers surfaces.

Connective tissue cell that synthesizes fibers and ground substance.

Maintenance of normal internal conditions in a cell or an organism by means of self-regulating mechanisms.

Cartilage whose cells lie in lacunae separated by a white translucent matrix containing very fine collagen fibers.

All the cells in the body that protect the body against foreign organisms and substances and also against cancerous cells.

Organ system consisting of skin and various organs, such as hair, which are found in skin.

Region that holds adjacent cardiac muscle cells together; disks appear as dense bands at right angles to the muscle striations.

Small pit or hollow cavity, as in bone or cartilage, where a cell or cells are located.

Tough cord or band of dense fibrous tissue that binds bone to bone at a joint.

Tissue composed mainly of fibroblasts widely separated by a matrix containing collagen and elastic fibers.

Cavity of a tubular organ.

Organ system consisting of lymphatic vessels and lymphatic organs; transports lymph and lipids, and aids the immune system.

Unstructured semifluid substance that fills the space between cells in connective tissues or inside organelles.

Type of animal tissue composed of fibers that shorten and lengthen to produce movements.

System of muscles that produces movement, both within the body and of its limbs; principal components are skeletal muscle, smooth muscle, and cardiac muscle.

Mechanism of homeostatic response by which the output of a system suppresses or inhibits activity of the system.

Bundle of long axons outside the central nervous system.

Organ system consisting of the brain, spinal cord, and associated nerves that coordinates the other organ systems of the body.

Tissue that contains nerve cells (neurons), which conduct impulses, and neuroglia, which support, protect, and provide nutrients to neurons.

Nonconducting nerve cells that are intimately associated with neurons and function in a supportive capacity.

Nerve cell that characteristically has three parts: dendrites, cell body, and an axon.

Combination of two or more different tissues performing a common function.

Formed element in blood that is necessary to blood clotting.

Erythrocyte; contains hemoglobin and carries oxygen from the lungs or gills to the tissues in vertebrates.

Organ system that contains male or female organs and specializes in the production of offspring.

Organ system consisting of the lungs and tubes that bring oxygen into the lungs and take carbon dioxide out.

Striated, voluntary muscle tissue that comprises skeletal muscles; also called striated muscle.

System of bones, cartilage, and ligaments that works with the muscular system to protect the body and provide support for locomotion and movement.

Nonstriated, involuntary muscles found in the walls of internal organs.

Type of epithelial tissue in which the cells are flattened.

Having bands; in cardiac and skeletal muscle, alternating light and dark bands produced by the distribution of contractile proteins.

Strap of fibrous connective tissue that connects skeletal muscle to bone.

Group of similar cells combined to perform a common function.

Fluid that surrounds the body's cells; consists of dissolved substances that leave the blood capillaries by filtration and diffusion.

Organ system consisting of the kidneys and urinary bladder; rids the body of nitrogenous wastes and helps regulate the water-salt balance of the blood.

Leukocyte, of which there are several types, each having a specific function in protecting the body from invasion by foreign substances and organisms.