a&p tissues
Collagen
a tough fiber found in the matrix of connective tissue
Hyaline cartilage
a type of cartilage that forms the early skeleton of the embryo
Areolar
a type of loose connective tissue
Connective tissue
a type of tissue that supports or binds
Histamine
an inflammatory substance produced in response to allergies
Basement membrane
anchors epithelial cells to each other and to underlying tissues
Heparin
anticoagulant manufactured by the liver
Dentin
bone-like substance found in teeth
Pseudostratified epithelium
cells that have a layered appearance but actually extend from the basement membrane to the outer free surface
Ligament
connective tissue that attaches bone to bone
Cell body
contains the nucleus of a neuron
Tendons
dense connective tissue that attaches muscle to bone
Phagocytic
describing the process by which a cell eats debris and microorganisms
Endocrine glands
ductless glands that secrete hormones directly into the bloodstream
Kupffer cells
eat bacteria and old white and red blood cells; found in the liver
Macrophages
engulf and digest antigens; monocytes
Squamous epithelium
epithelial cells that are flat and slightly irregular in shape and serve as a protective layer
Columnar epithelium
epithelial cells that are tall and rectangular; found lining the ducts of certain glands and in mucous-secreting tissues
Endothelium
epithelial cells that line the circulatory system
Cuboidal epithelium
epithelial cells that look like small cubes; their function is secretion, protection and absorption
Elastin
flexible fibers found in the matrix of connective tissue
Glandular epithelium
forms glands
Elastic cartilage
forms the external ear, ear canals and epiglottis
Cancellous bone
forms the inner spongy tissue underneath compact bone
Fibrocartilage
forms the intervertebral disks that surround the spinal cord
Compact bone
forms the outer layer of bone and is very dense
Smooth muscle
found in hollow structures of the body like the intestines; cannot be influenced at will
Compound exocrine glands
glands made of several lobules with branching ducts
Exocrine glands
glands that have ducts
Simple exocrine glands
glands with ducts that do not branch
Tissue
groups of cells similar in size, shape and function
Endocardium
innermost layer of the heart wall, including epithelial cells that line the heart
Matrix
intercellular material in connective tissue
Histiocytes
large, stationary phagocytic cells
Fascia
layer of areolar tissue covering the whole muscle trunk
Synovial membranes
line the cavities of freely moving joints; produce synovial fluid
Mucous membrane/epithelium
lines the digestive, respiratory, urinary and reproductive tracts; produces mucus
Serous tissue
lines the great cavities of the body that have no opening to the outside; also called mesothelium
Adipose
loose connective tissue full of fat cells
Pericardium
membrane covering the heart
Peritoneum
membrane lining the abdominal cavity
Pleura
membrane that lines the thoracic cavity
Striated or skeletal muscle
muscle attached to bone
Muscle fibers
muscle cells
Neuroglia
nerve cells that perform support and protection
Simple epithelium
one cell-layer thick
Microglia
phagocytic cell found in the central nervous system; also called neuroglia
Dendrites
receptive areas of the neuron; extensions of the nerve cell body
Erythrocytes
red blood cells (RBCs)
Visceral
refers to the covering of an organ
Parietal
refers to the walls of a cavity
Mast cells
roundish-shaped cells found close to small blood vessels that produce heparin
Stratified epithelium
several layers of cells thick
Transitional epithelium
several layers of closely packed, flexible, easily stretched cells; appear flat when stretched and saw-toothed when relaxed
Fibroblasts
small, flattened cells with large nuclei and reduced cytoplasm that produce fibrocytes
Lymphoid tissue
specialized connective tissue
Reticuloendothelia (RE) system
specialized connective tissue involved in phagocytosis
Hematopoietic tissue
specialized connective tissue that produces blood cells
Intercalated disks
structures that connect the branches of cardiac muscle cells with one another
Peristalsis
the physical movement or pushing of food along the digestive tract
Lacunae
tiny cavities between the lamellae or rings of compact bone that contain bone cells
Muscle tissue
tissue that can shorten and thicken or contract
Mesothelium
type of epithelial tissue based on function, also called serous tissue, that lines the cavities of the body that have no openings to the outside
Reticular
type of loose connective tissue that forms the framework of the liver, bone marrow, spleen and lymph nodes
Epithelial tissue
type of tissue that protects, absorbs or secretes
Goblet cells
unicellular glands that secrete mucus
Aponeurosis
wide and flat tendon
