Question | Answer |
actin | protein that, with myosin, contracts muscle fibers |
adipose | fat-storing tissue |
chondrocyte | cartilage cells |
cilia | microscopic, hair-like processes on exposed surfaces of certain epithelial cells |
collagen | protein in white fibers of connective tissues and in bone matrix |
cytology | study of cells |
elastin | protein that comprises the yellow, elastic fibers of connective tissue |
erythrocytes | red blood cells |
histology | study of tissues |
intercalated disc | membranous boundary between cardiac muscle cells |
intercellular space | tissue space between cells other than blood cells |
leukocyte | white blood cells |
ligaments | cord or sheet of connective tissue binding two or more bones at a joint |
muscle fiber | myocytes |
myocyte | muscle cell |
myosin | protein that, with actin, contracts muscle fibers |
neuroglial | specialized cell of the nervous system that produces myelin, communicates between cells and maintains the ionic environment |
neurons | nerve cell |
osseous | bone tissue |
osteocyte | bone cell |
plasma | fluid portion of circulating blood |
simple | only one layer |
squamous | flat |
stratified | two or more layers |
striated | striped |
tapered | smaller on ends |
tendons | connects muscles to bones |
thrombocyte | platelet |
tissue | group of similar cells working together to perform a function |
voluntary | can be consciously controlled |
goblet cells-what they are, where they're found, and what they do | flask-shaped glandular cells that are scattered among the columnar cells of simple columnar epithelium and secretes mucus onto the free surface of the tissue to protect it |
four general types of tissues | connective, epithelium, muscular and nervous |
three main characteristics of connective tissue | cells are not closely packed, commonly contains blood vessels, lots of matrix |
three main characteristics of epithelium tissues | lacks blood vessels, rapid division, cells are closely packed together |
three main characteristics of muscular tissues | contractile, involuntary or voluntary, striated or non-striated |
three main characteristics of nervous tissue | conducts impulses, star-shaped, cytoplasmic extensions |
simple squamous | flat and irregular cells, broad and thin nuclei; alveoli, walls of capillaries, linings of blood and lymph vessels |
simple cuboidal epithelium | cube-shaped, large, round nuclei; surface of ovaries, linings of kidney tubules and linings of ducts of certain glands |
simple columnar | elongated cells; linings of uterus, stomach and intestines |
stratified squamous | thick tissue, new cells push older cells out; skin, mouth, throat, vagina, and anal canal |
stratified columnar | cilia and goblet cells; trachea |
stratified cuboidal | two or more layers of cube-shaped cells; pancreas and ovaries |
transitional epithelium | changes in response to tension; inner lining of urinary bladder and lining of ureters and part of urethra |
loose connective | fibroblasts with collagenous and elastic fibers; beneath skin, between muscles, and beneath epithelial tissues |
adipose | large, oil-filled cells; beneath skin, around kidneys, behind eyeballs, on surface of heart |
dense connective | lots of collagenous fibers, whitish; tendons and ligaments, deeper layers of skin |
carilage | chondrocytes in gel matrix; nose, ends of bones, rings in the walls of respiratory passages |
bone | osteocytes in Calcium Carbonate matrix; bones of skeletons |
blood | erythrocytes, leukocytes, thrombocytes in plasma; located throughout the body in a closed system of blood vessels and heart chambers |
skeletal | made of actin and myosin, voluntary; attached to bones |
smooth | involuntary, uninucleated; hollow internal organs |
cardiac | branched fibers, intercalated disks, involuntary; heart |
nervous | neurons and neuroglial cells, conducts impulses; nerves, spinal cord, brain |