Anatomy Chapter 4 Tissues

Front 1

Tissue

Back 1

a group of cells of similar structure taht perform a common function.

Front 2

four basic types fo tissue

Back 2

epithelium, connective tissue, muscle tissue, and nervous tissue

Front 3

epithelium

Back 3

a sheet of cells taht coers a body surface or lines a body cavity and also forms most of the body's glands. protect and sensory reception and also function in secretion, absorption, ion transport

Front 4

characteristics that distinguish epithelial tissues

Back 4

1-cellularity 2-specialized contacts 3-polartiy 4-suppport by connective tissue 5-avascular but innervated 6-regeneration

Front 5

classification of cells

Back 5

first name indicates the number of cell layers the last name describes the shape of the cells. simple is 1 layer while stratified is 1+. Squamous-flat cells. cuboidal-shaped like cubes. columnar-taller than they are wide.

Front 6

nucleus of cell shapes

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squamous- disc shaped. cuboidal-sperical. colulmnar-oval elongated.

Front 7

squamous function related to layers

Back 7

1-diffusion and filtration and secretion in serous membranes. 2-protection

Front 8

cuboidal function related to layers

Back 8

1-secretion and absorption, ciliated types propel mucus or reproductive cells. 2- protection these cells are rare in humans

Front 9

columnar function related to layers

Back 9

1-secretion and absorption, ciliated types propel mucus or reproductive cells. 2- protection these cells are rare in humans

Front 10

simple squamous epithelia

Back 10

single layer of flattened cells with disc-shaped central nuclei and sparse cytoplasm, the simplest of epithelia. Allows passage of materials by diffustion and filtration in sites where protection is not importatnt secretes lubricating substances in serosae. located in teh kidney glomeruli and corpuscles, air sacs of lungs, lining of heart, blood vessels and lymphatic vessels, lining of ventral body cavity (serosae). Endothelium and mesothelium. slippery.

Front 11

simple cuboidal epithelia

Back 11

single layer of cubelike cells with large spherical central nuclei. secretion and absorption. located in kidney tubules, dects and secretory portions of small glands, ovary surface.

Front 12

simple columnar epithelium

Back 12

single layer of tall cells with round to oval nuclei, some caells bear cilia, layer may contain mucus secreting unicellular glands (goblet cells). Absorption secretion of mucus, enzymes, and other substances. ion transport. ciliated type propels mucus (or reproductive cells by ciliary action. Nonciliated type lines most of teh digestive tract (stomach to anal canal) gallbladder, and excretory ducts of some glands, ciliatd variety lines small bronchi, uterine tubes, and some regions of the uterus.

Front 13

pseudostratified columnar epithelium

Back 13

single layer of cells of differing heights, some not reaching teh free surface, nuclei seen at different levels, may contain goblet cells and bear cilia. secretion particularly of mucus propulsion of mucus by ciliary action. nonciliated type in males sperm carrying ducts and ducts of large glands, ciliated variety lines the trachea most of teh upper respiratory tract.