Tissue Types

Question 1

epithelial tissue: forms what? properties of cells?

Answer 1

forms boundaries between body and outside world and between internal compartments - sheets cover body surface and line body cavities and tubes. strongly adherent, closely spaced cells

Question 2

epithelial tissue: mediates what movement?

Answer 2

polarized movement of substances between body and outside world and between compartments of body

Question 3

epithelia named on basis of (2)

Answer 3

number of layers of cells. shape of cells in outermost layer

Question 4

3 examples of simple epithelia

Answer 4

simple squamous = alveoli. simple cuboidal = kidney tubules, glands. simple columnar = gut lining

Question 5

3 types of non simple epithelial

Answer 5

stratified squamous = skin. transitional epithelium = bladder/ureters. ciliated pseudostratified = respiratory tract

Question 6

purpose of simple columnar

Answer 6

absorption

Question 7

first layer of stratified squamous epithelium

Answer 7

stem cells

Question 8

transitional epithelium appearance changes?

Answer 8

with stretching: cells look like they are stacked on top of each other, dome shaped - but then will stretch out and flatten

Question 9

connective tissue: cells embedded in? provides?

Answer 9

in abundant extracellular matrix. structural + metabolic support to other tissues and organs

Question 10

connective tissue: links what? 2 other functions?

Answer 10

links different tissues together; links tissues and organs together to form overall body form. wound repair + protects body against infection (immune cells)

Question 11

types of connective tissue (3, each divided into 2)

Answer 11

proper: loose and dense. supportive: cartilage and bones. fluid: blood and lymph

Question 12

loos connective tissue cells: sit in?

Answer 12

ground substance of connective tissue: fibrocytes, adipocytes, mesenchymal cells - also have macrophages, mast cells, plasma cells, phagocytic cells

Question 13

key connective tissue cell

Answer 13

fibroblasts: secrete ground substance, collagen, reticular fibers, elastic fibers

Question 14

specialized forms of connective tissue (3)

Answer 14

cartilage/bone. blood. lymphatic tissue

Question 15

muscle tissue: what? generates what?

Answer 15

elongated cells specialized for contraction - force for movement

Question 16

3 types of muscle tissue

Answer 16

skeletal: powerful but easily fatigued. cardiac: continuous, rhythmic beating. smooth: slow sustained contractions

Question 17

important thing about cardiac muscle

Answer 17

branching = intercalated disks = contractile signalling spreads like a wave since there are junctions for ions to cross

Question 18

nervous tissue: what? purpose? generates?

Answer 18

large cells with elongated cell processes. receives, processes, integrates signals from within body and from external environment