Anatomy Ch 4 (Tissues)

Question 0

histology

Answer 0

collection of specialized cells that perform specific funtions

Question 1

How many different types of cells are there?

Answer 1

200

Question 2

name the the 4 types of tissues

Answer 2

epithelia
neural
muscle
connective

Question 3

epithelial tissue includes ______ and _______?

Answer 3

epithelia and glands

Question 4

epithelia

Answer 4

layers of cells that cover internal or external surfaces

Question 5

glands

Answer 5

secreting cells derived from epithelia

Question 6

list characteristics of epithelia tissue

Answer 6

cells bound closely together

a free (apical) surface exposed to environment or to some internal chamber

attached to underlying connective tissue by basement membrane

avascular

continuous regeneration of damaged or lost cells

Question 7

list functions of epithelia

Answer 7

provide physical protection

control permeability

provide sensation

produce specialized secretions

Question 8

what are the two types of gland cells?

Answer 8

exocrine and endocrine

Question 9

exocrine

Answer 9

secretions discharged onto the surface of the epithelia

Question 10

endocrine

Answer 10

secretions are released into the surrounding tissue fluid and blood
(hormones)

Question 11

(CAM)

Answer 11

cell adhesion molecule- transmembrane protein that holds epithelial plasma membranes together

Question 12

name the 3 common intercellual connections

Answer 12

tight junctions
gap junctions
desmosomes

Question 13

tight junction

Answer 13

lipid layers of adjacent plasma membranes tightly bound together by interlocking membrane proteins

Question 14

adhesion belt

Answer 14

(CAM) binds cells to their neighbors

Question 15

gap junction

Answer 15

two cells held together by embedded membrane protein groups called connexons

Question 16

desmosome

Answer 16

plasma membranes locked together by intercellular cement and by membrane proteins connected to a network of intermediate filaments
(spot desmosomes and hemidesmosomes)

Question 17

two types of cell layering are ______and ______

Answer 17

simple and stratified

Question 18

the three cell shapes are ________, _________, and _________

Answer 18

squamos, cuboidal, and columnar

Question 19

squamos epithelium

Answer 19

cells are thin and flat

nucleus occupies the thickest portion of each cell

Question 20

cuboidal

Answer 20

hexagonal or square appearance

nuclei lie near the center of the cell

Question 21

columnar epithelia

Answer 21

long hexagonal or rectangular appearance

nuclei crowed in a narrow band close to basement membrane

Question 22

where are simple squamos epithelium found?

Answer 22

protected region where absorption takes place or where a slippery surface reduces friction

Question 23

function and location of simple cuboidal epithelium

Answer 23

limited protection, secretion, absortption

glands; ducts; portions of kidney tubules; thyroid gland

Question 24

function and location of simple columnar epithelium

Answer 24

protection, secretion, absorption

lining of stomach, intestine, gallbladder….

Question 25

function and location of pseudostratified epithelia

Answer 25

protection and secretion

Question 26

exocrine glands have ducts. T/F?

Answer 26

True

Question 27

connective tissue

Answer 27

provides protective structural framework for other tissue types

Question 28

what are the 3 familiar connective tissue types?

Answer 28

blood
bone
fat

Question 29

what are the 3 basic components of all connective tissues?

Answer 29

specialized cells

protein fibers

ground substance

Question 30

matrix

Answer 30

extracellular protein fibers and ground substance that surrounds the cells