Unit 1: Histology

Question 1

intracellular vs extracellular

Question 2

epithelium

Answer 2

covers body, organs, on inside and outside
covering/lining, forms glands
includes cilia, apical surface, cell junctions, and basal surface

Question 3

cell junctions

Answer 3

important to connect epitheal cells laterally

Question 4

basement membrane

Answer 4

glue that holds epithelium to CT
* basal lamina
* reticular lamina (secreted by CT)
* CT underlying

Question 5

cilia/microvilli

Answer 5

hair like structure on the apical surface of the epithelium

Question 6

avascular

Answer 6

no blood supply to the epithelium
* gets nutrients from CT
* too far away cells degenerate
* a lot of cell turn over (death and new generation of cells)

Question 7

simple

Answer 7

1 layer of cells

Question 8

stratified

Answer 8

multiple stacked layers

Question 9

pseudostratified

Answer 9

respiratory lining, looks columnar but everything touches the bsal membrane

Question 10

squamous

Answer 10

wider than tall, looks like fried eggs

Question 11

cuboidal

Answer 11

tall as they are wide, look like sugar cubes

Question 12

columnar

Answer 12

taller than wide

Question 13

trasitional

Answer 13

in the urinary system
-non distended: empty, stratified cubodial
-distended: full, stretches to simple squamous

Question 14

connective tissue

Answer 14

quality of matrix determines the function of the CT

Question 15

matrix (fibers)

Question 16

vascular

Answer 16

blood supply

Question 17

fibroblasts

Answer 17

responsible for making fibers in ECM

Question 18

mast cells

Answer 18

produce/release histamine
increase blood flow to area
vasodialtes blood vessels

Question 19

macrophages

Answer 19

detection and desruction of bacteria

Question 20

loose ct

Answer 20

collagen is loosely packed
areolar
adipose

Question 21

dense ct

Answer 21

collagen is desnley packed
regualr
irregular

Question 22

cartilage

Answer 22

looks like eyeballs
hyaline is most abundant

Question 23

bone

Answer 23

looks like tree circles

Question 24

blood

Answer 24

tiny dots

Question 25

muscle tissue

Answer 25

shows striations

Question 26

nervous tissue

Answer 26

has neruons made up of cell body, dendrites, and axon

Question 27

bioposy

Answer 27

obtaining tissue to look at cells under microscope, looking for abnormalities

Question 28

apoptosis

Answer 28

programmed cell death

Question 29

necrosis

Answer 29

cell death caused by injury

Question 30

inflammation

Answer 30

response to tissue damage
red, heat, swelling, pain