Chapter 4

Question 1

Science of study of tissues

Answer 1

Histology

Question 2

examination of cells and tissues to help in diagnosis

Answer 2

Pathology

Question 3

a medical procedure that involves taking a small sample of body tissue so it can be examined under a microscope.

Answer 3

Biopsy

Question 4

Main types of body tissues

Answer 4

Epithelial
Connective
Muscular
Nervous

Question 5

Cell junction types

Answer 5

tight junction
adherens
desmoses
hemidesmoses
gap junction

Question 6

type of junction that prevents the passage of substances between cells

Answer 6

Tight junction

Question 7

a dense layer of protien in the adherens junction that atteaches both to membrane proteins and to microfilaments of the cytoskeleton

Answer 7

Plaque

Question 8

transmembrane glycoprotein that join the cells in adherens junctions

Answer 8

Cadherins

Question 10

difference between the plaque in desmoeses and the plaque ni adhern

Answer 10

in desmoses the plaque is attached to intermediate filaments (keratin)

in adherns cell junction the plaque is attached to microfilaments

Question 11

General Function of epithelial tissues

Answer 11

protection, filtration, secretion, absorbtion and exertion
they combine with nervous tissue to form special organs for smell hearing, vision and touch

Question 12

epithelial tissue surfaces

Answer 12

apical surface
lateral surface
basal surface

Question 13

epithelial face that faces the body surface, a cavity or any internal space

Answer 13

apical surface

Question 14

faces the adjacent cells on either side
may contain tight junctions, adherens, desmoses and gap juction

Answer 14

Lateral surface

Question 15

deepest layer of the epithelial cells

Answer 15

basal surface

Question 16

types of basement membrane

Answer 16

1) Basal Lamina ( made by epithelial)
2) Reticular Lamina (made by connective tissue

Question 17

basement membrane that has proteins as collagen produced by fibroblasts

Answer 17

Reticular Lamina

Question 18

epithelial tissues are classified according to layers according to

Answer 18

Simple
Pseudostratified
Stratified

Question 19

epithelial tissues are classified according to shape as

Answer 19

squamos
cuboidal
coloumnar
transitional

Question 20

Location of Simple Squamous epithelial tissues

Answer 20

1) Endothelium that lines the cardiovascular and lymphatic system
2) Mesothelium that forms the epithelial layer of serous membrane
3) In airsacs of lungs, bowman’s capsule of kidneys and inner surface of lympanic membrane ( eardrum )

Question 21

Function of simple squamous tissue

Answer 21

Filtration (in kidney)
diffusion (oxygen into blood vessels of lungs)
secretion ( in serous membrane )

Question 22

single layer of flat cells that looks like tiled floor when viewed from apical surface

Answer 22

Simple Squamous tissue

Question 23

Single layer of cube shaped cells, with centrally located nucleus

Answer 23

Simple cuboidal epithelial tissue

Question 24

Location of Simple cuboidal epithelial tissue

Answer 24

Surface of ovary
Surface of capsule of lense of the eye
lines kidney tubules
posterior surface of retina of eye
thryoid gladns and some ducts in the pancreas

Question 25

Function of simple cuboidal tissue

Answer 25

secretion and absorbtion

Question 26

single layer of column like cells the nuclei is oval near the base of the cell containing epithelial cells iwth microvilli at the apical surface and goblet cells

Answer 26

simple Non ciliated columnar

Question 27

Location of simple Non ciliated columnar

Answer 27

Lines gastrointestinal tract lines ducts of many glands and gallbladder

Question 28

function of simple Non ciliated columnar

Answer 28

Secretion and absorbtion secretion lubricates linings of digestive, respiratory and reproductive tracts and most of the urinary tract help in keeping the lining of the stomach safe from the acidic gastric juice

Question 29

single layer of cilated column like cells with oval nuclei near base of cells with goblet cells scattered

Answer 29

Simple cilated columnar tissues

Question 30

Location of Simple cilated columnar tissues

Answer 30

lines bronchioles of the respiratory tract fellopin tubes uterus paranasal sinuses central canal of spinal cord ventricles of brain

Question 31

functions of Simple cilated columnar tissues

Answer 31

1) the cilia moves mucus and foriegn particles towards throat where they can be coughed out 2) cilia also helps in moving oocytes from ovaries through fallopian tubes to the uterus