Epithelial and Glands

Question 1

An aggregation of cells that are similar in structure and function to perform a specific function is ……

Answer 1

A tissue.

Question 2

An association of cells and intercellular materials morphologically and physiologically integrated for the performance of specific functions is a…..

Answer 2

Tissue

Question 3

There are four types of tissues which are

Answer 3

Epithelium, Connective Muscle and Nervous Tissue.

Question 4

Epi means…. while thelium means….

Answer 4

Upon, …..Nipple.

Question 5

Define the term “Epithelium.”

Answer 5

A unilaminar or multilaminar membranous sheet of cells, tissues which covers the body surface and lines the body cavities or tubular passages.

Question 6

True or false the epithelium is composed of regularly arranged layers of cells with no intercellular connective tissue.

Answer 6

false- the epithelium is composed of regularly arranged layers of cells with little intercellular connective tissue.

Question 7

Epithelium is a tissue consisting of an aggregation of cells in apposition, specialized for …….,…..,…,…functions and resting on a …………….

Answer 7

Absorptive, secretory, excretory or protective functions and lying on a basement membrane

Question 8

Describe the origin and distribution of the epithelium

Answer 8

Ectoderm- epidermis of the skin and epithelium of the cornea.covers the body surface, sebaceous and mammary glands.

Endoderm-Alimentary Tract, Liver,, Pancreas, Gastric Glands, IT glands.

Mesoderm- Endothelium- Lining of blood vessels
Mesothelium- lining of serous cavities.

Question 9

List the characteristics of the epithelium

Answer 9

*They are regularly arranged with little intercellular tissues.
*They are a vascular; doesn’t have blood supply but has nervous supply.
*All epithelial tissues rest on a basement membrane.
*

Question 10

True or false all epithelial cells rests on a basement membrsne

Answer 10

True

Question 11

What is the function of the basement membrane?

Answer 11

It acts as a substrate on which epithelium can attach to as well as grow and regenerate after injuries.

Question 12

Based on type of cells, epithelium can be classified as ……….

Answer 12

Squamous
Columnar
Cuboidal

Question 13

Based on number of layers of cells epo

Answer 13

Simple(one layer( , Stratifiedand pseudo stratified.

Question 14

Example of a)keratinised stratified squamous epithelium and b)non keratinised squamous epithelium are?

Answer 14

a) Skin

b) oral carvity, oesophagus , rectum.

Question 15

True or false hepatocytes are epithelial cells

Answer 15

True they contain a majority of eppenchyma cells.

Question 16

List two specialised cells of the epithelium

Answer 16

-Endothelium, -Mesothelium forms the outside surface layer of the pericardium, pleura and pn

Question 17

Sheets of epithelial cells may be modified into secretory structures known as

Answer 17

Glands

Question 18

Proliferation and high turnover is a characteristics of epithelial cells

Answer 18

True. Others include polarity and vascularity

Question 19

True or false Epithelial mass es(secretory epithelium are vascular

Answer 19

True

Question 20

Basement membrane is made up of ……..

Answer 20

Polysaccharides and glycoprotein materials, plus some type of collagen.

Question 21

Parts of the basement membrane are

Answer 21

Lamina Lucida. Or Lamina Dermal.