Epithelial Tissue

Question 1

Groups of cells that are similar in structure and perform a common function are called?

Answer 1

Tissue

Question 2

What are the four(4) major types of tissues?

Answer 2

Epithelial: covering
Connective: support
Muscle: movement
Nervous: control

Question 3

A sheet of cells that covers a body surface or lines the body cavity is called?

Answer 3

Epithelial tissue

Question 4

List 5 characteristics of epithelial tissue

Answer 4

Innervation: lots of nerve endings
Cellularity: composed almost entirely of cells
Polarity: specific top and bottom
Avascularity: no blood vessels
High regeneration capacity: they are replaced quickly as they are frequently damaged

Question 5

Give four (4) functions of epithelial tissue

Answer 5

Physical protection from dehydration, abrasion etc
Selective permeability
Sensation
Secretion

Question 6

Each epithelium tissue is given how many names?

Answer 6

Two

Question 7

The first name of epithelial tissue indicates?

Answer 7

The number of cell layers present eg
Simple: one layer
Stratified: more than one layer

Question 8

The second name of epithelial tissue indicates what?

Answer 8

The shape of the cells eg
Squamous
Cuboidal &
Columnar

Question 9

The function of simple squamous epithelium is to?

Answer 9

Allow materials to pass through by diffusion and filtration, andsecretes lubricating substances

Question 10

The locations of simple squamous epithelium include?

Answer 10

Air sacs of the lungs and the lining of the heart, blood vessels and lymphatic vessels

Question 11

The function of simple cuboidal epithelium is

Answer 11

Secretion & absorption

Question 12

The locations of simple cuboidal epithelium include?

Answer 12

Kidney tubules
Ovary surface
Ducts and secretory portions of small glands

Question 13

The function of simple columnar epithelium is?

Answer 13

Secretion of enzymes and mucous

& absorption

Question 14

The locations of simple columnar epithelium include?

Answer 14

Ciliated tissues including the bronchi, uterine tubes, and uterus; smooth
Nonciliated tissues are in the digestive tract, bladder, gall bladder

Question 15

The function of pseudostratified columnar epithelium is?

Answer 15

Secretion of mucous; ciliated tissue moves mucous

Question 16

The locations of pseudostratified columnar epithelium include

Answer 16

Ciliated tissue lines the trachea and much of the upper respiratory tract
Nonciliated type in male’s sperm carrying ducts and ducts of large glands

Question 17

The function of stratified squamous epithelium is?

Answer 17

Protects against abrasion

Question 18

The location of stratified squamous epithelium include?

Answer 18

Non keratinized type forms the moist linings of the esophagus, mouth and vagina
Keratinized type forms the epidermis

Question 19

The function of stratified cuboidal epithelium is?

Answer 19

Protection

Question 20

The locations of stratified cuboidal epithelium include?

Answer 20

Large ducts of mammary glands, sweat glands and pancreas
Ovarian follicles
Seminiferous tubules

Question 21

The function of transitional epithelium is to?

Answer 21

Allow the urinary organs to expand and stretch

Question 22

The locations of transitional epithelium include?

Answer 22

Lines the ureters, bladders and part of the urethra

Question 23

The location of stratified columnar epithelium is?

Answer 23

The male urethra and the ducts of some glands.

Question 24

The function of stratified columnar epithelium is

Answer 24

Secretion and absorption