5 - Epithelial Tissue

Question 1

What does epithelial tissue cover

Answer 1

Epithelial tissue covers the body and line cavities, hollow organs and tubes.

They are also found in glands of the endocrine system, where hormones are made that regulate different bodily functions, such as growth, reproduction and sleep

Question 2

How many types of simple epithelial tissue are there and what are they called?

Answer 2

There are 4 types of simple epithelial tissue

1 - simple cuboidal

2 - simple squamous

3 - simple columnar

4 - ciliated

Question 3

How many types of compound epithelium tissue are there and what are they called?

Answer 3

Simple compound epithelium and keratinised compound epithelium

Question 4

Simple cuboidal - shape and where there found

Answer 4

Shaped like little cubes

Found in the glands and lining of the kidney tubes as well as in the ducts of glands

Question 5

Simple columnar

Answer 5

Cells are rectangular in shape

Simple columnar epithelium can be ciliated or non-ciliated

The nuclei are elongated and are usually located near the base of cells

Ciliated is found in the female reproductive tract

Non-ciliated is found in the uterus and digestive tract

Question 6

Simple squamous

Answer 6

Simple squamous epithelium is a common site for filtration

They are found in the lungs; walls of capillaries and inside of blood and lymphatic vessels

Thy form the lining of cavities such as the mouth, blood vessels, heart and lungs and make up the outer layers of the skin

Question 7

Ciliated epithelium tissue

Answer 7

They are simple columnar epithelial cells, but they have fine hair like outgrowth, cilia on their free surfaces

These cilia wave in certain directions and are found in the air passages like the nose and in the uterus and Fallopian tubes of females

Question 8

Compound epithelial tissue

Answer 8

Can be simple or keratinised. It is arranged in a single or multi-layered sheet and usually covers internal and external surfaces of the body

Question 9

Simple compound epithelium

Answer 9

Consists of several layers of cells, the outer layer of which may be worn away

Simple compound epithelium tissue are found where the body is subject to wear and tear

Question 10

Keratinised compound epithelium

Answer 10

Like our skin, the outer Ayers of cells are dead, flattened and filled with a protein called keratin, this gives the tissue a waterproof outer layer