Epithelial Tissue

Question 1

What are the 4 major tissue types?

Answer 1

• Epithelial
• Connective
• Muscular
• Nervous

Question 2

What does epithelial tissue do? (3 points)

Answer 2

• covers body surface (absorbs and secretes)
• lines hollow organs
• forms glands

Question 3

What does connective tissue do?

Answer 3

Protect/support the body and its organs

Question 4

What does muscular tissue do? (3 points)

Answer 4

• moves/generates heat
• contracts to cause movement
• skeletal, cardiac and smooth muscle

Question 5

What does nervous muscle do? (2 points)

Answer 5

• primary form of communication

- brain, spinal cord and nerves

Question 6

What are the two divisions of epithelial tissue?

Answer 6

• covering and lining

- glandular

Question 7

What are the main roles of epithelial tissue? (4 points)

Answer 7

• has own nerve supply
• is avascular ( rely on blood vessels of the adjacent connective tissue)
• form boundaries
• has high rate of cell division

Question 8

What is an apical surface?

Answer 8

A free surface, the outside skin is free to the environment

Question 9

What is the name for single layered epithelial tissue?

Answer 9

Simple

Question 10

What is the name for single layered but looks like multiple layered epithelial tissue?

Answer 10

Pseudostratified

Question 11

What is the name for multiple layered epithelial tissue?

Answer 11

Stratified

Question 12

What is the name for flattened epithelial tissue?

Answer 12

Squamous

Question 13

What is the name for cube shaped epithelial tissue?

Answer 13

Cuboidal

Question 14

What is the name for column shaped epithelial tissue?

Answer 14

Columnar

Question 15

What are the functions of simple epithelial tissue?

Answer 15

Functions in diffusion, secretion and absorption

Question 16

What are the functions of stratified epithelial tissue?

Answer 16

Functions in preventing water and tear

Question 17

What are the functions of squamous shaped epithelial tissue?

Answer 17

Allow easy passage of materials right across the layer

Question 18

What are the functions of cuboidal and columnar shaped epithelial tissue?

Answer 18

Specialise for secretion and absorption

Question 19

What is the function of transitional epithelium?

Answer 19

Allows urinary organs to stretch and maintain protective lining while holding variable amounts of fluid without rupturing.

Question 20

What are the two types of glandular epithelial tissue?

Answer 20

• exocrine

- endocrine

Question 21

What is the function of exocrine epithelial? (3 points)

Answer 21

• generates a secretion which then empties via a duct onto a surface
• function is to produce substances I.e sweat, oil, saliva
• location, sweat and oil glands, salivary glands and pancreas

Question 22

What is endocrine epithelia? (3 points)

Answer 22

• secretes hormones and directly diffuse into blood without using ducts
• function, hormones regulate metabolic and physiological activities to maintain homeostasis
• location, pituitary glands, thyroid and parathyroid glands