Tissues

Question 1

What is the definition for tissues?

Answer 1

An aggregation of specialised cells carrying out a specific function

Question 2

What are the four primary tissue types in the human body?

Answer 2

Epithelial tissue
Muscle tissue
Connective tissue
Nerve tissue

Question 3

What are epithelial tissues?

Answer 3

Form a continuous layer
Covering or lining the internal and external surfaces of the body

Question 4

What are the four types of epithelial tissues?

Answer 4

Squamous epithelium
Cuboidal epithelium
Columnar epithelium
Ciliated columnar epithelium

Question 5

Describe the squamous epithelium

Answer 5

Flattened cells
Found lining body cavities
E.g. mouth & alveoli

Question 6

Describe the cuboidal epithelium

Answer 6

Cube-shaped cells
Found lining the kidney tubules and ducts of glands

Question 7

Describe the columnar epithelium

Answer 7

Elongated column-shaped cells
Found lining the stomach and intestines

Question 8

Describe the ciliated columnar epithelium

Answer 8

Column-shaped cells that have fine hair-like projections (cilia) on the surface
E.g. in the trachea & oviduct

Question 9

What is the purpose of connective tissues?

Answer 9

Connects and anchors structures
Gives strength and support to the body and its organs

Question 10

How does collagen support connective tissues?

Answer 10

Collagen proteins form extracellular fibres that give strength to dense connective tissues
Such as the tendons and ligaments
Collagen is also found in the tough outer layer of large blood vessels

Question 11

What is the purpose of muscle tissues?

Answer 11

Nerve impulses bring about muscle contraction
Causes muscles to shorten
As contraction of the muscle ends, normal muscle length is once again attained