Cells and tissues

Question 1

What is Oil red O?

Answer 1

An oil soluble dye
Only works on frozen tissue

Question 2

What are the basic tissue types?

Answer 2

Connective
Muscle
Epithelial
Nerve

Question 3

What are connective tissues derived from?

Answer 3

Mesoderm

Question 4

What are the 2 types of connective tissues?

Answer 4

Proper connective tissue
Specialised connective tissue

Question 5

What is the extracellular matrix composed of?

Answer 5

Ground substances (water, minerals, glycoproteins)
Fibres (protein filaments made by fibroblasts)

Question 6

What are the types of proper connective tissue?

Answer 6

Loose connective tissue
Dense connective tissue

Question 7

What is loose connective tissue made from?

Answer 7

Cells (fibroblasts, adipocytes, lymphoid)
Extracellular matrix

Question 8

When does adipose tissue form?

Answer 8

If/when the adipose cells in loose connective tissue accumulate fat

Question 9

What does adipose tissue do?

Answer 9

Insulates and cushions internal organs and joints
Stores energy

Question 10

What does cartilage do?

Answer 10

Protects and cushions bone where they meet to form joints

Question 11

What are the types of muscle tissues?

Answer 11

Skeletal muscle
Cardiac muscle
Smooth muscle

Question 12

What is epithelial tissue?

Answer 12

A thin layer of cells lining the surface of the skin and hollow internal organs

Question 13

What are ganglia?

Answer 13

Groups of neuronal cell bodies located outside the CNS

Question 14

How many layers does stratified epithelium contain?

Answer 14

2 or more

Question 15

How many layers does simple epithelium contain?

Answer 15

1

Question 16

What does the epithelium function as?

Answer 16

A barrier

Question 17

What is smooth muscle specialised for?

Answer 17

Continuous contractions of relatively low force
(e.g. moving food through the gut, regulating blood flow etc)

Question 18

What is skeletal muscle composed of?

Answer 18

Muscle fibres bound together by collagen