Introduction

Question 1

List the 2 major groups of skin. (2)

Answer 1

1. Cutaneous (epithelial/ skin)

2. Connective tissue (synovial membranes)

Question 2

What 2 layers is cutaneous membrane composed of? (2)

Answer 2

1. Superficial epidermis

2. Underlying dermis

Question 3

What is the dermis mainly composed of?

Answer 3

Dense, fibrous connective tissue

Question 4

Is the cutaneous membrane wet or dry and why? (2)

Answer 4

1. Dry

2. It is exposed to air

Question 5

What are mucous membranes composed of?

Answer 5

Epithelium resting on loose connective tissue membrane

Question 6

What is the fancy name for the epithelium resting on loose connective tissue for mucous membranes?

Answer 6

Lamina propria

Question 7

Define: lamina propria

Answer 7

Epithelium resting on loose connective tissue membrane → part of the mucous membranes

Question 8

What is the main function of epithelial tissue?

Answer 8

Line the body’s cavities that open to the exterior such as hollow organs

Question 9

What is the location of the epithelial membrane?

Answer 9

Mucosa

Question 10

What is the mucosa mostly composed of (type of cell)?

Answer 10

Stratified squamous epithelium

Question 11

Are the mucous membranes wet or dry?

Answer 11

Wet

Question 12

What are mucous membranes adapted for?

Answer 12

Absorption or secretion

Question 13

State the name for serous membranes.

Answer 13

Serosa

Question 14

Describe the composition of the serosa. (1)

Answer 14

Squamous epithelium resting on a thin layer of areolar connective tissue

Question 15

What is the main function of serous membranes?

Answer 15

Line the body cavities that are closed to the exterior

Question 16

Differentiate between the main function of most epithelial tissues and the serous membrane. (2)

Answer 16

1. Most epithelial membranes line the body’s cavities that are OPEN to the exterior (hollow organs)
2. Serous membranes line the body cavities that are CLOSED to the exterior

Question 17

What layer of the serosa line the ventral body and how does it do so? (2)

Answer 17

1. Parietal layer

2. Folds in on itself to form the visceral layer (covers the outside of organs)

Question 18

What are serous layers separated by and why? (2)

Answer 18

1. Serous fluid

2. Lubricates the organs to allow them to slide easily without friction

Question 19

What category of membrane does synovial membrane fall under?

Answer 19

Connective tissue membrane

Question 20

Describe the composition of synovial membrane. (3)

Answer 20

1. Loose areolar connective tissue
2. Contains no epithelial cells
3. Contain bursae

Question 21

Define: bursae

Answer 21

Small sacs of connective tissue containing synovial fluid

Question 22

What is unique about synovial membranes? (2)

Answer 22

1. Cushion organs as they move against each other during muscle activity
2. Also reduces friction of joints

Question 23

List 4 types of damage the skin protects against. (4)

Answer 23

1. Mechanical
2. Thermal
3. UV
4. Chemical

Question 24

What are the 3 main purposes of skin in general? (3)

Answer 24

1. Protect
2. Insulate
3. Cusion

Question 25

State the name of the acidic secretions produced by the skin, and the purpose of these secretions. (2)

Answer 25

1. Acid mantle

2. Protects against bacterial invasion