Soft Tissue

Question 1

What is the epithelia tissue?

Answer 1

Covers exposed surfaces
Lines internal passageways and chambers
Forms glands

Question 2

Structure of epithelia

Answer 2

Cells are in close association with little intercellular material
Forms a barrier between the organism and the environment
One free surface not in contact with other cells
Form glands
Glands then produce fluid secretions and are either attached or derived from epithelia

Question 3

Functions of epithelial tissue

Answer 3

Physical protection
Control permeability
Provide sensation
Produce specialised secretions

Question 4

Characteristics of epithelia that allow functions

Answer 4

Additional structures

Ability to regenerate

Question 5

What do exocrine glands do?

Answer 5

Pour secretions on to an epithelial surface directly or through ducts

Question 6

What do endocrine glands do?

Answer 6

Lose all contact with the epithelial surface from which they develop. They pour their secretions into the blood

Question 7

What is connective tissue?

Answer 7

Connects the epithelium to the rest of the body
Binds structures together
Forms a framework and support

Question 8

Functions of connective tissue

Answer 8

Structural framework for the body
Transporting fluids and dissolved materials
Protecting delicate organs
Supporting, surrounding and interconnecting other types of tissue
Storing energy reserves- triglycerides
Decency the body from invading organisms

Question 9

What is cartilage?

Answer 9

Close packed network of collagen and elastic fibres embedded in a firm matrix gel containing Chondrocytes and proteoglycans
Avascular

Question 10

Types of cartilage

Answer 10

Hyaline
Elastic
Fibrocartilage

Question 11

What is a membrane?

Answer 11

Structure formed from epithelial cells supported by connective tissue. They form a physical barrier and cover body surfaces

Question 12

Types of membrane

Answer 12

Mucous
Serous
Synovial
Cutaneous

Question 13

What is a mucus membrane

Answer 13

Thin epithelial cells and connective tissue
Lubricated by mucous or exposure to fluids
Line passageways that communicate with the exterior
Most surface to reduce friction and facilitate secretion

Question 14

What are serious membranes?

Answer 14

Line the sealed internal subdivisions of ventral body cavities
Thin and transparent
Firmly attached to body wall and organs they cover
Minimises friction due to being fluid between

Question 15

Types of serous membrane

Answer 15

Pleura
Peritoneum
Pericardium

Question 16

Functions of the skin

Answer 16

Protection of underlying tissues and organs against abrasion or chemical attack
Excretion of salts and organic wastes via glands
Maintenance of body temp through insulation or cooling via evaporation
Production of melanin gives protection against UV radiation
Synthesis of vitamin D
Storage of lipids in dermis
Detection of touch, pressure, pain and temperature