Tissue and the integumentary system

Question 1

What are the four main types of tissue?

Answer 1

epithelia, connective, muscle and nervous tissue.

Question 2

Where is epithelia tissue found?

Answer 2

it is found in the body coverings and lining and also glands.

Question 3

What is the epithelial tissue function?

Answer 3

its function is to protect, absorption, filtration and secretion.

Question 4

Where is connective tissue found?

Answer 4

it is found everywhere in the body.

Question 5

What is the connective tissue’s function?

Answer 5

its function is to protect, support and binding

Question 6

Where is the muscle tissue found?

Answer 6

it is found in the skeletal, cardiac and smooth muscle.

Question 7

What is the muscle tissue’s function?

Answer 7

its function is to contact to provide movement with the skeletal, pumping of the heart and squeezing and relaxing of the walls and tubes.

Question 8

Where is the nervous tissue found?

Answer 8

it is found in neutrons and nerve support cells.

Question 9

What is the nervous tissue’s function?

Answer 9

its function is to communicate within the body, conduction of the electrical impulses and control of the body function.

Question 10

What are the overall functions of the epithelial tissue?

Answer 10

> covering and lining the inside and out of you body.
forming glands
secreting hormones and other substances
protecting deeper tissue from injury and infection.

Question 11

In depth, where is the epithelia tissue located?

Answer 11

> covering of the external surface of the body
lining the internal body cavities
coating internal and external walls of the organs and also small glands

Question 12

Explain simple squamous epithelium

Answer 12

> it is when there is only one layer of cells therefore it is very thin.
this makes them suitable for lining surfaces where substances are required to diffuse across quickly
e.g. tiny air sacs of the lungs where oxygen diffuses.

Question 13

Explain simple cuboidal epithelium

Answer 13

> it is thin and suitable for where substances need to diffuse rapidly
e.g. kidneys

Question 14

Explain simple columnar epithelium

Answer 14

> sometimes has a top surface folded many times to increase the surface area of the cell.
e.g. in small intestines to increase the surface area

Question 15

Explain stratified squamous epithelium

Answer 15

> contains many layers of flattened cells

> e.g. skin

Question 16

Explain squamous

Answer 16

> flattened cells
forms the outer layer of the skin
lines the mouth
small substances can diffuse through a single layer of these cells quickly

Question 17

Explain cuboidal

Answer 17

> cells are approximately squared shaped

> located in the glands

Question 18

Explain columnar

Answer 18

> cells are longer than they are wide

> lines are airways and intestines

Question 19

What is another word for fat cells?

Answer 19

adipocytes

Question 20

What is connective tissue made of?

Answer 20

cells, fibres and extracellular matrix

Question 21

Where can you find connective tissue?

Answer 21

> bone
> cartilage
> dense connective tissue e.g. tendons and ligaments 
> lose connective tissue e.g. adipose
> blood

Question 22

What are two main types of cells in the nervous tissue?

Answer 22

> neurons (nerve cells)

> glial cells (neuroglia)

Question 23

What is the function of the connective tissue?

Answer 23

the function of the nervous tissue is to regulate and control all body functions

Question 24

Describe the skeletal muscle characteristics

Answer 24

> is attached to bone or skin
> it produces body movement and facial expressions 
> it is under voluntary control
> multinucleate 
> cells have long cylindrical shape

Question 25

Describe the cardiac muscle characteristics

Answer 25

``` > only located in the heart > is not able to be controlled meaning it s involuntary > it is striated > cells are connected by "branches" > uninucleate ( only one nucleus ) ```

Question 26

Describe smooth muscle characteristics

Answer 26

> in walls of hollow organs ( stomach, intestines, blood vessels, uterus ) > involuntary control > no striations > uninucleate > cells are spindle shaped ( tapered at the ends )

Question 27

What organs make up the integumentary system?

Answer 27

``` > skin > hair > nails > sweat glands > sebaceous glands ( oil glands ) ```

Question 28

Describe the general function of the skin

Answer 28

> skin is the largest organ in the body weighing 4-5kgs > epidermis is consisting of stratified squamous epithelium > demis is consisting of lose and dense connective tissue

Question 29

Describe the hairs general function

Answer 29

> the hair on your scalp guards the head against physical trauma, heat lose and sunburn > eyelashes shield the eyes > nasal hairs filter large particles from inhaled hair

Question 30

Describe the nails general function

Answer 30

> nails created a clear, protective covering over dorsal surface of the tips of the fingers and toes > nails are used to pick up small objects and starch itches

Question 31

Describe the sweat glands general functions

Answer 31

> sweat glands are called sudoriferous glands | > you have up to 3 million of them

Question 32

What are the two main types of sudoriferous glands ( sweat glands )

Answer 32

eccrine glands and apocrine glands

Question 33

Describe the sebaceous glands ( oil glands ) general function

Answer 33

> these glands are smaller on the abdomen and limbs > they are larger on the face, neck and upper chest > it softens and lubricates hair, preventing it from becoming brittle > slows water loss from skin > kills bacteria

Question 34

What are the different layers of the skin

Answer 34

epidermis, demis and hypodermis