Tissues

Question 1

4 basic tissue types?

Answer 1

Epithelial, connective, muscle, and nervous.

Question 2

What is epithelial tissue?

Answer 2

Group of tissues designed to cover the external surfaces and line the internal surfaces of an animals body.

Question 3

What is the Basement membrane?

Answer 3

Fibers that cement epithelial tissue to CT.

Supplies O2 and nutrition and carries away waste.

Question 4

Epithelial tissue is smooth in blood vessels to…

Answer 4

Allow easy passage of blood components.

No stimulus for clot formation.

Question 5

Brush border (microvilli) are found in…

Answer 5

The intestine.

Greatly increases surface area for absorption.

Question 6

Cilia are found where?

Answer 6

In the respiratory tract.

Coordinated movement of substances.

Question 7

Where is keratin found?

Answer 7

The skin.

It’s waterproof protection.

Question 8

Simple squamous

Answer 8

Very thin and delicate.
Easily allows passage (gas exchange, kidney filtration)
Can only be in we’ll protected areas!!

Question 9

What does simple squamous tissue do?

Answer 9

Reduces friction (flat and smooth). 
Great for lining vessels!

Question 10

What is endothelium?

Answer 10

Lining of blood vessels!!

Question 11

Simple cuboidal tissue?

Answer 11

Delicate.
Found in areas of secretion and absorption, aka glands. (Thyroid, liver, salivary glands..)
Play a BIG role in endocrine and exocrine tissues.

Question 12

Simple columnar?

Answer 12

Line entire GI tract.
Form dense microvilli.
Contain GOBLET CELLS which ->
(Manufacture and store mucus)

Question 13

Microvilli are?

Answer 13

The little bumps in intestine that make more surface area.

Question 14

Stratified squamous?

Answer 14

Areas of mechanical and chemical stress. (Entrance to body)
Outer layer is worn off and replaced by lower level.
Start cuboidal then lose nucleus and flatten.

Question 15

Epithelial tissue functions by protecting…

Answer 15

Keratinized skin, melanin; line and cover other tissues.

Stratified squamous

Question 16

Epithelial tissue functions by absorbing…

Answer 16

GI nutrients

Columnar

Question 17

Epithelial tissue functions by filtering…

Answer 17

Renal tubular epithelium filters waste from the blood to be excreted.
(Simple squamous)

Question 18

Epithelial tissue functions by sensory, secretion, and excretion…

Answer 18

Cuboidal

Question 19

Epithelial tissue glands. 2 types?

Answer 19

Glands only found in epithelial tissue.
Endocrine.
Exocrine.

Question 20

Exocrine glands

Answer 20

Exocrine-secrete product to immediate area via DUCTS.
Unicellular glands =goblet cell
Multicellular glands=serous (sweat) and mucous (mucus)

Question 21

Endocrine glands…

Answer 21

Endocrine-secrete product (hormones) to entire body via bloodstream.

Question 22

Connective tissue functions…

Answer 22

Structural And metabolic.
Protects organs.
Shock absorption.
Insulates the body.
NRG reserve.
Frame to support body.
Transport.
Healing process after injury.
Control over invading pathogens.

Question 23

What are membranes?

Answer 23

Thin, protective layers of tissue.

-epithelial sheet bound to underlying layer of connective tissue!

Question 24

4 types of membranes…

Answer 24

Mucous.
Serous.
Cutaneous.
Synovial.

Question 25

What is the mucus membrane?

Answer 25

Line & protect organs that have axes to the outside environment. Goblet cells found in mucus tissue are responsible for secretion of mucus. Has high concentration of antibodies. Consists of H2O, electrolytes, and mucin (protein)

Question 26

Where are Serous membranes?

Answer 26

Line closed body cavities & the organs within.

Question 27

What do serous membranes do?

Answer 27

Produce TRANSUDATE witch moistens surfaces to reduce friction.

Question 28

TRANSUDATE is?

Answer 28

Thin and watery; contains electrolytes but no mucin.

Question 29

Cutaneous membranes are?

Answer 29

Integument. | Produce keratin that makes skin waterproof and prevents drying.

Question 30

What are synovial membranes?

Answer 30

Produce synovial fluid which reduces friction and abrasion at the ends of bones!

Question 31

Skeletal muscle:

Answer 31

``` Large cells, therefore multinucleated. Is Voluntary (under conscious control) ```

Question 32

Smooth Muscle:

Answer 32

single-nucleated, involuntary (unconscious control)

Question 33

Cardiac muscle:

Answer 33

Single-nucleated, involuntary

Question 34

Nervous tissue:

Answer 34

Somatic nervous system (voluntary) -movement of body. | Autonomic nervous system (Involuntary)-digestion.