Epithelial Tissie

Question 1

Free surface

Answer 1

The top of the epithelial cell that is open to it’s surroundings.

Question 2

Basal surface

Answer 2

The underside of the epithelial cells.

Question 3

Basement membrane

Answer 3

The glue-like substance the epithelial cells secrete that attach the basal surface to the tissue below.

Question 4

Is the basement membrane vascular or avascular?

Answer 4

It is avascular. There are no blood vessels, so the tissue below must diffuse oxygen and nutrients across the basement membrane and into the cells.

Question 5

Do epithelial cells die fast or slow

Answer 5

Fast. At a rapid rate.

Question 6

What is epithelial tissue with only one layer?

Answer 6

Simple epithelium

Question 7

What is epithelial tissue with multiple layers called?

Answer 7

Stratified epithelium.

Question 8

What are flat epithelial cells described as?

Answer 8

Squamous epithelium

Question 9

What are cube shaped epithelial tissues called?

Answer 9

Cuboidal epithelium

Question 10

What are column shaped epithelial tissues called?

Answer 10

Columnar epithelium.

Question 11

What does simple squamous epithelium do and where is it found.

Answer 11

It completes no complex tasks, but it offers a minimal barrier and it’s function is to allow for diffusion of oxygen and nutrients.

• lines blood vessels
• found in tiny air sacs in our lungs

Question 12

What does simple cuboidal epithelium do and where is it found?

Answer 12

Simple cuboidal epithelium can allow for diffusion but also absorption and secretion. It is found in the kidneys and salivary glands.

Question 13

What is simple columnar epithelium and where is it found?

Answer 13

The tissue can perform more complex secretion and absorption tasks. This tissue has goblet cells that produce mucus. Found in the lining of your stomach and intestines.

Question 14

Describe stratified squamous epithelium

Answer 14

Tissue that has a layers of cells. the closest to the free surface are squamous while deeper cells are cuboidal ( basal cells). This tissue is the upper layers of your skin.

Question 15

What is a keratinized membrane

Answer 15

Dead cells on the free surface that contain a waterproofing protein called keratin.

Question 16

What is an example of stratified squamous epithelial tissue that does not form keratinized tissue and is alive at the top and where is it found.

Answer 16

Moist stratified squamous epithelium is alive because the surface cells are covered with mucus. Is found in the mouth.

Question 17

What is stratified transitional epithelium?

Answer 17

Epithelial tissue that is changeable. it is multi-layered and stretches. Is found in the urinary bladder.

Question 18

What is pseudostratified epithelium

Answer 18

Pseudostratified means falsely layered. Not all the cells are the same length some touch the basement layers while others don’t. It has goblet cells and often has cilia. Found in nasal passages, the air sinuses of the skull, and in the airways of the lungs. Helps keep lungs clean by trapping particles and moving them out

Question 19

What are exocrine glands

Answer 19

Friends that secrete substances outward through a duct

Question 20

What are endocrine glands

Answer 20

Ductless glands at secrete hormones into the bloodstream

Question 21

What are merocrine glands

Answer 21

Exocrine glands that secrete without losing cellular material

Question 22

What are apocrine glands

Answer 22

Exocrine things that have cytoplasm in their secretions

Question 23

What are holocrine glands

Answer 23

Exocrine glands that have secretions made up of the centigrated cells

Question 24

What do endocrine glands do in the pancreas?

Answer 24

They secrete insulin into the bloodstream to control glucose levels in the blood. They do so through capillaries since there are no ducts.

Question 25

What do exocrine glands do in the pancreas

Answer 25

They secrete enzymes via ducks into the small intestine for digestion.