Chapter Five

Question 1

Tissue

Answer 1

Groups of similar cells that perform a common function

Question 2

How many types of tissues are there?

Answer 2

Four types

Question 3

Ectoderm

Answer 3

Outer Layer
Example: Epidermis or Nervous Tissue

Question 4

Mesoderm

Answer 4

Middle Layer
Example: Lung Tissue, Thyroid Tissue, Pancreatic Tissue

Question 5

Endoderm

Answer 5

Inner Layer
Example:
Cardiac Muscle, Skeletal Muscle, Bone, Blood, Smooth Muscle (gut)

Question 6

Differentiation

Answer 6

When each layer gives rise to a different type of tissue

Question 7

Stem Cells

Answer 7

Special cells that can differentiate into many different types of cells like liver, skin, blood cells

Question 8

Epithelial Tissue

Answer 8

Continuous sheet of tightly packed cells
Covers the body’s surface

Question 9

Surface Tissue

Answer 9

Top surface is usually exposed to the environment

Question 10

Basement Membrane

Answer 10

Bottom surface that adheres to underlying connective tissue

Question 11

What are the three cell shapes of epithelial tissue?

Answer 11

Squamous
Cuboidal
Columnar

Question 12

Squamous

Answer 12

These cells are flat and plate like. The word means scaly.

Question 13

Cuboidal

Answer 13

These cells are cube shaped and contain more cytoplasm than squamous cells

Question 14

Columnar

Answer 14

Higher than they are wide, columnar cells are tall and cylindrical

Question 15

Simple Epithelia

Answer 15

Every cell touches the basement membrane

Question 16

Stratified Epithelia

Answer 16

Some cells stack on top of other cells and the upper layers of cells don’t touch the basement membrane

Question 17

Glandular Epithelium

Answer 17

A

Question 18

Gland

Answer 18

A collection of epithelial cells that specializes in secretion of a particular substance

Question 19

Exocrine Gland

Answer 19

secrete their products into ducts

Question 20

endocrine gland

Answer 20

often called ductless gland. These glands secrete their products (hormones) directly into the blood

Question 21

Goblet Cells

Answer 21

Modified cells containing secretory vesicles that produce large quantities of mucus

Question 22

Connective Tissue

Answer 22

The most widespread and most varied of all the tissues; serves to connect the body together and to support, bind, or protect organs

Question 23

Extracellular Matrix

Question 24

Collagenous Fibers

Question 25

Reticular Fibers

Question 26

Elastic Fibers