Chapter 8

Question 1

What is a tissue?

Answer 1

Group of cells held together by an extra cellular matrix, which are similar in structure and function

Question 2

What are the 4 main types of tissue

Answer 2

Epithelial
Connective
Muscle
Nervous

Question 3

What are the 3 primary germ layers seen 2 weeks after conception

Answer 3

Endoderm
Mesoderm
Ectoderm

Question 4

What is histogenesis

Answer 4

The differentiating of germ layers giving rise to various organs and tissues

Question 5

What is the breakdown meaning of extra- Cellular Matrix-

Answer 5

Outside= extra

Matrix = a surrounding medium or structure

Question 6

3 components of extra cellular matrix

Answer 6

Collagen, elastin, glycoproteins and proteoglycans

Question 7

5 characteristics of collagen

Answer 7

• twister bundle of fibers
• very strong
• can be stretched
• most abundant ECM
• weakens as we age

Question 8

2 features of Elastin

Answer 8

Rubbery and stretchy

Question 9

2 features of glycoproteins and proteoglycans

Answer 9

A combination of proteins and carbs

Question 10

Ability for tissue to repair depends on _______

Answer 10

Vascularity

Question 11

______ and _______ tissue have the greatest capability to repair

Answer 11

Epithelial and connective

Question 12

______ and _____ tissue have limited ability to repair

Answer 12

Muscle an nerve tissue

Question 13

Cartilage is slow to repair as it is _______

Answer 13

A vascular

Question 14

During repair, damaged tissue is removed by

Answer 14

Phagocytes

Question 15

Scars form if gap to be filled is

Answer 15

Wide

Question 16

Keloid scars are

Answer 16

Thick scars that develop in lower layers of the skin

Question 17

A membrane is….

Answer 17

A thin sheet like structure

Question 18

What are the 3 functions of body membranes

Answer 18

Cover and protect internal and external organs

Anchors organs and bones

Secrete lubricating fluids to reduce friction

Question 19

Two major types of body membranes are

Answer 19

Epithelial and connective

Question 20

Epithelial has _______ distinct layers which are

Answer 20

Epithelial tissue and underlying layer of connective tissue

Question 21

3 types of epithelial membranes

Answer 21

Cutaneous, serous and mucous

Question 22

Connective tissue membranes are composed of _____ and no ____

Answer 22

Various types of connective tissue and no epithelial cells

Question 23

__________ is the most widespread and diverse tissue in the body

Answer 23

Connective tissue membrane

Question 24

Cutaneous membrane or skin is the primary organ of the

Answer 24

Integumentary system

Question 25

Cutaneous membrane is largest _____ and accounts for _______ of body weight

Answer 25

Largest organ 16%

Question 26

Cutaneous membrane is made up of

Answer 26

Superficial layer of epithelial cells and underlying layer of supportive connective tissue

Question 27

What is the purpose of serous Lubricating fluid

Answer 27

Decrease friction between organs and their surrounding

Question 28

Describe pleurisy

Answer 28

Serous membrane disease which is inflammation of the serous membrane that line the chest cavity and covers the lungs

Question 29

Describe peritonitis

Answer 29

Serous membrane disease that results in inflammation of the serous membranes that line the walls of the abdominal cavity and cover the abdominal organs

Question 30

Epithelial cells produce mucous which acts to...

Answer 30

Keep membrane soft, moist and protect underlying cells Also can act as a trap

Question 31

What is the mucocutaneous junction and examples

Answer 31

Transition area where skin and mucous membranes meet Ex eyelids, nostril and anus

Question 32

Example of connective tissue membrane

Answer 32

Synovial membranes