Chapter 4: Tissue Level of Organization

Question 1

Tissues arise from what 3 primary germ cells?

Answer 1

1. Ectoderm
2. Mesoderm
3. Endoderm

Question 2

What germ layer becomes the outter skin?

Answer 2

Ectoderm

Question 3

The end orders gives rise to the inner skin? True or False?

Answer 3

True.

Question 4

The mesoderm gives rise to _______.

Answer 4

Gelatinous material called me scheme that forms the connective tissue in the muscles

Question 5

What are the 4 basic tissue types?

Answer 5

1. Epithelial
2. connective
3. muslce
4. Nervous tissue

Question 6

What do tight junctions do?

Answer 6

Prevent substances from moving between cells (can be leaky)

Question 7

What are desmosomes?

Answer 7

Thickening proteins that zip cels together and form the plaque across cytoplasm

Question 8

What are the 2 types of epithelial tissues?

Answer 8

1. Cover surfaces and line cavities

2. form glads

Question 9

What are the 2 types of glands?

Answer 9

1. Endocrine

2. Exocrine

Question 10

Explain the 3 modes o secretions of exocrine glands.

Answer 10

1. Merocrine: secrete porducts by exocytosis
2. Holocrine: entire cell fills with secretion and is shed
3. Aprocrine: part of cell pinches off as secretion

Question 11

What is the most abundant and varied tissue type?

Answer 11

Connective Tissue

Question 12

wHwt are the 3 common components of connective tissue?

Answer 12

1) Cells
2) Ground substance
3) fibres

Question 13

What makes up the ground substance?

Answer 13

Ground substance and protein fibres matrix

Question 14

What are the 3 types of fibres?

Answer 14

Collagen, elastic, reitucular

Question 15

What are the 3 Loose Connective Tissues?

Answer 15

Areolar, adipose, reticular

Question 16

What are the dense connective tissues?

Answer 16

Dense regular CT & Dense regular irregular CT

Question 17

The three main types of cartilage are…..

Answer 17

Hyaline, elastic, fibrocartilage

Question 18

Why is cartilage thin?

Answer 18

Because it is avasulcar, it has to be thing because it relays on diffusion to receive its blood supply

Question 19

Is bone a connective tissue?

Answer 19

Yes!

Question 20

Explain mucous membranes.

Answer 20

Line the openings to the exterior of the body (respiratory/digestive system organs)

Question 21

Serous membranes form the ______.

Answer 21

Close cavities and cover organs.

Question 22

Dictate between visceral and parietal serous membranes.

Answer 22

Parietlal: live body cavities
Visceral: cover organs

Question 23

The ______ membrane is the skin.

Answer 23

Cutaneous

Question 24

What is the function of skeletal muscle

?

Answer 24

Move bones of the skeleton

Question 25

Which type of muscle propels contents of hollow organs?

Answer 25

Smooth muscle

Question 26

Which type of muscle fibre is branded?

Answer 26

Cardiac

Question 27

Which type of muscle fibre contains multiple nuclei ?

Answer 27

Skeletal

Question 28

What are the 2 major cell steps of nervous tissue?

Answer 28

Neurons and neuroglia