Tissues: Homework

Question 1

Characteristics of Epithelial tissue

Answer 1

• forms outer skin layer
• forms some glands
• not attached to one side
• cells tightly packed
• one side attached to basement membrane

Question 2

simple columnar

Answer 2

one layer of tall, thin cells

• lines most of digestive tract
• often has cilia and goblet cells
• functions in absorption and secretion

Question 3

stratified squamous

Answer 3

multiple layers of flat cells

• may be keratinized or unkeratinized
• forms epidermis of skin

Question 4

transitional

Answer 4

the number of layers varies

- lines urinary bladder

Question 5

simple squamous

Answer 5

one layer of flat cells

• functions in diffusion and filtration
• lines blood vessels and alveoli of lungs

Question 6

simple cuboidal

Answer 6

one layer of cells that are equally tall and wide

• forms kidney tubules and parts of some glands
• functions in absorption and secreation

Question 7

stratified columnar

Answer 7

multiple layers of tall, thin cells

Question 8

pseudostratified (columnar)

Answer 8

appears to have multiple layers but does not

• lines trachea and upper respiratory tract
• often has cilia and goblet cells
• traps inhaled dust and moves it out of airway

Question 9

stratified cuboidal

Answer 9

multiple layers of cells that are equally tall and wide

Question 10

goblet cells are

Answer 10

unicellular glands

Question 11

the secretion from goblet cells dissolves to form

Answer 11

mucus

Question 12

glands that release their product into the blood are

Answer 12

endocrine glands

Question 13

glands that release their product into the ducts are

Answer 13

exocrine glands

Question 14

Sweat and oil glands are both examples of

Answer 14

exocrine glands

Question 15

Glands that secrete hormones are

Answer 15

endocrine glands

Question 16

Epithelium tissue

Answer 16

• avascular
• rapid growth
• little matrix
• secretion
• covers organs
• filtration and diffusion

Question 17

connective tissue

Answer 17

• vascular
• moderate growth
• lots of matrix
• forms blood cells
• forms skeleton
• binds things together

Question 18

areolar

Answer 18

• forms packing material between organs

- has both collagen and elastic fibers scattered in gel-like matrix with macrophages and mast cells

Question 19

adipose

Answer 19

• commonly called “fat tissue”

- insulates and cushions body

Question 20

reticular

Answer 20

• network of short fibers with cells scattered throughout

- froms the framework of the spleen and liver

Question 21

dense regular

Answer 21

• gives strength to tendons and ligaments

- collagen fibers all run parallel to each other

Question 22

dense irregular

Answer 22

• forms dermis of skin and joint capsules

- has collagen fibers that run many directions

Question 23

elastic

Answer 23

-found in the walls of arteries

Question 24

cartilage is different from most connective tissue because it

Answer 24

is avascular

Question 25

lacunae are

Answer 25

spaces occupied by cells

Question 26

the cells that make cartilage are called

Answer 26

chondrocytes

Question 27

which type of cartilage is very flexible?

Answer 27

elastic cartilage

Question 28

Which type of cartilage is most common?

Answer 28

hyaline cartilage

Question 29

Which type of cartilage is very strong?

Answer 29

fibrocartilage

Question 30

Bone tissue is different from other connective tissue because it

Answer 30

has a hard matrix

Question 31

The cells that make bone tissue are called

Answer 31

osteoblasts

Question 32

blood is different from other connective tissue because it has

Answer 32

a liquid matrix

Question 33

Swelling

Answer 33

increased capillary permeability

Question 34

Pain

Answer 34

increased fluid pressure on nerve endings and release of inflammatory chemicals

Question 35

heat and redness

Answer 35

dilation of capillaries at site of injury

Question 36

What happens second?

Answer 36

growth of granulation tissue

Question 37

Replacement of normal tissue with scar tissue is called

Answer 37

regeneration

Question 38

Which tissue regenerates most rapidly?

Answer 38

epithelium

Question 39

Which is usually replaced by scar tissue if damaged?

Answer 39

cardiac muscle