Ch 4-5

Question 1

*Organized groupings of (usually, but not always) connected cells and secreted materials that perform specific, limited functions with a larger system (such as within an organ or larger grouping.)

Answer 1

Tissues

Question 2

Where do cells in tissue stem from?

Answer 2

Mesenchyme stem cells

Question 3

What do cells in tissue have in common?

Answer 3

Common origin (embryonic tissue within the organism’s body

Question 4

4 major types of tissue

Answer 4

Epithelial, Connective, Muscle, Nervous

Question 5

Tissue that covers exposed surfaces, lines internal passageways, forms glands

Answer 5

Epithelial

Question 6

Tissue that lines roof of mouth, digestive, respiratory, and urinary tract.

Answer 6

Epithelial

Question 7

Type of tissue that is the “packer material in our cavitities”

Answer 7

Connective

Question 8

Tissue that fills internal spaces, supports other tissues, transports materials, stores energy

Answer 8

Connective

Question 9

Tissue that is specialized for contraction, skeletal muscle, heart muscle, and walls of hollow organs

Answer 9

Muscle tissue

Question 10

Types of muscle tissue

Answer 10

skeletal, smooth (in organs), cardiac

Question 11

The tissue that carries electrical signals from on part of the body to another.

Answer 11

Neural tissue

Question 12

Epithelial tissue is subdivided into:

Answer 12

Epithelia, glands and glandular epithelia

Question 13

*A layer of cells covering an internal or external surface

Answer 13

Epithelium

Question 14

*An epithelial cell that has differentiated/specialized into a cell that produces secretions

Answer 14

A gland

Question 15

*A layer of epithelial cells in which most or all of the cells have been specialized into gland cells

Answer 15

Glandular epithelia

Question 16

5 important characteristics of epithelia

Answer 16

1. Cellularity
2. Polarity
3. Attachment
4. Avascularity (doesn’t have a vessel)
5. Regeneration

Question 17

Polarity have two faces which are? And where are they located?

Answer 17

Apical surface (closer to the exterior) and the basolateral surface (closer to the base of the tissue)

Question 18

The basal membrane is made up of:

Answer 18

a thin two -part layer made up of a fibrous matrix of protein

Question 19

The basal lamina is secreted by the _____ cells

Answer 19

epithelial

Question 20

The reticular fibers is secreted by the _____ cells

Answer 20

connective tissue

Question 21

What do attachment proteins attach epithelial cells to?

Answer 21

The basement membrane

Question 22

Avascularity- where do blood vessels run?

Answer 22

Below epithelia and through the underlying connective tissue

Question 23

When epithelial cells divide more often than most tissues to replace lost cells, this is?

Answer 23

Regeneration

Question 24

4 functions of epithelial tissues

Answer 24

1. Physical protection
2. Control Permeability
3. Sensation
4. Produce secretions

Question 25

Function of cilia

Answer 25

to move secreted material over their surface

Question 26

Function of microvilli

Answer 26

Increase surface area of the tissue to absorb or secrete more materials

Question 27

“Button” proteins that seal tightly together

Answer 27

Tight junctions

Question 28

“Zipper” densely packed interlocking proteins

Answer 28

Desmosomes (macula adherons)

Question 29

A ring of proteins creating a pore connecting their cytoplasm adhering cells to one another but allowing them to share cytoplasmic contents

Answer 29

Gap junction

Question 30

Cells that make up junctions are known as CAMS

Answer 30

Cell-adhesion molecules (CAMs)

Question 31

Other names for CAMs:

Answer 31

Cadherins
Integrins
Connexins