Terminology tissues

Question 1

What do epithelial tissues form?

Answer 1

covering on all internal & external surfaces of body,

lines body cavities & hollow organs

major tissue in Glands

Question 2

What defines the structure or function of connective tissues

Answer 2

Extracellular matrix and fluid.

Question 3

What are the functions of connective tissues?

Answer 3

• Bind structures together, forms framework & support for organs & body
• store fat, transport substances, protect against disease,
• help repair tissue damage.

Question 4

Describe the shape/structure of cells of muscle tissue

Answer 4

Long, thin cells

Question 5

What are the cytoplasms of muscle tissue cells packed with?

Answer 5

Contractile apparatus.

Question 6

Name types of muscle tissue

Answer 6

Cardiac, skeletal and smooth muscle

Question 7

What is the function of nervous tissue

Answer 7

Communication; receives, generates, and transmits electrical signals; integrates information

Question 8

What are the nervous tissues made up of

Answer 8

Neurons and support cells

Question 9

How does epithelial tissue maintain coverage of surfaces?

Answer 9

No contact inhibition; cell to cell junctions; cell to extracellular matrix junctions.

Question 10

What is the function of desmosomes

Answer 10

Firm anchorage between cells… structure specialized for cell-to-cell adhesion. A type of junctional complex,

Question 11

What is the function of tight junctions?

Answer 11

Seals intracellular spaces.

Question 12

What is the function of gap junctions

Answer 12

Cell to cell communication

Question 13

Name the components of the cell to cell junctions

Answer 13

Desmosomes, tight junctions, gap junctions

Question 14

What is the basement membrane composed of?

Answer 14

base lamina and reticular lamina

Question 15

What is the role of thick epithelium?

Answer 15

Wear and tear

Question 16

What is the role of thin epithelium

Answer 16

Diffusion

Question 17

What does epithelium contain for movement to occur?

Answer 17

Cilia

Question 18

What are cilia

Answer 18

finger-like projections from the apical surface.

Question 19

What does epithelium contain to allow absorption?

Answer 19

Microvili

Question 20

Name the classifications of epithelia

Answer 20

Squamous; cuboidal; stratified or simple; transitional; pseudostratified columnar

Question 21

What do exocrine glands secrete into?

Answer 21

Tubes

Question 22

What do endocrine glands secrete into?

Answer 22

Blood

Question 23

Name the types of exocrine glands

Answer 23

Mucous glands; Serous glands

Question 24

What do mucous glands secrete

Answer 24

Secretions rich in proteoglycans
Secretion and water gives mucus

Question 25

What do serous glands secrete?

Answer 25

Watery, enzymes protein-rich secretion.

Question 26

Name the abnormal functions of epithelial cells

Answer 26

over-proliferation; under proliferation; loss of cilia; over secretion; under secretion.

Question 27

Describe the structure of connective tissue

Answer 27

Fibres - rope-like
Ground substance - Jelly like
Tissue fluid - liquid

Question 28

What are the fibres found in connective tissue

Answer 28

Elastin; collagen

Question 29

How many types of collagen are there? give examples

Answer 29

19 + types; type 1 in tendons.

Question 30

Describe the structure of collagen

Answer 30

Inelastic but flexible - great tensile strength

Question 31

Name the components of elastic fibers

Answer 31

Protein elastin, microfibrils, and an amorphous component

Question 32

Name the types of connective tissue

Answer 32

loose, dense, cartilage, bone, adipose, blood

Question 33

Examples of loose connective tissue

Answer 33

Fibroblasts, macrophages, adipocytes mast cells