tissue structure

Question 1

types of nervous tissue

Answer 1

• brain
• spinal cord
• nerves

Question 2

types of muscle tissue

Answer 2

• cardiac
• smooth
  -skeletal

Question 3

types of connective tissue

Answer 3

• fat / other soft padding tissue
• bone
• tendon

Question 4

types of epithelial tissue

Answer 4

• lining of GI tract organs / other hollow organs
• skin surface (epidermis)

Question 5

basic structure and function of epithelial tissue

Answer 5

• lines body surfaces, inside of hollow organs, forms glands
• cells have distinct basal and apical surfaces (directionality)
• tissue mostly avascular
• most epithelial tissues have ability to rapidly replace damaged tissue

Question 6

how is the structure of epithelial cells related to its function

Answer 6

• more layers = protection
• fewer layers = easier diffusion/secretion/absorption
• thin cells = easy diffusion
• thick cells = volume for synthesis of secretions or absorption of nutrients
• cilia = movement of substances along surface, greater surface area

Question 7

types of epithelial tissue vary based on: (2)

Answer 7

1) cell shape
2) number of layers

Question 8

basic structure and function of connective tissue

Answer 8

• forms the framework of organs
• connects organs to each other
• composed of a small number of cells and a large amount of extracellular material called the matrix
• the matrix of each specific type of connective tissue will vary

Question 9

common components of the matrix

Answer 9

• fibres (reticular, elastic, collagen)
• cells (adipocytes, mesenchymal, fibroblast, macrophage)
• ground substance (can be liquid, gel-like, and calcified)

Question 10

what is the function of fibres

Answer 10

to increase strength and elasticity

Question 11

function of fibroblast cells

Answer 11

secrete fibres

Question 12

function of mesenchymal cells

Answer 12

connective tissue stem cells, found in loose connective tissue in adults

Question 13

function of neutrophil, lymphocytes, mast cells

Answer 13

to prevent infection

Question 14

function of macrophages

Answer 14

to remove pathogens

Question 15

function of adipocytes

Answer 15

store fat

Question 16

classification of connective tissue

Answer 16

1) embryonic connective tissue
2) mature connective tissue
a) mature connective tissue proper
- loose
- dense
b) supportive connective tissue
- bone
- cartilage
c) fluid
*based on ground substance and dominant cell type

Question 17

embryonic connective tissue

Answer 17

• present in the embryo and fetus
• usually contains soft and delicate fibres
• gives rise to all other types of connective tissue

Question 18

mature connective tissue proper - loose

Answer 18

• types: areolar, adipose, reticular (not covered in this course)
• loosely intertwined fibres throughout tissues
• many cells present including some mesenchymal cells

Question 19

areolar tissue

Question 20

adipose tissue

Question 21

mature connective tissue proper - dense

Answer 21

• types: dense regular connective tissue, dense irregular connective tissue, elastic connective tissue
• contains thicker and more dense fibres than loose connective tissue
• fewer cells than loose connective tissue
• example: tendons, ligaments

Question 22

mature connec