Tissues Flashcards Preview

Medicine > Tissues > Flashcards

Flashcards in Tissues Deck (54):
1

Hyaluronidase

WBCs and sperm use to make matrix liquidy, breaks down hyaluronic acid

2

glycosaminoglycans (GAG)

trap water in ground substance making connective tissue jelly like

3

fibronectin

main adhesion protein of connective tissue

4

collagen fiber

strong and flexible CT fiber, found in bone, cartilage, tendons and ligaments

5

collagen

protein that makes up collagen fiber

6

elastic fibers

smaller than collagen fibers, form networks, abundant in skin, blood vessel walls, lung tissue

7

elastin

protein that makes up elastic fibers

8

fibrillin

surrounds elastic fiber bundles (Marfan syndrom)

9

reticular fibers

thinnest CT fiber, bundles of collagen surrounded by glycoprotein, provides support for soft organs like spleen, and lymph nodes

10

hyaluronic acid

GAG that is slippery, lubricates joints and maintains shape of eyeball

11

chondroitin sulfate

support for skin, cartilage, blood vessels, bone

12

keratan sulfate

support for bones, skin, cornea of the eye

13

dermatan sulfate

support for skin, bones, tendons, heart valves

14

proteoglycans

main foundation of all GAGs except for hyaluronic acid

15

unicelluclar (goblet) gland

airway, gut

16

simple tubular gland

large intestine

17

simple acinar gland

gland of penile urethra

18

simple branched tubular gland

gastric glands

19

simple branched acinar gland

sebaceous gland

20

compound tubular gland

Cowper's gland

21

compound acinar gland

mammary gland

22

compound tubuloacinar gland

pancreas, digestive enzymes

23

ectoderm is the precursor for which type of tissue

nervous tissue

24

mesoderm is the precursor for which type of tissue

CT and muscle

25

endoderm is the precursor for which type of tissue

epithelial lining

26

which protein is present in gap junctions?

connexins

27

which proteins make up tight junctions

transmembrane proteins
prevents molecules from passing between cells

28

what are the components of adherens junctions

cadherins (glycoproteins)
actin (microfilament)
forms a plaque that resists separation of cells

29

what are the components of desmosomes

cadherins
intermediate filaments (keratin)
prevents cell separation under stress forces

30

what are the components of hemidesmosomes

integrins (transmembrane glycoproteins)
laminin (in basement layer)
intermediate filaments (keratin)

31

locations of tight junctions

BBB
stomach lining
urinary bladder

32

locations of adherens junctions

epithelial cells

33

locations of desmosomes

outer layer of epidermis
cardiac muscle cells

34

locations of hemidesmosomes

basement layer of epithelium

35

locations of gap junctions

nerve cells
cardiac and smooth muscle
embryonic cells
lens and cornea of eye (avascular)

36

the basal surface of epithelial tissue contains which two layers

basil lamina (secreted by epithelial cells)
reticular lamina (secreted by underlying CT)

37

what is microvascular disease?

in poorly controlled diabetes, the basement layer of blood vessels becomes thickened
it causes
-retinopathy
-glomerular issues
-neuropathy

38

What is a normal WBC?

5000-10000/uL

39

Neutrophils

most abundant WBC 60-79% of blood

40

Lymphocyte

20-25% of WB

41

Monocytes

3-8% of WB

42

Eosinophils

2-4% of WB

43

Basophils

.5-1% of WB

44

tonofilamen

precursor to the intermediate filament that transforms into keratin as epithelial cells move apical

45

keratohyalin

the protein that converts the tonofilaments into keratin in the stratum granulosum

46

epidermal growth factor

speeds up the process of cells becoming keratinized during wound healing

47

what kind of CT is in the papillary region between the epidermis and dermis?

areolar CT

48

what is carotene used for?

precursor of vitamin A, which is used to make visual pigment

49

what does thick skin lack?

hair follicles
sebaceous glands
arrector pili muscle

50

what does thick skin have more of?

sensory nerve endings and sweat glands

51

What are the layers of the hair?

1. matrix
2. medulla
3. cortex
4. cuticle
5. internal/external sheath (epithelial)
6. dermal root sheath

52

lamellar granules

lipid bodies located in the stratum granulosum that give it its waterproofing ability

53

fibrosis

process of forming scar tissue
-have more collagen and less blood vessels

54

hypertrophic scar

stays w/in margins of the wound, but is elevated above the wound

Decks in Medicine Class (146):