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Medicine Term One > Tissues > Flashcards

Flashcards in Tissues Deck (62):
1

Functions of Squamous cells

absorption and diffusion

2

Example of squamous cell

air sacs

3

Function of cuboidal and columnar cells

absorbs nutrients and produces secretion

4

Stratified

One layer of cells

5

Whats attached to the basement membrane

Basal laminar

6

Whats attaches to glands and contracts

Myoepithelial cells

7

Stomach lining mad up of

simple columnar cells

8

One layer with different shapes and sizes (looks multilayered)

pseudo-stratified

9

Mucus gland rich in

Proteoglycans

10

Proteoglycans absorb water and from

Mucus

11

Is epithelium vascular?

No is avascular (no blood supply)

12

Is muscle cells vasculated?

Yes

13

What do intercalated discs do in Cardiac muscle

pass electrical signal

14

Where is muscle tissue located

Skeletal, smooth, and cardiac

15

What is present in muscle fibres

Myosin and actin

16

What aids muscle tissue high demand

Swamped with mitochondria

17

Where is nervous tissue found

Grey matter in the CNS

18

What is cilla composed of (and arrangement)

tubulin (9 + 2 arrangment)

19

Example of what microvilli absorbs

Products of digestion

20

Example of role of cillia

Move fluid lining in the lung

21

Function of Glands

Secreting and absorbing epithelial cells

22

Multicellular gland

Liver

23

What does serous gland secrete (example)

watery secretion rich in propers e.g. digestive enzymes

24

Different epithelial cell arrangement called

transitional

25

pseudo-stratified columnar epithelium located

Trachea

26

Why are gap junctions important in the heart

allow cells to contract together

27

Functions of tight junctions

Seals intracellular spaces and waterproof

28

Whats allows adhering and maintain integrity of epithelia cells

Desmosomes Junctions

29

Whats stronger desmosome junctions or tight junctions

desmosomes

30

What does every cell make contact with

basal laminar

31

what do hemidesmosomes do

attach cell to ECM

32

Small bundled up gland closer to the surface

Acinar

33

Long gland further away from the surface

Tubular

34

Mucus gland more likely to be acinar or tubular

acinar

35

myoepithelial cells more likely to be found on cells secreting

mucus (thick secretions)

36

Whats stored in vesicles of endocrine glands

Proteins

37

Example of endocrine gland and its secretion

Pancreatic islets and insulin

38

Endocrines secrete into blood vessels by what process

exocytosis

39

Why are epithelia tissues arranged in rows between blood vessels in the Liver

Maximise blood flow

40

Epithelium line what is digestive system

Bial ducts and Blood vessels

41

Epithelium cells line what in Kidney

Blood vessels and renal pelvis

42

Under proliferation and over proliferation of pituitary gland cause what abnormal functions

dwarfism and gigantism

43

Over secretion of mucus gland in uterine tube can cause

in-fertilisation as eggs can't move

44

What is connective tissue made up of (2 main components)

ECM and proteins

45

Examples of connective tissue

Blood, Bone, adipose, cartilage, proper

46

ECM composed of

Ground substance and fibre matrix

47

Connective tissue proper is either

loose or dense

48

Areolar connective tissue function

spongy layer holds intracelular fluid, and protection as where macrophages, mast cells and white blood cells

49

Loose connective tissue 3 types

Areolar, reticular and adipose

50

Function of adipose and example

required to protect your organs and help maintain your body temperature e.g. fat

51

Function of reticular and example

Forms the soft internal skeleton of something e.g. spleen and lymphoid organs

52

Where is areolar connective tissue widely disrupted

under epithelia of the body

53

Three Dense connective tissues

Regular, Irregular and elastic

54

Dense connective tissue has what more of what compared to loose, and connective tissue has more

collagen fibres, ground substance

55

Protein fibres of ECM

collagen, reticular and elastic

56

Difference between dense regular (e.g.) and irregular (e.g.)

Dense regular only pulls in one direction e.g. tendon where irregular allows movement in different directions e.g. shoulder

57

Dense Regular collagen fibres compared with Dense Irregular

Regular colagen fibres arranged parallel,

58

Where do cells in Connective tissue mostly secrete

Into ECM

59

Cells in connective tissue

Macrophages, WBC, fibroblasts, mast cells, adipose cells, osteoblasts,

60

Best example of loose connective tissue

blood

61

Loose compare to dense have

less fibres and more ground substance

62

All connective tissue develop from

Mesenchyme (undeveloped loose connective tissue)

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