Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Science for Medicine > Tissues > Flashcards

Tissues Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What is the function of epithelium?

A

Covers surfaces, fills gaps between cells, forms cell-cell and cell-ECM junctions, separates compartments, absorption and movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the properties of epithelium?

A

Adaptive and regenerative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where can epithelium occur?

A

Covering the body: cell-cell junctions

Lining internal structures: cell-ECM junctions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What type of junctions are cell-cell junctions?

A

Desmosomes, tight junctions, occluding junctions an gap junctions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are desmosomes?

A

They are adhering junctions that provide firm anchorage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the function of tight and occluding junctions?

A

Seal IC spaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the function of gap junctions?

A

Allow cell-cell communication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are examples of cell-ECM junctions?

A

Hemidesmosomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What allows movement in epithelium?

A

Cilia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What allows absorption in epithelium?

A

Microvilli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How is epithelium arranged in the liver?

A

Arranged rows of hepatocytes between BVs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are hepatocytes?

A

Epithelial cells (parenchyma)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the functions of epithelium in liver?

A

Secretion and epithelial cell support via lining BVs and bile ducts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How is epithelium arranged in the kidneys?

A

Epithelial cells arranged into nephrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the functions of epithelial cells found in the kidneys?

A

Blood filtration, partial absorption of filtrate and epithelial cell support via lining BVs and renal pelvis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does epithelium lining the renal pelvis receive?

A

Toxic urine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the abnormal functions of epithelium?

A

Over/under proliferation and secretion and loss of ciliary beat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the causes of alternating proliferation?

A

Rapid cell reproduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are the 2 types of surface epithelia?

A

Simple and stratified

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are the 3 types of epithelia found in simple and stratified epithelium?

A

Squamous, cuboidal and columnar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the difference between squamous epithelial in simple and stratified epithelium?

A

Simple- thin and allows for easy diffusion e.g. alveoli and capillaries
Stratified- thick and regenerative e.g. epidermis

22
Q

What is the difference between cuboidal epithelial in simple and stratified epithelium?

A

Simple- performs secretion and absorption e.g. lining of nephrons
Stratified- protection e.g. ducts of sweat glands

23
Q

What is the difference between columnar epithelial in simple and stratified epithelium?

A

Simple- moves mucous when ciliated e.g. lining digestive tract
Stratified- protection and secretion e.g. pharynx

24
Q

What does ciliated mean?

A

Contains cilia

25
Q

What is a gland?

A

Collection of multi or single cellular secretory epithelial cells

26
Q

What does glandular epithelium consist of?

A

Exocrine and endocrine glands

27
Q

What are endocrine glands?

A

Steroid glands that secrete into blood

28
Q

What is an example of an endocrine gland?

A

Adrenal cortex

29
Q

What are exocrine glands?

A

Glands that secretes to the surface

30
Q

What is an example of an exocrine gland?

A

Sweat glands, mucous glands and serous glands

31
Q

What are mucous glands?

A

Secretions rich in proteoglycans e.g. in the trachea

32
Q

What is mucous?

A

Secretion and water

33
Q

What are serous glands?

A

Secretions rich in protein e.g. exocrine pancreas

34
Q

What are the ECM components of connective tissue?

A

Rope-like fibres, ground substance and tissue fluid

35
Q

What is a ground substance?

A

Proteoglycans and glycoproteins (jelly-like)

36
Q

What are the fibre components of connective tissue?

A

Collagen and elastin

37
Q

What is collagen?

A

It is an inelastic but flexible fibre that makes up 30% body weight. It has a high tensile strength and comes in many types

38
Q

What is elastin?

A

Elastic fibres made of protein which contains micro fibrils which can stretch then return to its original length. It is arranged in sheets rather than fibres and is found in the aorta

39
Q

What colour is elastin?

A

Yellow

40
Q

What are the 2 types of cells found in loose connective tissue?

A

Permanent (fixed) cells and transient cells

41
Q

What are permeant cells?

A

Fibroblasts, macrophages, adipocytes, mast cells and undifferentiated cells

42
Q

What are transient cells?

A

WBCs

43
Q

What are the 2 types of dense connective tissue?

A

Regular and irregular

44
Q

Where can you find dense regular connective tissue?

A

Tendons

45
Q

Where can you find dense irregular connective tissue?

A

Skin

46
Q

What are the types of connective tissue found in fat?

A

Mesenteric fat and bone marrow

47
Q

What is the abnormal functions of blood/bone marrow?

A

Leukaemia

48
Q

What are the abnormal functions of loose/dense connective tissue?

A

Loss of fibres or abnormal fibres

49
Q

What are the abnormal functions of cartilage?

A

Tear

50
Q

What are the abnormal functions of bone?

A

Osteoporosis

Science for Medicine (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions