Brainscape's Knowledge GenomeTM

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


See full index

FMP1 A&P > Lympatic System > Flashcards

Lympatic System Flashcards

1
Q

What is the lymphatic system?

A

A large network of lymphatic vessels that carry a clear fluid called lymph directly towards the heart

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

How is excess fluid drained from the tissues?

A

lympatic capillaries

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

Name the components of the lymphatic system

A
  • lymph and lymphatic vessels
  • lymph nodes
  • lymph organs
  • diffuse lymphoid tissues
  • red bone marrow
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Give examples of lymph organs

A

Spleen

Thymus

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

Give examples of lymphoid tissue

A

Tonsils

Adenoids

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

What are the 3 functions of the lymphatic system?

A

tissue drainage
immunity
absorption

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

Explain the function of ‘tissue drainage’

A

Drainage of interstitial fluid. The fluid that cells are bathed in, originating in the plasma

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

Explain the function of ‘immunity’

A

Production, maturation and activation of lymphocytes (type of white blood cell)

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

Explain the function of ‘absorption’

A

absorption of fats from small intestines

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

Describe ‘lymph’

A

clear, watery fluid, similar in composition to the plasma but without plasma proteins

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

Where are lymphocytes found and what do they do?

A

Both the blood and lymph contain lymphocytes. The white blood cells responsible for adaptive immunity

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

Where is lymph derived from?

A

Interstitial fluid and they are identical in composition

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

Explain how lymph is derived from interstitial fluid

A

within the tissues, there is an exchange of water (fluid) and solutes between the plasma and the interstitial fluid compartment.
An excess tissue fluid is drained by lymphatic capillaries.
Fluid within the lymphatic vessels is termed lymph

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

What is ‘lymph’?

A

fluid within the lymphatic vessels

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

When lymph is derived from interstitial fluid, should plasma proteins enter the interstitial fluid, what happens?

A

the plasma proteins will enter the lymphatic capillaries and be returned to the blood circulation

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

How are plasma proteins found in interstitial fluid returned to the blood?

A

FILTRATION of water into the tissue fluid from the blood.
Tissue fluid formed from drainage out of the blood, carried to the lymphatic capillaries and a proportion drained back through to blood flow through osmosis

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

Define ‘osmosis’

A

Osmosis is the movement of water or other solvent through a plasma membrane from a region of low concentration to high concentration

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

What happens to the lymphatic tumour?

A

bacteria and cell debris will be drained into the lymphatic tumour located within the tissues

19
Q

Explain how the lymphatic system and circulatory system are strongly connected

A

the two systems run alongside each other, often as a parallel set of vessels. Nearly all organs have a blood supply, so nearly all organs have a lymphatic drainage

20
Q

How are veins and lymphatic vessels described to be similar?

A

Lymphatic vessels are used for the drainage of lymph, just as veins are for the drainage of blood

21
Q

Lymph flows along lymphatic vessels and through…

A

..a series of lymph nodes

22
Q

How does lymph move?

A

largely through the squeezing action of adjacent muscles

23
Q

What keeps lymph flowing in the right direction?

A

valves

24
Q

Describe lymph nodes

A

bean-shaped organs, lie often in groups along the lymph vessels,c containing a meshwork of fibres

25
Q

Before returning to the venous circulation, how many lymph node does lymph usually pass through?

A

8-10 nodes

26
Q

What doe lymph nodes contain?

A

Millions of immune cells, particularly lymphocytes, dendritic cells and macrophages

27
Q

Lymph nodes can be described as filtering devices, why?

A

They filter matter such as, bacteria, cell debris, tumour cells

28
Q

How do lymph nodes filter matter?

A

engulf and break them down using macrophages

29
Q

What cells multiply in lymph nodes?

A

T and B cells
T = thymus cells
B = bone marrow derived
Both are types of lymphocytes

30
Q

What is ‘the spleen’ and where is it located?

A

essentially a very large lymph node, situated at the back, behind the stomach

31
Q

What does the spleen do?

A

breaks down the old red blood cells

can store blood

32
Q

What’s the importance of the spleen in pregnancy?

A

It is the site of red blood cell production in the foetus (as apposed to bone marrow in the adult)

33
Q

Where does maturation thymus lymphocytes occur?

A

The thymus gland

34
Q

What do bone marrow cells (B Cells) do?

A

Produce antibodies which can circulate around the body

35
Q

During maturation of thymus lymphocytes, what is removed?

A

Thymus cells (T cells) that recognise ‘self’ antigens

36
Q

What are ‘self’ antigens?

A

are (usually) proteins from our own tissues against which we could potentially mount an immune response

37
Q

What does MALT stand for?

A

Mucosa-associated lymphoid tissue

38
Q

What is the MALT?

A

A diffuse system of small concentrations of lymphoid tissue found in various submucosal membrane sites of the body such as; GI tract, oral passage, thyroid, breast, eyes and skin

39
Q

What is MALT populated by?

A

lymphocytes such as T and B cells, as well as plasma cells and macrophages, each of which is situated to encounter antigens passing through the mucosal epithelium

40
Q

What is lymphoid tissue?

A

isolated patches all round the body where they may be a site of infection

41
Q

What is mucous?

A

lining of the gut

42
Q

Give an example of MALT

A

The tonsils - patches of lymphoid tissue containing T and B cells

43
Q

The lymphatic system is a closed system. True or False?

A

False.

It is an open system. Continuous fluid and drainage action from the lymph

FMP1 A&P (31 decks)

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