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Biology > The Lymphatic System > Flashcards

The Lymphatic System Flashcards

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1
Q

Why is the lymphatic system important

A

Help body fight infection

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2
Q

What is the lymphatic system

A

Works as part of the circulatory system

returns the fluid that has leaked from the capillaries to circulating blood

Fluid called lymph is clear and similar to plasma but without plasma proteins

contains more lymphocytes than blood

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3
Q

The lymphatic system is made up of

A

Network of vessels, tissues and organs that get rid of toxins and unwanted materials to fight infection

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4
Q

What does the lymphatic system returns

A

Interstitial fluid from tissue to circulatory system

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5
Q

What does the lymphatic system pass excess of

A

Proteins back into the blood stream

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6
Q

What does the lymphatic system filter

A

Lymph to remove waste and toxic material

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7
Q

What does the lymphatic system produce and transport

A

Antibodies and lymphocytes

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8
Q

What does the lymphatic system transport and digest

A

Fats and fats soluble vitamins from intestine to other sites in body for storage

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9
Q

What are the lymph vessels

A

Act like veins and capillaries to transport lymph

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10
Q

What are the lymph nodes

A

Filter lymph to get rid of toxins, waste and pathogens

Found along lymph vessels

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11
Q

What are the lymph organs

A

Spleen and thymus

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12
Q

What is the thymus

A

T cells mature

Destroy virus infected cells

Instruct body to release other cells to fight infection

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13
Q

What are tonsils

A

Lymphoid tissue at junction of the pharynx and oral cavity

First line of defence against microorganisms

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14
Q

What is the bone marrow

A

All blood cells originate(haematopoesis) in the bone marrow

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15
Q

What for helper b cells do

A

Identify foreign bodies or material and trigger the immune response

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16
Q

What did killer T cells do

A

Find and destroy infected cells

17
Q

The spleen
Left side of the cranial abdomen
Enclosed by a

A

Capsule

18
Q

What are the two types of pulp

A

Red and white

19
Q

What is the red pulp

A

Filters blood

Destroys red blood cells

20
Q

What is the white pulp

A

Produces lymphocytes

Destroy bacteria

21
Q

What does fibrous strands create

A

Mesh inside

22
Q

What does white blood cells produce

A

Lymphocytes

23
Q

What does the spleen control

A

Erythrocyte levels which destroys red blood cells

24
Q

What does the spleen store

A

Blood- red blood cells and platelets reservoir

25
Q

What matures in the spleen

A

B cells and these secrete antibodies

26
Q

What does the spleen filter

A

Blood

Removes bacteria and particles

27
Q

What is the only type of lymphoid tissue that can flow through

A

Red blood cells

28
Q

The lymphatic system is the

A

First line of defence against disease

29
Q

The lymph vessels and nodes filter the lymphatic fluid containing

A

Antibodies

Lymphocytes

Bacteria

30
Q

The lymphatic system transports

A

Blood cells to and from the lymph nodes into the bone

31
Q

Support the immune response via swelling as a response to damage or the presence of

A

Histamine

32
Q

EXAM QUESTION
Where do T cells mature

A

Thymus

33
Q

EXAM QUESTION
What cells produce antibodies

A

B cells

34
Q

EXAM QUESTION
State the function of killer T cells and helper T cells in the immune response (2 marks)

A

Killer- find and destroy infected cells

Helper- identify foreign objects and trigger immune response

35
Q

EXAM QUESTION
State two structures of the lymphatic system (2 makes)

A

Lymph nodes

Spleen

Lymphatic vessels

Bone marrow

Tonsils

Thymus

36
Q

EXAM QUESTION
Explain the roles of the lymphatic system in the immune response (2marks)

A

First line of defence against disease

Vessels and nodes transport and filter lymph fluid

Contains antibodies and lymphocytes and bacteria

Transports blood cells to and from the lymph nodes into the bones

Supports the immune response

Swelling as a response to damage and histamine

Biology (34 decks)

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