LYMPHATICS Flashcards

(37 cards)

0
Q

The lymphatic system consists of 3 parts
1
2
3

A
  1. Lymphatic vessels
  2. Lymph
  3. Lymph nodes
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1
Q

What does the lymphatic system do

A

Returns fluids that leak from the vascular system back to the blood

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2
Q

Lymphoid organs and tissues are the structural basis of ______ system

A

immune

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3
Q

Lymphoid organs and tissues include

S______, thymus, tonsils and lymphoid tissue

A

Spleen

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4
Q

_______ pressure is due to fluid pressing against a boundary

A

Hydrostatic

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5
Q

Hydrostatic pressure ‘_________’ fluid across the boundary

A

Pushes

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6
Q

______ pressure is due to non-diffusible solutes that cannot cross the boundary

A

Osmotic

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7
Q

_____ pressure “pulls” fluid across the boundary

A

Osmotic

In blood vessels it’s due to plasma proteins

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8
Q

Nutrients, waste, gases exec aged between blood and interstitial fluid, plasma proteins and fluids leak from the blood stream into the ________ space

A

interstitial

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9
Q

______] vessels return fluid (lymph) and plasma proteins to blood

A

Lymphatic

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10
Q

Why does the lymphatic system do this?

A

So that the cardiovascular system has enough blood to function

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11
Q

Lymphatic vessels is a one way system - lymph flows towards the ______

A

heart

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12
Q

_______ filaments provide structural (anchor) support so that interstitial fluid pressure doesn’t collapse lymphatic capillaries

A

Collagen

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13
Q

The walls of the lymphatic capillaries are not tightly joined - true or false?

A

True

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14
Q

L_____ are specialised lymphatic capillaries in the small intestine

A

Lacteals

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15
Q

Lymphatic capillaries drain to _______ _______ _______

A

lymphatic collecting vessels

16
Q

Vessels into trunks. Trunks into _______

17
Q

Nutrients are supplied to vessels from branching v_____ v_____

18
Q

Collecting vessels in the skin travel with s________ v_______

A

superficial veins

19
Q

Lymphatic _____ are formed by the union of the largest collecting vessels

20
Q

Lymph is delivered into one of the two large ducts
1.
2.

A
Right lymphatic duct
Thoracic duct (arises from the cisterns chyli)
21
Q

The ________ lymphatic duct drains the collecting vessels and trunk so from the right arm and ther hit side of the head and thorax

22
Q

The _______ duct arises from the cisterna chyli and drains the rest of the body

23
Q

Each duct empties lymph into _______ circulations at the junction of internal jugular and subclavian veins on its own side of the body

24
Lymph nodes are located along lymph ______. Lymph flows through nodes to be _______
Vessels | cleansed
25
Lymph is propelled by what?
Pulsations if nearby arteries, smooth muscle contractions in the wall of lymph vessels and mini valves preventing back flow
26
Does physical activity increase lymph flow
Yes
27
What type if cells control and manage the immune response by secreting chemicals that signal other Immune cells into defense: eg. Multiplication of B cells
T cells
28
What type of cells secrete antibodies
B cells
29
Lymphoid tissue is mainly composed of _______ connective tissue
reticular
30
The two main types of lymphoid tissue are
``` Diffuse lymphatic tissue Lymphatic follicles (nodules) ```
31
You would find _________ lymphatic tissue in Larger collections in the laminar propria of mucous membranes
Diffuse lymphatic tissue
32
Lymph ______ are embedded in connective tissue
nodes
33
What do lymph nodes do
Filter lymph and are apart of the immune system
34
The ____ of the lymph node contains follicles with germinal centers, heavy dividing B cells
cortex
35
Lymph enters via _____ lymphatic vessels and travels through large sub capsular sinus and smaller sinuses
afferent
36
Lymph exits the node via _____ vessels
efferent