Lymphatic And Immune Flashcards

1
Q

Lymphatic system functions

A
  • maintain lymphocytes
  • fluids from tissue to the blood steam
  • lipids from digestive system to bloodstream
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2
Q

Lymphatic vessels

A

Carry lymph fluid from tissues to the heart

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3
Q

Lymphatic capillaries

A

Structured like fenestrated blood capillaries

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4
Q

Large lymphatic vessels

A
  • like veins
  • have valves
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5
Q

Lymphatic organs/ tissue

A

-have afibrouse capsules
- soft tissue
- lots of lymphocytes

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6
Q

Lymph nodes

A
  • Filter lymph
  • concentrated in certain areas of the body
  • destroy pathogens
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7
Q

Thymus

A
  • above the heart
  • produces lymphocytes
  • hormones regulate immune system
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8
Q

Spleen

A
  • filters blood
  • recycles worn out red blood cells
  • stores RBC
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9
Q

Tonsils

A
  • pharyngeal
  • palintine
  • lingual
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10
Q

Immunity

A

Ability to resist injury/ disease from outside sources

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11
Q

Pathogens

A

Disease causing agent
- bacterial
- virus

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12
Q

Viruses

A
  • non living
  • infiltrates cell to produce more virus
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13
Q

Innate immunity

A
  • general defense
  • can’t distinguish specific threats
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14
Q

Adaptive immunity

A
  • responds to specific threats
  • adapts
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15
Q

Physical barriers

A
  • innate immunity
  • skin
  • hair
  • mucus
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16
Q

Phagocytes

A
  • innate immunity
  • digest pathogens
  • white blood cells
17
Q

Immune servalence

A
  • innate immunity
  • destroys infected or cancerous body cells