Lymphatic System Flashcards

1
Q

Describe the three functions of the lymphatic system?

A
  • Drain the excess interstitial fluid from tissue spaces & return it to the blood
  • Transport lipids and lipid-soluble vitamins from the villi in the small intestines to the blood
  • As part of the immune system destroys microbes & cancerous or foreign cells
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2
Q

Name the cells of lymph nodes?

A
  • B-cells
  • T-cells
  • Macrophages
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3
Q

Describe the role of the cells of lymph nodes?

A
  • The function of lymphocytes in the nodes is to stimulate immune responses (covered in immunity notes)
  • The function of the macrophages in the nodes is to destroy foreign substances through phagocytosis
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4
Q

State the location in the body of the lymphatic nodules and lymph nodes?

A

Lymphatic nodules are located in the mucous membranes of the body – tonsils & GI tract (appendix & Peyer’s patches in the small intestine)
Lymph nodes are located throughout the body and are scattered along the lymphatic vessels

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5
Q

Describe the anatomical position of the spleen?

A

Located in the left hypochondriac region, between stomach & diaphragm

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6
Q

Describe the function of the spleen?

A
  • Remove damaged blood cells & platelets
  • Store platelets (1/3 of the body’s supply)
  • Stores red blood cells (250ml in adult)
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7
Q

Describe the differences between cancerous nodes and infected nodes?

A
  • Cancerous: Not moveable, firm, non-tender, enlarge

- Infective: Moveable, soft, very tender, enlarge

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