2.03 remember the structures of the lymphatic system

2.03 Remember the structures of the lymphatic system

2.03 Remember the structures of the lymphatic system

What are the structures of the

lymphatic system?

2.03 Remember the stuctures of the lymphatic system

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2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

Lymph fluidLymph fluid

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Lymph glandsLymph glands

Lymph vesselsLymph vessels

Lymph nodesLymph nodes

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Lymph fluid•straw-colored•Clear•Contains:

• Water• Granulocytes• Lymphocytes

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Lymph vessels•parallel to blood vessels•transport lymph

• Carries digested food, oxygen, hormones to cells

• Excretes urea and carbon dioxide away from the cells

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Lymph vessels parallel to blood vessels

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Lymph vessels•Lacteals

• Specialized lymph vessels in the small intestines, absorb digested fats and transport them to the circulatory system

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Lymph vessels•Lymphatic ducts

• Large lymph vessels• Thoracic duct• Also called the left

lymphatic duct• receives lymph

from the left side as pictured

• Right lymphatic duct• Lymph flows only in one

direction (body organs to R or L subclavian veins to superior vena cava of the heart)

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Lymph nodesLymph nodes•tiny, oval-shaped structurestiny, oval-shaped structures•range in size from a pinhead range in size from a pinhead to an almondto an almond•Recognize a foreign substance Recognize a foreign substance and release lymphocytes, reach and release lymphocytes, reach the blood and anitbodies are the blood and anitbodies are made to attack the made to attack the microorganismmicroorganism

Lymph node

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Lymph nodes

•Where are lymph nodes located?

•Why are there so many?

•If the amount of foreign substance is too large and cannot be destroyed then the lymph nodes become enlarged its known as adenitis

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Tonsils•3 pairs•masses of lymphatic tissue

1. Palatine tonsils• sides of throat

2. Adenoids• upper throat

3. Lingual tonsils• back of tongue

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Say “aahhh”

Why this is helpful?

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Spleen

• Sac-like mass of

lymphatic tissue

• Located in the LUQ• Forms lymphocytes and

monocytes; blood passing through is filtered

• Destroys old erythrocytes

2.03 Remember the stuctures of the lymphatic system

Thymus glandThymus gland • located in the located in the

upper, upper, anterior anterior chestchest

• also an also an endocrine endocrine glandgland

• Produces T-Produces T-lymphocyteslymphocytes

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Structures of the lymphatic system

2.03 Remember the stuctures of the lymphatic system

Structures of the lymphatic system

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Thymus gland

What is unique about the thymus gland?

2.03 Remember the structures of the lymphatic system

What are the structures of the

lymphatic system?

2.03 Remember the stuctures of the lymphatic system

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