Isabel Marrero Rivera And Christian Martorell ☺Teacher Imy☺ The Lymphatic System Isabel Marrero Rivera And Christian Martorell ☺Teacher Imy☺

What is the Lymphatic System? The lymphatic system is part of the immune system and helps destroy microorganisms that enter the body. It is closely related to the circulatory system because both systems move liquids through the body, and both contain white blood cells.

Parts of the Lymphatic System Tonsils Lymph nodes Thymus Spleen Lymph vessels

Functions It absorbs the tissue fluid that collects around cells. It absorbs fats from the digestive system and transports them to the circulatory system. It filters dead cells, viruses, bacteria, and other unneeded particles from the tissue fluid and then returns it to the circulatory system. It helps fight off illness and infections.

Lymph Water, white blood cells, and dissolved materials such as salts and glucose, leak out of capillary walls and into spaces that surround tissue cells. That fluid is called tissue fluid. Cells absorb the materials they need from tissue fluid and then release wastes. 90% is absorbed. About 10% of the tissue fluid is absorbed by the lymph vessels is called lymph.

Lymph Vessels The lymphatic system arms a network of lymph vessels that look similar to the blood vessels in the circulatory system. Lymph vessels absorb and transport lymph. The lymph is pushed through the lymph vessels by contractions of the muscles. The lymph is not pumped through the lymph vessels In the heart.

Lymph nodes Clusters of small, spongy structures are called lymph nodes. Lymph nodes store white blood cells that attack and destroy the trapped particles, which are bacteria, viruses, fungi, and pieces of dead cells. Large groups of lymph nodes are in the neck, the groin, and the armpits.

Lymph nodes Your lymph nodes swell when you have an infection. They swell because your body increases its production of white blood cells to fight that infection. The swelling disappears when the infection is gone.

Video http://www.youtube.com/watch?v=Kh- XdNnTZUo

Bone Marrow and Thymus Lymphocytes are white blood cells that destroy pathogens. Pathogens are infection-causing microorganisms such as viruses and bacteria. Bone marrow is the spongy center where red and white blood cells, including lymphocytes, form. Lymphocytes include B and T cells.

Bone Marrow and Thymus B cells mature in bone marrow T cells mature in the thymus gland. The thymus is the organ of the lymphatic system in which T cells complete their development. After immature T cells move from the bone marrow to the thymus, they develop the ability to recognize and destroy body cells that have been infected by microorganisms.

Spleen The spleen is an organ of the lymphatic system that recycles worn-out red blood cells and produces and stores lymphocytes. The spleen also stores blood and platelets. If a person is injured and loses a lot of blood, the spleen can release stored blood and platelets into the circulatory system.

Tonsils Your tonsils are cluster of lymph tissue on the sides of your throat. They help protecting your body by trapping and destroying pathogens that enter through your mouth or nose. You can live without tonsils.

Lymph Diseases and Disorders Damage to the lymphatic system from injury or surgery can prevent tissue fluid from draining into lymph vessels. Recall that the action of your body muscles pushes lymph through the lymph vessels. Inactivity cause lymph buildup and swelling. If the cells of your tonsils become infected, you have tonsillitis—an inflammation of the tonsils.

The Lymphatic System and Homeostasis The lymphatic system helps maintain your body’s homeostasis by regulating fluid buildup around cells. It supports the circulatory system by cleaning fluids and replacing them in the bloodstream.

SPECIAL ACTIVITY: ¡¡¡¡¡¡¡JEOPARDY!!!!!!!

Instructions We will divide you into 2 groups. You will choose the amount of points for the question. Every time we say “GO” you will raise your hand. The first one who raises it’s hand, will be the person to answer. If you get a question wrong, your opponent will answer and you get those point off your team.

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Bonus: 1,000 Jeopardy 100 200 300 Lymphatic System Lymph Bone Marrow and Thymus Spleen Tonsils Diseases Homeostasis 100 200 300 Bonus: 1,000

Home Lymphatic System: 100 What is the Lymphatic System? Is a part of the digestive system and helps build microorganisms that enter the body. Is a part of the immune system and helps destroy microorganisms that enter the body. Is a part of the nervous system and helps build protein that enter the body Correct Answer: B Home

Home Lymphatic System: 200 Mention 3 parts of the Lymphatic System Correct Answer: Tonsils, Lymph Nodes, Thymus, Spleen, Lymph Vessels Home

Home Lymphatic System: 300 The Function of the Lymphatic System is It filters dead cells, viruses, bacteria, and other unneeded particles from the tissue fluid and then returns it to the circulatory system. It filters proteins, nutrients, fats and needed particles from the blood fluid and then returns it to the nervous system. It filters blood vessels from the tissue fluid and then returns it to the digestive system. Correct Answer: A Home

Home Lymph: 100 What is the Lymph? 30% of the tissue fluid is absorbed by the lymph vessels. 70% of the tissue fluid is absorbed by the lymph vessels. 10% of the tissue fluid is absorbed by the lymph vessels. Correct Answer: C Home

Home Lymph: 200 True or False The lymph is not pumped through the lymph vessles in the heart. Correct Answer: True Home

Lymph: 300 Clusters of small, spongy structures called_____________. A. Lymph Vessels B. Lymph Nodes C. Lymph Correct Answer: B. Lymph Nodes Home

Bone Marrow and Thymus: 100 Where do B-Cells mature in? Correct Answer: Bone Marrow Home

Bone Marrow and Thymus: 200 Lymphocistes include which cells? A. A and C cells B. T and B cells C. D and G cells Correct Answer: B Home

Bone Marrow and Thymus: 300 After immature T cells move from the bone marrow to the thymus, what abilities they develop? Correct Answer: After immature T cells move from the bone marrow to the thymus, they develop the ability to recognize and destroy body cells that have been infected by microorganisms. Home

Home Spleen: 100 The spleen is an organ of what system? Nervous System Digestive System Lymphatic System Correct Answer: C. Lymphatic System Home

Home Spleen: 200 True or False (If false, explain why) The spleen stores blood and nutrients Correct Answer: FALSE because it stores blood and platelets. Home

Home Spleen: 300 Fill the sentence If a person is injured and looses a lot of blood, the spleen can release _________________ and platelets into the circulatory system. Correct Answer: Stored blood Home

Home Tonsils: 100 What are tonsils? Correct Answer: Your tonsils are cluster of lymph tissue on the sides of your throat. Home

Home Tonsils: 200 Can you live with tonsils or not? A. Yes B. No Correct Answer: A Home

Home Tonsils: 300 True or False They help protecting your body by trapping and destroying pathogens that enter through your mouth or nose. Correct Answer: True Home

Lymph Disease and Disorders: 100 What happens if you damage your Lymphatic Disease? Correct Answer: Damage to the lymphatic system from injury or surgery can prevent tissue fluid from draining into lymph vessels. Home

Lymph Disease and Disorders: 200 True or False Inactivity causes lymph buildup and accomodation. Correct Answer: FALSE! Causes lymph buildup and swelling. Home

Lymph Disease and Disorders: 300 What is tonsillitis? A. Inflammation of the tongue B. Inflammation of the tonsils C. Inflammation of the teeth Correct Answer: B Home

Home Homeostasis: 100 Fill in the sentence The lymphatic system helps mantain your body’s __________ by regulating fluid buildup around _____. A. Homeostasis, cells B. Lymph, blood C. Homeostasis, vessels Correct Answer: A Home

Homeostasis: 200 Does the lymphatic system support the circulatory system by cleaning fluids and replacing them in the bloodstream? Correct Answer: YES Home

BONUS: 1,000 FILL IN THE BLANKS

BONUS: 1,000 Correct Answers

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References Science Books Pages 585 to 589