Skip to main content
Ch. 20 The Lymphatic System and Immunity
Amerman- Human Anatomy & Physiology 3e
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814당신이 사용하는 게 아니라요?교과서 변경
20장, 문제 L3.2a

Carla presents to her physician with a complaint of swollen axillary lymph nodes. Her physician performs a breast exam and finds a tumor on the same side as the swollen nodes.
a. Explain what process has likely caused her nodes to swell.

검증된 단계별 안내
1
Understand the role of lymph nodes: Lymph nodes are small, bean-shaped structures that are part of the lymphatic system. They filter lymph fluid and house immune cells that respond to infections, inflammation, or abnormal cells, such as cancer cells.
Recognize the connection between the tumor and swollen lymph nodes: Swollen axillary lymph nodes (located in the armpit region) are often a sign that the lymphatic system is responding to a nearby issue, such as a tumor in the breast. Tumor cells can invade lymphatic vessels and travel to nearby lymph nodes, triggering an immune response and causing swelling.
Explain the immune response: When tumor cells reach the lymph nodes, immune cells such as macrophages and lymphocytes are activated. These cells attempt to destroy the abnormal cells, leading to inflammation and swelling of the lymph nodes.
Discuss the process of metastasis: Tumor cells can spread from their original site (the breast, in this case) to nearby lymph nodes through the lymphatic system. This process is known as metastasis and is a common pathway for cancer progression.
Highlight the importance of further evaluation: Swollen lymph nodes in the presence of a tumor suggest that the cancer may have spread. Additional diagnostic tests, such as imaging studies or a biopsy of the lymph nodes, are typically performed to assess the extent of the spread and guide treatment decisions.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Lymphatic System Function

The lymphatic system is a network of vessels and nodes that plays a crucial role in immune function and fluid balance. It helps transport lymph, a fluid containing infection-fighting white blood cells, throughout the body. When there is an infection or malignancy, lymph nodes can become swollen as they filter out pathogens or cancer cells, indicating an active immune response.
추천 영상:
가이드 코스
3:57
Functions of the Lymphatic System

Metastasis

Metastasis refers to the spread of cancer cells from the original tumor to other parts of the body. In this case, the tumor in Carla's breast may have sent cancerous cells to the axillary lymph nodes, causing them to swell. This process is a critical concern in cancer diagnosis and treatment, as it can indicate the stage and aggressiveness of the disease.
추천 영상:

Inflammatory Response

The inflammatory response is the body's immediate reaction to injury or infection, characterized by redness, heat, swelling, and pain. In the context of swollen lymph nodes, this response can occur due to the presence of cancer cells or infection, leading to an accumulation of immune cells in the lymph nodes. This process is essential for understanding how the body reacts to potential threats and the implications for health.
추천 영상:
가이드 코스
2:10
Damaging Effects of the Inflammatory Response
관련 실천
교과서 질문

Mr. White developed neutropenia as a consequence of cancer chemotherapy, which destroyed much of his bone marrow. What other components of the immune system would be harmed by bone marrow destruction? Would you expect his hematocrit to be elevated or decreased? What effects would you expect to see from this change in hematocrit?

915
views
교과서 질문

Your friend tests her snake-wrangling skills on an eastern diamondback rattlesnake, and is bitten and envenomated (injected with the snake's venom). In the emergency department, doctors administer the antivenin CroFab, which contains antibodies to the toxins in snake venom. Is this an example of active or passive immunity? Will this confer any lasting protection to your friend?

1111
views
교과서 질문

Mr. White has been diagnosed with febrile neutropenia, a condition characterized by the presence of a fever with an extremely low number of neutrophils in the blood. Blood work demonstrates the presence of bacteria in his blood. Explain why neutropenia might lead to a bacterial infection. Why is a bacterial infection particularly dangerous for Mr. White?

146
views
교과서 질문

Carla presents to her physician with a complaint of swollen axillary lymph nodes. Her physician performs a breast exam and finds a tumor on the same side as the swollen nodes.

b. Carla undergoes surgery to have the tumor and affected lymph nodes and surrounding lymphatic vessels removed. Predict any complications Carla might have after the surgery that could arise from removal of the lymph nodes and vessels.

157
views
교과서 질문

The lymphoid organ that filters the blood is the ______, and the lymphoid organ that filters the lymph is the______.

1038
views
교과서 질문

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Clusters of MALT located around the oral and nasal cavities are known as Peyer's patches.

866
views