Multiple Choice
Which structure within a lymph node is responsible for filtering lymph and contains lymphocytes arranged in follicles?
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21. The Immune System
Introduction to the Immune System
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How do the circulatory system and immune system work together to respond to an injury?
A
The immune system uses the nervous system to send signals to the injury site, bypassing the circulatory system.
B
The circulatory system prevents immune cells from reaching the injury site to avoid inflammation.
C
The immune system directly repairs damaged blood vessels without the need for the circulatory system.
D
The circulatory system transports immune cells to the site of injury to initiate the healing process.
Verified step by step guidance1
Understand the role of the circulatory system: The circulatory system is responsible for transporting blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body. It also plays a crucial role in transporting immune cells to sites of injury or infection.
Recognize the function of the immune system: The immune system is the body's defense mechanism against pathogens and injury. It involves various cells, tissues, and organs that work together to identify and eliminate foreign invaders and repair damaged tissues.
Identify the interaction between the two systems: When an injury occurs, the immune system detects the damage and signals the need for an immune response. The circulatory system then transports immune cells, such as white blood cells, to the site of injury.
Explain the process of immune response at the injury site: Once the immune cells reach the injury site, they work to eliminate any pathogens, clear out damaged cells, and initiate the healing process. This may involve inflammation, which is a natural part of the immune response to help isolate and repair the damaged area.
Summarize the collaboration: The circulatory system and immune system work together by using the circulatory system as a transport network to deliver immune cells to the injury site, where they can perform their functions to protect and heal the body.
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