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Final Bio actual solution graded A+
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Final Bio ac tual solution graded A+What kinds of cells engulf whatever foreign cells and molecules they encounter and recognize? - answer ✅✅Phagocytic Cells
C Which of the following is a response of our innate defense system? - answer ✅✅Inflammation
Which of the following is one of the body's first lines of defense against infection? - answer ✅✅Skin
A role of the lymphatic system is to - answer ✅✅return tissue fluid to the circulatory system
Innate Immunity or Defense - answer ✅✅the part that is always ready in its final form and ready to act. It doesn't change since the time we are born and attacks pathogens indiscriminately. Adaptive Immunity or Defense - answer ✅✅continually develops over the lifetime as you have certain encounters with specific pathogens and is found only in vertebrates. It must be activated by exposure to a specific invader.
Detail three ways that our external innate defenses protect us from infection - answer ✅✅intact skin forming a tough outer layer
that bacteria cant penetrate, nostril hairs filter particles from the incoming air, and ear wax traps pathogens before they can travel too far down the ear canal.
What are the functions of phagocytic cells? - answer ✅✅engulf foreign cells or molecules and debris from dead cells by cellular eating (phagocytosis).
What are the functions of natural killer cells? - answer ✅✅recognize virus-infected and cancerous body cells and release
chemicals that kill diseased cells.
Describe (not list) each major step of the inflammatory response. - answer ✅✅There is an initial tissue injury which releases chemical signals. Dilation and increases leakiness of local blood vessels creates the migration of phagocytic cells to the area. Phagocytic ells engulf bacteria and cell debris. The tissue heals
Why do our bodies produce histamine? - answer ✅✅So that blood
vessels can dilate during an inflammatory response to injured cells.
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