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Ann [662]
1 year ago
3

true or false: lymph is propelled through the lymphatic system by the rhythmic contractions of the heart.

Biology
1 answer:
pshichka [43]1 year ago
3 0

False as the lymphatic system does not have a pump as the heart does. Through the repetitive contraction of the vessels, the surrounding skeletal muscles, the thoracic "pump," and the rhythmic contraction of the vessels' walls, lymph is propelled.

Unlike the heart in the cardiovascular system, the lymphatic system has no pump. Skeletal muscle contraction, respiratory movement, and smooth muscle contraction in vessel walls all contribute to the pressure gradients that drive lymph through the channels.

Along with other types of blood cells, lymphocytes are produced in the red bone marrow and transported to the lymphatic organs by the blood. The lymphocytes multiply within the lymphatic organs when the body is exposed to germs and other foreign substances, and they are transported via the blood to the invasion site. This is a component of the immunological response, which aims to eliminate the invader.

Know more about the Lymphatic system at:

brainly.com/question/3318384

#SPJ4

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8 0
4 years ago
biết gen A quy định hat vàng trội hoàn toàn so với gen a quy định hạt xanh nằm trên NST thường . cho cây vàng tự thu phấn , kiểu
goldfiish [28.3K]

Answer:

YY là kiểu gen trội đồng hợp tử (2 alen Y). Kiểu hình của kiểu gen này có màu hạt vàng. Yy là kiểu gen dị hợp tử (một alen trội, một alen lặn). Kiểu hình của kiểu gen này có màu hạt vàng.

Explanation:

6 0
3 years ago
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Angelina_Jolie [31]

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