Homework Answers
1. An EKG is a device for measuring blood pressure. (FALSE)
EKG machine is designed to measure ELECTRO CARDIO GRAPH.
2. The exchange between oxygen and carbon dioxide takes place in arteries. (FALSE)
The exchange between oxygen and carbon dioxide takes place in arterioles.
3. Blood is composed of plasma, red blood cells, white blood cells, and platelets. (TRUE)
4. The average pulse is 60-80 beats/min. (FALSE)
The average pulse is 60-100beats/min.
5. Veins carry blood away from the heart.(FALSE)
Veins carry blood towards the heart.
6. The vessels that nourish the heart are the coronary arteries.(TRUE)
7. Shortness of breath - dyspnea (b)
8.Chest pain - angina (a)
9. Swelling of tissue - edema (f)
10. Irregular heartbeat - arrhythmia (d)
11. Rapid heartbeat - tachycardia (e)
12. Bleeding - hemorrhage (c)
13. The lymphatic system is designed to filter the lymph and drain off excess fluid from space between cells.
Answer - d.
option c is wrong because the lymphatic system does not carry red blood cells, it carries white blood cells to different parts of the body.
14. The lymphatic system includes lymph nodes and spleen.
The spleen is a vital part of the lymphatic system which recycle old RBCs and stored WBC, PLATELETS.
Answer - c.
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na obnerence yorm Flease sShow work & state assumptions. In the human lymphatic system, the spleen works to filter out old or damaged red blood cells and to create white blood cells (leukocytes). The spleen allows healthy red blood cells (erythrocytes) to pass through and uses lymphocytes, a type of white blood cell, to break down unhealthy erythrocytes into components that can be saved and reused to make new red blood cells. The average human body contains 4.968355 L of...
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i am a little confused with the circulatory system.
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