Exam (elaborations)
Blood & Cardiovascular System Detailed Questions and Expert Answers
- Course
- Cardiovascular system
- Institution
- Johns Hopkins University
Blood & Cardiovascular System Detailed Questions and Expert Answers
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Blood & Cardiovascular System Detailed Questionsand Expert Answers
What are the main functions of blood and the cardiovascular system? - ANS
Transport gases, nutrients, wastes, & hormones
Defense against pathogens & bleeding
Regulation of body temperature, water volume, & pH
In what part of the body are all blood cells made? - ANS Red bone marrow - made
from division of stem cells
What are the 3 formed elements in blood? - ANS Red Blood Cells (Erythrocytes)
White Blood Cells (Leukocytes)
Platelets (Thrombocytes)
What are Red Blood Cells' main functions? - ANS Transport O2 & CO2
What are White Blood Cells' main functions? - ANS Immune system functions
What are Platelets' main functions? - ANS Cell fragments involved in clotting
What are the components found in plasma? - ANS H2O
Proteins
, Salts & ions
Gases
Nutrients
Wastes
Hormones
Where is the protein Hemoglobin found, and what is it's main function? - ANS Red
Blood Cells
Transport oxygen
How does the pH of the blood play a role in helping Hemoglobin do it's job? - ANS
Binding of O2 depends on pH
In which part(s) of the body does Hemoglobin pick up O2? - ANS In the lungs
In which part(s) of the body does Hemoglobin drop off O2? - ANS In the tissues
Which organelle are Red Blood Cells missing? Why? - ANS Nucleus - to make more
room for hemoglobin
How are Red Blood Cells' life cycle a little different than some other cells in the
body? - ANS Life span is 120 days
Destroyed by macrophages in the liver
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