22 Questions
Why would the removal of large quantities of blood have negative effects on a patient?
It would reduce the oxygen-carrying capacity of the blood.
Which physiological component is more essential to overall bodily function, the heart or the capillaries?
The capillaries, as they allow for nutrient exchange with tissues.
What is a likely reason for experiencing swelling in the feet and ankles after sitting for extended periods?
Fluid accumulation due to lack of movement and gravity.
Why would first babies rarely be affected by haemolytic disease of the newborn if the mother has Rh-negative blood?
The mother does not produce anti-Rh antibodies during the first pregnancy.
In which scenario would haemolytic disease of the newborn be more likely to occur?
If the mother has Rh-negative blood and the fetus has Rh-positive blood.
Why does the blood need to be pumped twice for each complete circulation through the body and lungs?
To maintain blood pressure and ensure proper circulation
What is the function of the atrioventricular valves in the heart?
Prevent backflow of blood into the atria
Why is blood red?
Because of the presence of hemoglobin
What causes someone with an infected toe to experience a lump in their groin?
Inflammation of lymph nodes in response to infection and the closest lymph nodes to the toe is in the groin
How is oxygen carried in the blood?
Bound to hemoglobin in red blood cells
What is the purpose of semilunar valves in the heart?
Control blood flow out of the heart into arteries
During exercise, what changes occur in blood flow?
Increased oxygen delivery to muscles
'Circulation' can be defined as:
'The movement of blood through vessels in the body'
What is the main function of the lymphatic system?
Removing excess fluid and waste from tissues
How does the structure of a red blood cell relate to its function?
Bi-concave shape for efficient gas exchange
Why were early attempts at blood transfusion risky and often fatal?
Mismatch of ABO blood groups
Which organ is responsible for the sequence of events in blood clotting?
Liver
How does an artery's structure contribute to its function?
Thick muscular walls for high pressure pumping
In the ABO blood group system, which antigen is present in type A blood?
Antigen A
'Bad blood' was once believed to cause disease. What common medical practice was associated with this belief?
'Blood-letting' or bleeding patients
Why must the donor's ABO blood group match the receiver's when giving plasma in a transfusion?
'Mismatched blood groups' risks
What is the primary function of the heart?
Pumping blood throughout the body
Test your knowledge on human perspectives related to blood removal effects and body importance based on Chapter 5 of ATAR Units 1 & 2. Questions include the impact of large blood removal on a patient, the importance of the heart vs. capillaries, and the swelling of feet and ankles after long periods of sitting.
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