Question:
An Advantage of a fever is that it causes tachycardia which helps the patient pump more blood to the places that need it more
true
false
Answer
TRUE
Explanation
Fever is caused by high temperatures above normal as a result of infection. During infection, the body increases the heart rate to pump more blood to the tissues infected. By doing so, more white blood cells are pumped into those tissues which helps speed the process of healing and eliminating the bacteria
Question:
An Advantage of a fever is that it causes tachycardia which helps the patient pump more blood to the places that need it more
true
false
Answer
TRUE
Explanation
Fever is caused by high temperatures above normal as a result of infection. To reduce the effects of infection, there is an increase in temperature in the tissues infected. The body tries to deal with high temperature caused by fever through high heart rate, breathing rate and blood circulation to the skin. High heart rate (tachycardia) is beneficial to the healing process because more white blood cells are taken to the site of infection speeding healing process
Answer
innate immunity
Explanation
The body's immune system is divided into two main branches; the adaptive and the innate immune system. The innate immunity is a type of nonspecific defense mechanism that provides immediate protection to the body whenever an antigen appears. Among the components of the innate immune system includes the blood chemicals, physical barriers like the skin, and the immune cells which attack foreign cells like a bacteria cell.
Question:
A patient has been infected with a bacteria, the macrophages get to work by consuming the bacteria ,this is an example of
Adaptive immunity
ig mediated immunity
innate immunity
Specific immunity
Answer
innate immunity
Explanation
The body's immune system is divided into two main branches; the adaptive and the innate immune system. The innate immunity is a type of nonspecific defense mechanism that provides immediate protection to the body whenever an antigen appears. Among the components of the innate immune system includes the blood chemicals, physical barriers like the skin, and the immune cells which attack foreign cells like a bacteria cell.
Question:
1.Carbon monoxide (CO) poisoning is a very dangerous situation because hemoglobin has greater affinity for CO than for O2. Based on this information, by which mechanism does CO poisoning work?
a) CO inhibits the enzyme carbonic anhydrase (CA) and therefore prevents CO2 from being transported as bicarbonate ions to the lungs for excretion.
b) CO paralyzes the diaphragm and therefore prevents the expansion of the lungs and ventilation.
c) CO decreases the plasma solubility of O2 and prevents the delivery of O2 to the tissues.
d) CO destroys hemoglobin and therefore prevents CO2 from being transported to the lungs for excretion.
e) CO decreases hemoglobin oxygen saturation and prevents the delivery of O2 to the tissues.
Answer
e) CO decreases hemoglobin oxygen saturation and prevents the delivery of O2 to the tissues.
Explanation
Hemoglobin is the protein that transports oxygen. Each hemoglobin molecule has four subunits with each binding a molecule of oxygen. Carbon dioxide can readily associate and dissociate from hemoglobin, but carbon monoxide cannot and because it has higher affinity for hemoglobin than oxygen, it binds hemoglobin preferentially over oxygen. When carbon monoxide is bound to hemoglobin, oxygen cannot bind which decreases its saturation with oxygen.
