Podcast
Questions and Answers
What organ in the body regulates erythrocyte production?
What organ in the body regulates erythrocyte production?
- Kidney (correct)
- Liver
- Pancreas
- Brain
When can erythroblastosis fetalis not possibly happen in the child of an Rh negative mother?
When can erythroblastosis fetalis not possibly happen in the child of an Rh negative mother?
- If the father is Rh- (correct)
- If the child is Rh positive
- If the father is Rh+
- If the child is Type O +
Platelets ____
Platelets ____
- Are the precursors of leukocytes
- Stick to the damaged area of a blood vessel and help seal the break (correct)
- Have multiple nuclei
- Have a lifespan of about 120 days
Which of the following is true about blood plasma?
Which of the following is true about blood plasma?
Which of the following is a characteristic of all leukocytes?
Which of the following is a characteristic of all leukocytes?
Which of the following is not a phase of hemostasis?
Which of the following is not a phase of hemostasis?
No visible cytoplasmic granules are present in ____
No visible cytoplasmic granules are present in ____
All of the following can be expected with polycythemia except
All of the following can be expected with polycythemia except
The plasma protein that is the major contributor to osmotic pressure is ____
The plasma protein that is the major contributor to osmotic pressure is ____
James has a hemoglobin measurement of 16g/100mL blood; this is _____
James has a hemoglobin measurement of 16g/100mL blood; this is _____
Select the incorrect statement regarding blood cell formation
Select the incorrect statement regarding blood cell formation
Which of the following statements does not describe blood?
Which of the following statements does not describe blood?
Megan has an infected puncture wound to her foot. What type of white blood cell would you expect to be elevated in a differential white cell count?
Megan has an infected puncture wound to her foot. What type of white blood cell would you expect to be elevated in a differential white cell count?
Some rat poisons contain a toxin that blocks the liver's ability to utilize vitamin K. Animals that consume this poison would die of
Some rat poisons contain a toxin that blocks the liver's ability to utilize vitamin K. Animals that consume this poison would die of
The disease sickle cell anemia is an example of what can happen if
The disease sickle cell anemia is an example of what can happen if
Each heme ring in the hemoglobin encloses an atom of _____
Each heme ring in the hemoglobin encloses an atom of _____
In adults, the only site of RBC production and the primary site of WBC formation is the
In adults, the only site of RBC production and the primary site of WBC formation is the
The yellow color that is visible in the eyes and skin in jaundice results from
The yellow color that is visible in the eyes and skin in jaundice results from
Which of the following is true of basophils?
Which of the following is true of basophils?
Which organ secretes most of the plasma proteins?
Which organ secretes most of the plasma proteins?
Which of the following proteins is found in plasma?
Which of the following proteins is found in plasma?
Plasma composes about _____ % of whole blood and water composes ___% of the plasma volume?
Plasma composes about _____ % of whole blood and water composes ___% of the plasma volume?
Each hemoglobin molecule contains
Each hemoglobin molecule contains
A moving blood clot is called a
A moving blood clot is called a
A person whose platelet count is 40,000/mL is suffering from
A person whose platelet count is 40,000/mL is suffering from
The average lifespan of a RBC is
The average lifespan of a RBC is
Which of the following statements concerning RBCs is false?
Which of the following statements concerning RBCs is false?
Whole blood for testing in a clinical laboratory is usually collected from a
Whole blood for testing in a clinical laboratory is usually collected from a
During contraction of heart muscle cells ____
During contraction of heart muscle cells ____
Compared to skeletal muscle, cardiac muscle ___
Compared to skeletal muscle, cardiac muscle ___
Select the correct statement about the structure of the heart wall
Select the correct statement about the structure of the heart wall
Select the correct statement about the heart valves
Select the correct statement about the heart valves
When viewing a dissected heart, it is easy to visually discern the right and left ventricles by
When viewing a dissected heart, it is easy to visually discern the right and left ventricles by
The tricuspid valve is closed ____
The tricuspid valve is closed ____
Which of the following is not part of the conduction system of the heart?
Which of the following is not part of the conduction system of the heart?
Foramen ovale _____
Foramen ovale _____
If the vagal nerves to the heart were cut, the result would be that ___
If the vagal nerves to the heart were cut, the result would be that ___
If cardiac muscle is deprived of its normal blood supply, damage would primarily result from ___
If cardiac muscle is deprived of its normal blood supply, damage would primarily result from ___
The fact that the left ventricle of the heart is thicker than the right ventricle reveals that it ____
The fact that the left ventricle of the heart is thicker than the right ventricle reveals that it ____
The source of blood carried to capillaries in the myocardium would be the
The source of blood carried to capillaries in the myocardium would be the
The term used for pain associated with deficient blood delivery to the heart that may be caused by the transient spasm of coronary arteries is
The term used for pain associated with deficient blood delivery to the heart that may be caused by the transient spasm of coronary arteries is
The condition where fluid compresses the heart and limits its ability to contract is called ___
The condition where fluid compresses the heart and limits its ability to contract is called ___
Blood within the pulmonary veins returns to the
Blood within the pulmonary veins returns to the
The P wave of a normal electrocardiogram indicates ____
The P wave of a normal electrocardiogram indicates ____
Blood returning to the heart from the systemic circuit first enters the
Blood returning to the heart from the systemic circuit first enters the
If the connection between the SA node and AV node becomes blocked,
If the connection between the SA node and AV node becomes blocked,
______ is to slow heart as ____ is to fast heart rate
______ is to slow heart as ____ is to fast heart rate
Artery is to ____ as vein is to _____
Artery is to ____ as vein is to _____
The following are structural components of the conducting system of the heart: 1. Purkinje fibers, 2. AV bundle, 3. AV node, 4. SA node, 5. Bundle branches. The sequence in which excitation would move through the system is
The following are structural components of the conducting system of the heart: 1. Purkinje fibers, 2. AV bundle, 3. AV node, 4. SA node, 5. Bundle branches. The sequence in which excitation would move through the system is
The following is a list of vessels and structures that are associated with the heart: 1. Right atrium, 2. Left atrium, 3. Right ventricle, 4. Left ventricle, 5. Vena Cava, 6. Aorta, 7. Pulmonary trunk, 8. Pulmonary veins. What is the correct order for the flow of blood entering from the systemic circulation?
The following is a list of vessels and structures that are associated with the heart: 1. Right atrium, 2. Left atrium, 3. Right ventricle, 4. Left ventricle, 5. Vena Cava, 6. Aorta, 7. Pulmonary trunk, 8. Pulmonary veins. What is the correct order for the flow of blood entering from the systemic circulation?
The visceral pericardium is the same as the
The visceral pericardium is the same as the
The ear-like extensions of the atrium is the
The ear-like extensions of the atrium is the
What is Stenosis?
What is Stenosis?
What is Diapedesis?
What is Diapedesis?
What is Hemostasis?
What is Hemostasis?
What does Intrinsic mean?
What does Intrinsic mean?
What is an Intercalated disk?
What is an Intercalated disk?
What is Cardiac output?
What is Cardiac output?
What is Stroke volume?
What is Stroke volume?
What is Dilated cardiomyopathy?
What is Dilated cardiomyopathy?
Study Notes
Erythrocyte and Leukocyte Production
- Kidneys regulate erythrocyte production in the body.
- Erythroblastosis fetalis occurs in Rh-positive children of Rh-negative mothers if the father is Rh-positive.
- Platelets adhere to damaged blood vessels to assist in the sealing process.
Blood Plasma and Composition
- Blood plasma is approximately 90% water and plays a crucial role in maintaining osmotic pressure, mainly through the protein albumin.
- Plasma proteins, including insulin and prolactin, are secreted primarily by the liver.
- Plasma constitutes around 55% of total blood volume, with water making up 92% of plasma's composition.
Hematology and Blood Cell Characteristics
- All leukocytes are nucleated, but they vary in function and characteristics, such as having granules.
- Polycythemia is characterized by increased blood volume, high pressure, and hematocrit, but not low viscosity.
- Hemoglobin consists of four heme groups, each containing an iron atom.
Cardiovascular System Structure and Function
- The heart wall primarily consists of the myocardium, which is the contracting layer.
- The left ventricle is thicker than the right because it pumps blood against higher resistance within systemic circulation.
- The tricuspid valve closes during ventricular systole to prevent backflow into the atrium.
Cardiac Conduction and Electrical Activity
- The conduction system of the heart includes the SA node, AV node, bundle of His, and Purkinje fibers.
- Impaired connection between the SA and AV nodes can lead to slower ventricular beats, affecting cardiac output.
- The P wave of an electrocardiogram indicates atrial depolarization; its presence and shape provide insights into the heart's electrical activity.
Hemostasis and Vascular Health
- Hemostasis refers to the process of stopping bleeding, crucial for maintaining vascular integrity.
- Diapedesis is the movement of white blood cells through vessel walls into tissues, demonstrating immune responses.
Clinical Conditions
- Cardiac tamponade occurs when fluid accumulation compresses the heart, impairing contractions.
- Sickle cell anemia results from a genetic defect in hemoglobin, affecting its function and the shape of red blood cells.
Additional Terms
- Stenosis refers to the narrowing or abnormal constriction of blood vessels.
- Intrinsic characteristics refer to those that are naturally part of human physiology.
- Cardiac output measures the volume of blood pumped from a ventricle in one minute, while stroke volume is the amount ejected per contraction.
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Description
Explore the fascinating world of blood components, including erythrocyte and leukocyte production, blood plasma composition, and the characteristics of various blood cells. This quiz covers essential concepts such as the role of kidneys in erythrocyte production and the significance of plasma proteins. Test your knowledge and deepen your understanding of hematology!
