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Questions and Answers
What is the primary study area of hematology?
What is the primary study area of hematology?
Which of the following components is NOT a formed element of blood?
Which of the following components is NOT a formed element of blood?
What is the typical pH range of blood?
What is the typical pH range of blood?
Which of the following is a function of blood?
Which of the following is a function of blood?
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What role do white blood cells play in the blood?
What role do white blood cells play in the blood?
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Study Notes
Cardiovascular System
- Composed of blood, heart, and blood vessels.
Blood Overview
- Blood is a liquid connective tissue made of cells in a liquid matrix known as plasma.
- Origin, composition, and functions of blood are similar across individuals but vary uniquely between them.
Hematology
- The study of blood, its formation, and associated disorders is termed hematology.
Functions of Blood
- Transports oxygen, carbon dioxide, nutrients, hormones, heat, and waste products.
- Regulates the homeostasis of body fluids, pH balance, body temperature, and cellular water content.
- Protects against blood loss through clotting and combats infections via white blood cells.
Composition of Blood
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Cellular Components (Formed Elements):
- Red blood cells (erythrocytes)
- White blood cells (leukocytes)
- Platelets (thrombocytes)
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Plasma:
- Composed of water, proteins, and various solutes.
Physical Characteristics of Blood
- Denser and more viscous than water.
- Normal temperature: approximately 38°C.
- pH range: 7.35 to 7.45, indicating a slightly alkaline nature.
- Color varies based on oxygen content.
- Accounts for about 8% of total body mass.
- Regulated by aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP) which adjust plasma water levels.
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Description
Explore the intricacies of the cardiovascular system, including the composition and functions of blood. This quiz covers essential concepts in hematology, from the role of red and white blood cells to the importance of plasma. Understand how blood contributes to homeostasis and protects the body.
