Textbook Question
Leukocytes are:
a. Nucleated cells that function in blood clotting
b. Nucleated cells that function in immunity
c. Anucleate cells that function in blood clotting
d. Anucleate cells that function in immunity
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Ch. 19 Blood
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology24
- Ch. 2 The Chemistry of Life37
- Ch. 3 The Cell54
- Ch. 4 Histology46
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System35
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System41
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart28
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity41
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Not the one you use?Change textbook
Chapter 19, Problem 5
Erythropoiesis requires stimulation from the hormone:
a. Thrombin
b. Thrombopoietin
c. Thymosin
d. Erythropoietin
Verified step by step guidance1
Step 1: Understand the term 'erythropoiesis.' Erythropoiesis refers to the process of producing red blood cells (erythrocytes) in the bone marrow. This process is essential for maintaining oxygen transport in the body.
Step 2: Identify the role of hormones in erythropoiesis. Hormones act as signaling molecules that regulate various physiological processes, including the production of red blood cells.
Step 3: Review the options provided in the question: a) Thrombin, b) Thrombopoietin, c) Thymosin, and d) Erythropoietin. Each of these hormones has a specific function in the body.
Step 4: Match the correct hormone to its function. Erythropoietin is the hormone responsible for stimulating erythropoiesis. It is produced primarily by the kidneys in response to low oxygen levels in the blood and acts on the bone marrow to increase red blood cell production.
Step 5: Eliminate the incorrect options: Thrombin is involved in blood clotting, Thrombopoietin regulates platelet production, and Thymosin is associated with T-cell development in the immune system. These hormones are not related to erythropoiesis.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Erythropoiesis
Erythropoiesis is the process of producing red blood cells (erythrocytes) from precursor cells in the bone marrow. This process is crucial for maintaining adequate oxygen transport in the body. It is regulated by various factors, including hormones, and is stimulated primarily in response to low oxygen levels in the blood.
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Erythropoietin
Erythropoietin (EPO) is a glycoprotein hormone produced mainly by the kidneys in response to hypoxia (low oxygen levels). It stimulates the bone marrow to increase the production of red blood cells, thereby enhancing the oxygen-carrying capacity of the blood. EPO is essential for the regulation of erythropoiesis and is often used therapeutically in conditions like anemia.
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Hormonal Regulation
Hormonal regulation refers to the control of physiological processes through hormones, which are chemical messengers released into the bloodstream. In the context of erythropoiesis, hormones like erythropoietin play a vital role in signaling the body to produce more red blood cells when needed. Understanding this regulation is key to grasping how the body maintains homeostasis in response to varying oxygen demands.
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Related Practice
Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The main function of erythrocytes is to transport oxygen on the protein hemoglobin.
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Textbook Question
Erythrocytes are derived from stem cells called____, circulate in the blood for approximately _______ days, and are destroyed by an organ called the _______.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Hemoglobin forms oxyhemoglobin when it binds to oxygen.
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Textbook Question
Anemia is defined as:
a. A decreased oxygen-carrying capacity of the blood.
b. A decreased iron content of the blood.
c. Decreased bone marrow function.
d. Abnormalities in hemoglobin.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Hemoglobin consists of two polypeptide chains bound to a heme group.
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