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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/15%3A_The_Anatomy_and_Physiology_of_Animals/15.06%3A_Hormones/15.6.01%3A_Human_Hormones/15.6.1.12%3A_Hormones_of_the_LiverThis page details the liver's production of key hormones: Insulin-like Growth Factor-1 (IGF-1), angiotensinogen, thrombopoietin (TPO), hepcidin, and betatrophin. IGF-1, important for cell growth, peak...This page details the liver's production of key hormones: Insulin-like Growth Factor-1 (IGF-1), angiotensinogen, thrombopoietin (TPO), hepcidin, and betatrophin. IGF-1, important for cell growth, peaks during puberty, while angiotensinogen is vital for blood pressure regulation. TPO regulates platelet production by stimulating bone marrow megakaryocytes. These hormones are essential for growth, maintaining blood pressure, and facilitating blood clotting.
- https://bio.libretexts.org/Courses/Skyline_College/BIOL_130%3A_Human_Biology/11%3A_Cardiovascular_System/11.05%3A_BloodBlood is a fluid connective tissue that circulates throughout the body through blood vessels of the cardiovascular system. What makes blood so special that it features in widespread myths? Although bl...Blood is a fluid connective tissue that circulates throughout the body through blood vessels of the cardiovascular system. What makes blood so special that it features in widespread myths? Although blood accounts for less than 10 percent of human body weight, it is quite literally the elixir of life. As blood travels through the vessels of the cardiovascular system, it delivers vital substances such as nutrients and oxygen to all of the cells and carries away their metabolic wastes.
- https://bio.libretexts.org/Courses/Mansfield_University_of_Pennsylvania/BSC_3271%3A_Microbiology_for_Health_Sciences_Sp21_(Kagle)/14%3A_Immunology/14.01%3A_Innate_Nonspecific_Host_Defenses/14.1.03%3A_Cellular_DefensesThe formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune respons...The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis. Granulocytes are leukocytes characterized by a lobed nucleus and granules in the cytoplasm. These include neutrophils (PMNs), eosinophils, and basophils.
- https://bio.libretexts.org/Courses/Minnesota_State_Community_and_Technical_College/Biology_of_Human_Concerns_(Daniels)/05%3A_Cardiovascular_System/5.05%3A_BloodBlood is a fluid connective tissue that circulates throughout the body through blood vessels of the cardiovascular system. What makes blood so special that it features in widespread myths? Although bl...Blood is a fluid connective tissue that circulates throughout the body through blood vessels of the cardiovascular system. What makes blood so special that it features in widespread myths? Although blood accounts for less than 10 percent of human body weight, it is quite literally the elixir of life. As blood travels through the vessels of the cardiovascular system, it delivers vital substances such as nutrients and oxygen to all of the cells and carries away their metabolic wastes.
- https://bio.libretexts.org/Courses/New_England_College/Microbiology_with_NEC/12%3A_Innate_Nonspecific_Host_Defenses/12.03%3A_Second_Line_Defenses-_Cells_and_FluidsThe formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune respons...The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis. Granulocytes are leukocytes characterized by a lobed nucleus and granules in the cytoplasm. These include neutrophils (PMNs), eosinophils, and basophils.
- https://bio.libretexts.org/Courses/North_Central_State_College/BIOL_1550%3A_Microbiology_(2025)/21%3A_Innate_Immunity_II/21.02%3A_Cellular_Defenses_-_GranulocytesThe formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune respons...The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis. Granulocytes are leukocytes characterized by a lobed nucleus and granules in the cytoplasm. These include neutrophils (PMNs), eosinophils, and basophils.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/15%3A_The_Anatomy_and_Physiology_of_Animals/15.03%3A_Circulatory_Systems/15.3E%3A_BloodThis page describes blood as a liquid tissue composed of red blood cells, white blood cells, platelets, and plasma, primarily involved in oxygen transport and infection defense. It discusses the types...This page describes blood as a liquid tissue composed of red blood cells, white blood cells, platelets, and plasma, primarily involved in oxygen transport and infection defense. It discusses the types of blood cells and their functions, the importance of serum lipid levels for cardiac health, and the risks associated with different cholesterol levels. Safety protocols for blood donations in the U.S.
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Microbiology_OER_-_Ying_Liu/22%3A_Innate_Immunity_II/22.02%3A_Cellular_Defenses_-_GranulocytesThe formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune respons...The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis. Granulocytes are leukocytes characterized by a lobed nucleus and granules in the cytoplasm. These include neutrophils (PMNs), eosinophils, and basophils.
- https://bio.libretexts.org/Courses/Clinton_College/BIO_403%3A_Microbiology_(Neely)/06%3A_The_Immune_System_Nonspecific_and_Specific_Defenses/6.02%3A_Innate_Nonspecific_Host_Defenses/6.2.03%3A_Cellular_DefensesThe formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune respons...The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis. Granulocytes are leukocytes characterized by a lobed nucleus and granules in the cytoplasm. These include neutrophils (PMNs), eosinophils, and basophils.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_(Boundless)/40%3A_The_Circulatory_System/40.07%3A_Components_of_the_Blood_-_Platelets_and_Coagulation_FactorsPlatelets and coagulation factors are instrumental in plugging damaged blood vessel walls and stopping blood loss.
- https://bio.libretexts.org/Bookshelves/Microbiology/Microbiology_(OpenStax)/17%3A_Innate_Nonspecific_Host_Defenses/17.03%3A_Cellular_DefensesThe formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune respons...The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis. Granulocytes are leukocytes characterized by a lobed nucleus and granules in the cytoplasm. These include neutrophils (PMNs), eosinophils, and basophils.
