Chapter 6 Flashcards
(199 cards)
Blood
Structures of the blood include erythrocytes, leukocytes, thrombocytes, plasma, and other substances. Blood is a connective tissue whose function is to continuously transport those substances throughout the body.
Lymphatic System
Structures of the lymphatic system include lymphatic vessels, lymph fluid, lymph nodes, lymphoid tissues, and lymphoid organs. The function of the lymphatic system is to provide an immune response that defends the body against bacteria, viruses, parasites, foreign cells, and cancer cells.
Agranulocyte
Category of leukocytes with few or no granules in their cytoplasm. It includes lymphocytes and monocytes.
Albumin
Protein molecule that is produced by the liver and carried in the plasma. Albumin exerts osmotic pressure that keeps water from moving out of the blood into the surrounding tissues.
Band
Immature neutrophil in the red bone marrow that has a nucleus shaped like a curved band.
Basophils
Least common type of leukocyte. It is categorized as a granulocyte because it has many large granules in its cytoplasm. These stain dark blue to purple with an alkaline dye.
Bicarbonate
A negatively charged electrolyte in the plasma. Bicarbonate acts as a buffer to maintain the pH of the blood.
Blood type
Genetic material in erythrocytes that determines a person’s blood type. The ABO blood group includes four different blood types: A, B, AB, and O.
Calcium (Ca++)
A positively charged electrolyte in the plasma. Calcium is also factor IV in the process of blood clotting.
Carboxyhemoglobin
Hemoglobin that binds to and carries carbon monoxide in the blood.
Electrolytes
Molecules in the plasma that have a positive or negative electrical charge.
Eosinophil
A type of leukocyte. It is categorized as a granulocyte because it has many large granules in its cytoplasm. These stain bright pink to red with eosin dye.
Erythrocytes
Red blood cell, a round, somewhat flattened disk with no nucleus. An erythroblast is a very immature form that comes from a stem cell.
A reticulocyte is a slightly immature form that is released into the blood.
Erythropoietin
Hormone secreted by the kidneys if the body experiences blood loss. It increases the speed at which erythrocytes are produced and become mature.
Granulocyte
Category of leukocytes with many large granules in their cytoplasm.
Hematopoiesis
Process by which the formed elements of the blood are produced in the red bone marrow, first as very immature cells and then mature cells that are released into the blood.
Hemoglobin
Red, iron-containing molecule in an erythrocyte. Hemoglobin that binds to and carries oxygen from the lungs to the cells is oxyhemoglobin.
Hemoglobin carries carbon dioxide from the cells back to the lungs
Leukocyte
White blood cells. There are five distinct types: neutrophils, eosinophils, basophils, lymphocytes, and monocytes. Each has a specific role in an allergic response or in an immune response.
Lymphocyte
The smallest leukocyte. It is categorized as an agranulocyte as there are few or no granules in its cytoplasm.
A lymphoblastic is an immature form. Lymphoblasts that mature in the re bone marrow become B lymphocytes. Lymphoblasts that migrate to the thymus become t lymphocytes (T cells). Lymphocytes are also known as lymph’s.
Monocyte
The largest leukocyte. It is categorized as an agranulocyte as there are few or no granules in its cytoplasm. It’s nucleus is shaped like a kidney bean. Monocytes are also known as monos.
Neutrophil
Most common type of leukocyte. It is categorized as a granulocyte because it has many large granules in its cytoplasm, but these granules do not stain when there are exposed to laboratory dye, remaining neutral in color.
Oxyhemoglobin
Hemoglobin that is carrying oxygen
Plasma
Clear, straw-colored liquid portion of the blood that transports erythrocytes leukocytes, and thrombocytes, as well as the nutrients of digested foods and the waste products of metabolism
Red bone marrow
Type of connective tissue where all blood cells are produced