Concept explainers
Introduction:
The two major components of blood are the blood cells and fluid plasma. The blood cells make up about 45% of the blood composition, and the rest of the 55% of the blood is made up of plasma. The blood cells are of three types that are red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).
Answer to Problem 1RAC
The correct answer is option (e) all of these are correct.
Explanation of Solution
Explanation/justification for the correct answer:
Option (e) all of these are correct. Blood functions to maintain osmolarity through ions and electrolytes, protects against foreign substances through immune cells, contains platelets for clot formation and maintains body temperature. So, the correct answer is option (e).
Explanation for incorrect answer:
Option (a) clot formation. Blood contains platelets that are responsible for the formation of a clot that stops bleeding, but that is not the only function of blood. So, this is an incorrect option.
Option (b) protection against foreign substances. Blood contains white blood cells and immune cells that function to protect the body against infections and maintains immunity, but that is not the only function of blood. So, this is an incorrect answer.
Option (c) maintenance of body temperature. The blood maintains body temperature by the transport of hormones that helps to regulate body temperature through vasoconstriction and vasodilatation, but that is not the only function of blood. So, this is an incorrect answer.
Option (d) regulation of pH and osmosis. Blood helps to maintain pH and osmolarity by providing the ions that balance the pH and water-electrolyte balance in the body, but that is not the only function of blood. So, this is an incorrect answer.
The blood helps to maintain pH and osmolarity; it helps in protection, maintenance of body temperature, and helps in clot formation. Hence, the correct answer is option (e) all of these are correct.
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Chapter 19 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
- Extracellular fluid in the human body is composed of (select all that apply) a. Lymph B. Interstitial fluid C. Blood plasma D. Cytoplasm E. Cerebrospinal fluidarrow_forwardWhich type of cell releases anti-inflammatory substances in allergic reactions? O A. Basophil O B. Eosinophil OC. Neutrophil D. Monocytearrow_forwardWhich Which of the following statements describe encircled structures a. It stimulates the neighboring cells to secrete PTH b. It has abundant number of RER, SER, and lysosome c. It has abundant mitochondria d. It is activated by low calcium serum e. It decreases as the individual agedarrow_forward
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- Plasma is the ________. a. fibers in blood b. matrix of blood c. cell that phagocytizes bacteria d. cell fragment found in the tissuearrow_forwardMatch the following with its function: v plasma protein that creates osmotic pressure that prevents fluids from leaking out of blood vessels (prevents edema) albumin A. fibrinogen В. plasma protein that helps cause blood clotting c. platelets Formed element that causes blood clotting. white blood cells D. Formed element important in the immune system. red blood cells Е. formed element that carries oxygen hemoglobin F. protein that binds to oxygen > >arrow_forwardThe following statements about blood are true EXCEPT that _____. a. It contains dissolved gases b. The pH is slightly acidic c. It contains about 55 percent plasma d. The viscosity is five times greater than water.arrow_forward
Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning