Describe hematopoiesis - Study guides, Class notes & Summaries

HEMATOLOGY TEST BANK 2023/2024 A patient with a hematologic disorder asks the nurse how the body forms blood cells. The nurse should describe a process that takes place where? A) In the spleen B) In the kidneys C) In the bone marrow D) In the liver - CORRECT ANSWER-Ans: C Feedback: Bone marrow is the primary site for hematopoiesis. The liver and spleen may be involved during embryonic development or when marrow is destroyed. The kidneys release erythropoietin, which stimulates the ...

HESI A2 VERSION 3 ANATOMY AND PHYSIOLOGY 2023-2024 QUESTIONS AND ANSWERS 1. Anatomic position The body is erect, the feet are slightly apart, the head is held high, and the palms of the hands are facing forward 2. Which of the following is a structure found in the upper respiratory? Pharynx 3. A person who has damage to their ulnar nerve will have decreases sensation in Arm 4. Which bone dose not articulate with any other bone? Hyoid 5. Which of the following statements best describe endo...

What is a hormone and how does it act? Hormones are chemical messengers that are responsible for regulation. They are secreted into body fluids, mainly blood. It has specific actions on target tissues, which are any tissue that has specific receptors for that particular hormone. What is a paracrine gland? a secretion that enters interstitial fluid but affects only neighboring cells What is an autocrine gland? A secretion that only affects the secreting cell. What is an en...

Hematology Board Exam Questions & Answers 2024/2025 What is the first type of cell produced by the developing embryo? - ANSWERSErythrocyte What percentage of tissue located in the bone marrow cavities of adults is fat? - ANSWERS50% Not characteristic of pluripotent hematopoietic stem cells? - ANSWERSExpress the stem cell marker CD13 In an adult, what are the two best areas for obtaining active bone marrow by aspiration? - ANSWERSPosterior iliac crest and sternum What is the norm...

Examples of pathogens that cause human disease include: a. bacteria b. viruses c. fungi d. parasites (protozoans and worms) e. All of the above - e. All of the above Which of the following is not associated with mucosal surfaces? a. mucus-secreting goblet cells b. lysozyme c. M cells d. beating cilia e. white pulp - e. white pulp One reason that pathogenic microorganisms have an advantage in the host they infect is because they: a. have previously been encountered th...

Define stem cells. - ANSWER Ability to regenerate or "self-renew" Ability to differentiate into all diverse cell types Describe hematopoiesis. - ANSWER Formation and development of blood cells What cell type gives rise to all blood cells? - ANSWER Hematopoietic stem cell (HSC) Why is the study of hematopoiesis difficult? - ANSWER Because there is roughly 1 HSC per 50,000 cells in bone marrow, HSC function decreases with age, "Lin" markers found on mature cells Undifferentiated cells l...

MCMP 422 EXAM 1 Questions and Answers 100% Correct A bacterium that causes a common disease in a population that has been previously exposed to it is called _____. A. opportunistic B. Resistant C. Endemic D. Attenuated E. Commensal - Answer- C. Endemic A term generally used to describe all white blood cells is _____. A. hematopoietic cells B. myeloid progenitor C. dendritic cells D. monocytes E. leukocytes - Answer- E. leukocytes All of the following are examples of chemical barri...

What is the first type of cell produced by the developing embryo? - Erythrocyte What percentage of tissue located in the bone marrow cavities of adults is fat? - 50% Which of the following is not characteristic of pluripotent hematopoietic stem cells? - Express the stem marker CD13 In an adult, what are the two best areas for obtaining active bone marrow by aspiration? - Posterior iliac crest, sternum What is the normal ratio of myeloid to erythroid precursors in bone marrow (M:E ratio)?...

What is the first type of cell produced by the developing embryo? Erythrocyte What percentage of tissue located in the bone marrow cavities of adults is fat? 50% Not characteristic of pluripotent hematopoietic stem cells? Express the stem cell marker CD13 In an adult, what are the two best areas for obtaining active bone marrow by aspiration? Posterior iliac crest and sternum What is the normal ratio of myeloid to erythroid precursors in bone marrow? 4:1 D...

MLS Hematology Exam| 263 QUESTIONS| WITH COMPLETE SOLUTIONS What is the first type of cell produced by the developing embryo? Erythrocyte What percentage of tissue located in the bone marrow cavities of adults is fat? 50% Which of the following is not characteristic of pluripotent hematopoietic stem cells? Express the stem marker CD13 In an adult, what are the two best areas for obtaining active bone marrow by aspiration? Posterior iliac crest, sternum What is the normal ratio of myel...

What is the first type of cell produced by the developing embryo? A. Erythrocyte B. Granulocyte C. Lymphocyte D. Thrombocyte - A. Erythrocyte The need for oxygen delivery to developing tissues results in the production of erythrocytes before other blood cells. Erythropoiesis commences in the yolk sac as early as the fourteenth day of embryonic development. These primitive red cells produce embryonic hemoglobins that temporarily serve oxygen needs of the fetus. Myelopoietic and lymphopoie...