IvyTech APHY 102 Midterm Exam Questions And Answers Verified 100% Correct

IvyTech APHY 102 Midterm Exam Questions And Answers Verified 100% Correct The hormone that stimulates calcium deposition into bone is - ANSWER calcitonin As a result of the allergen-antibody reaction, mast cells release histamine - ANSWER -True The thymus gland secretes hormones called _________________ that _________________. - ANSWER -thymosins; control production and differentiation of white blood cells. Secretions that affect only nearby cells are termed - ANSWER -paracrine Which of the following usually accounts for the smallest percentage of leukocytes in a blood sample? - ANSWER -Basophils Blood from the face and scalp is drained by the - ANSWER -external jugular vein B cells divide and differentiate into _________ which produce and secrete antibodies. - ANSWER -plasma cells Blood flow through a capillary is controlled by a precapillary sphincter, which opens or closes due to the requirements of the cells supplies by the capillary. - ANSWER -True The right atrium receives blood directly from - ANSWER -the superior vena cava, inferior vena cava, coronary sinus The loose-fitting sac around the heart is the - ANSWER -fibrous pericardium A hormone that the adrenal medulla secretes is - ANSWER -epinephrine Which of the following are agranulocytes? - ANSWER -monocytes A hormone is a secreted molecule that is carried in the bloodstream to where it acts on target cells that bear specific receptors for that hormone. - ANSWER -True The normal pacemaker of the heart is the - ANSWER -sinoatrial node The spleen - ANSWER -resembles a large lymph node divided into lobules. In all organisms, the basic unit of structure and function is - ANSWER -the cell Which type of blood vessel holds the greatest volume of blood? - ANSWER -Vein T lymphocytes are responsible for - ANSWER -cell-mediated immunity Persons with type AB blood are sometimes called universal donors. - ANSWER False Anatomy and physiology are difficult to separate because - ANSWER physiological functions depend on anatomical structures. compared to the nervous system, the endocrine system - ANSWER -may have a longer lasting effect A hormone is a _______________ and the target cell is_______________________. - ANSWER -molecule that has a metabolic effect on another cell; a cell that has receptors for specific hormones. In an ECG pattern, the P wave is caused by - ANSWER -depolarization of atrial muscle fibers. The great saphenous vein is the longest vein in the body. - ANSWER -True The type of resistance that is acquired as a result of developing a disease is... - ANSWER -naturally acquired active immunity. Kidneys are part of the lymphatic system - ANSWER -False While looking at a sample of blood in a microscope, you see a cell that is markedly larger than a red blood cell. It has a bi-lobed nucleus and is filled with red granules in the cytoplasm. What type of blood cell is this? - ANSWER -An eosinophil Which of the following characteristics of life and their descriptions is correct? - ANSWER -circulation- the movement of substances in body fluids A primary immune response _____________ , and a secondary immune response __________________. - ANSWER -produces antibodies within five to ten days of exposure to antigens; produces antibodies within a day or two of a subsequent exposure to the same antigen. Which artery is incorrectly matched to its location? - ANSWER -Thyrocervical arteries; Thymus The lymph nodes of the axillary region receive lymph mainly from the - ANSWER -upper limb and mammary gland The basic event in the formation of a blood clot is the change of... - ANSWER fibrinogen to fibrin Drugs used to reduce the tissue rejection reaction following the transplantation of tissue from one person to another - ANSWER -suppress the immune response in the recipient