A&P II FINAL EXAM STUDY LATEST UPDATED 2022 RATED A

A&P II FINAL EXAM STUDY LATEST UPDATED 2022 RATED A Virtually all of the protein or amino acid-based hormones exert their effects through intracellular __________. a. ions b. deactivators c. second messengers d. n ...

A&P II FINAL EXAM STUDY LATEST UPDATED 2022 RATED A Virtually all of the protein or amino acid-based hormones exert their effects through intracellular __________. a. ions b. deactivators c. second messengers d. nucleotides Correct Answer-c. second messengers Chemical Substances secreted by cells into the extracellular fluids that regulate the metabolic function of other cells in the body are called ___________. a. proteins b. antibodies c. hormones d. enzymes Correct Answer-c. hormones The master gland of the endocrine system is the_________.a. endocrine b. pituitary c. adrenal d. thyroid Correct Answer-b. pituitary The secretion of hormones in response to changing blood levels of ions is known as _____. a. neural stimulus b. hormonal stimulus c. humoral stimulus d. ionic stimulus Correct Answer-c. humoral stimulus The hormone that has the greatest effect on the metabolic rate is _____________. a. growth hormone b. aldosterone c. thyroid d. cortisol Correct Answer-c. thyroidWhen blood glucose levels fall, the pancreas releases ________. a. insulin b. melatonin c. glucose d. glucagon Correct Answer-d. glucagon When parathyroid hormone is released a. blood calcium levels fall b. osteoclasts are activated c. calcitonin is inhibited d. calcium channels are blocked Correct Answer-b. osteoclasts are activated The cells with the most receptors for growth hormones are a. liver b. nervesc. bones d. blood vessels Correct Answer-c. bones Steroid hormones influence other cells by a. activating cyclic AMP b. entering the nucleus of the cell and altering the expression of the gene c. binding specific receptors and activating G proteins d. stimulating the uptake of glucose Correct Answer-b. entering the nucleus of the cell and altering the expression of the gene The major plasma protein is a. thrombin b. albumin c. fibrin d. fibrinogen Correct Answer-b. albumin This type of leukocyte produces antibodiesa. neutrophil b. eosinophil c. monocyte d. lymphocyte Correct Answer-d. lymphocyte Which of the following is not a phase of erythropoiesis a. synthesis of hemoglobin b. production of vacuoles c. ejection of the erythrocyte nucleus d. production of ribosomes Correct Answer-b. production of vacuoles Red blood cells contain ___% hemoglobin a. 50 b. 82 c. 97 d. 100 Correct Answer-c. 97Which of the following is not a function of blood a. controlling endocrine glands b. transporting oxygen c. distributing heat d. producing antibodies Correct Answer-a. controlling endocrine glands What organ in the body regulates erythropoeisis? a. brain b. kidney c. pancreas d. liver Correct Answer-b. kidney Which of the following is not a phase of hemostasis? a. vascular spasm b. fibrinolysisc. coagulation d. platelet plug formation Correct Answer-b. fibrinolysis The first phase of erythrocyte production is a. hemoglobin synthesis b. ejection of the nucleus c. ribosome synthesis d. reticulocyte formation Correct Answer-c. ribosome synthesis All blood cells develop from a. hemocytoblasts b. ejection of the nucleus c. myeloid stem cells d. lymphoid stem cells Correct Answer-a. hemocytoblasts Which of the following cells could develop from a lymphoid stem cell?a. lymphocyte b. erythrocyte c. monocyte d. any blood cell Correct Answer-a. lymphocyte The life span of a red blood cell is about a. 4 days b. 4 weeks c. 4 months d. 4 years Correct Answer-c. 4 months After hemoglobin is broken down, what part of it enters the liver and becomes bile, which helps us digest food? a. globin b. bilirubin c. heme d. ferritin Correct Answer-b. bilirubinWhich of the following structural characteristics contribute to the function of red blood cells a. bi-concave shape b. they contain mostly hemoglobin c. spectrin in their plasma membrane d. all of the above Correct Answer-d. all of the above If the vagal nerves to the heart were cut, the result would be that ________. a. the AV node would become the pacemaker of the heart b. the heart rate would increase c. parasympathetic stimulation would increase, causing a decrease in heart rate d. the heart would stop, since the vagal nerves trigger the heart to contract Correct Answer-b. the heart rate would increase the critical factor controlling stroke volume is a. preloadb. afterload c. contractility d. sympathetic stimulation Correct Answer-a. preload Isovolumetric contraction ________. a. occurs only in people with heart valve defects b. occurs while the AV valves are open c. occurs immediately after the aortic and pulmonary valves close d. refers to the short period during ventricular systole when the ventricles are completely closed chambers Correct Answer-d. refers to the short period during ventricular systole when the ventricles are completely closed chambers