front 1 Which of the following does not have an endocrine function? urinary bladder adipose tissue liver small intestine | back 1 urinary bladder |
front 2 Growth hormone stimulates glucongenesis decreases blood glucose increases lipogenesis has few target cells in the body | back 2 stimulates glucongenesis |
front 3 Eicosanoids are synthesized from cholesterol prostaglandin arachidonic acid amino acids | back 3 arachidonic acid |
front 4 Follicle stimulating hormone is a glycoprotein steroid monoamine oligopeptide | back 4 glycoprotein |
front 5 Parathyroid hormone functions to raise blood calcium levels. True False | back 5 True |
front 6 In which order would blood flow through these structures as it travels from the hypothalamus to the pituitary gland? primary plexus secondary plexus hypophyseal portal veins | back 6 Primary plexus> hypophyseal portal veins> secondary plexus |
front 7 Steroid hormones are derived from cholesterol glycerol amines polypeptides amino acids | back 7 cholesterol |
front 8 Within the infundibulum , the axons from neurons extending into the posterior pituitary are known as the hypothalamo hypophyseal tract primary plexus secondary plexus supraoptic portal system | back 8 hypothalamo hypophyseal tract |
front 9 The type of leukocyte that will migrate in the blood, then move into tissues and become macrophages, which perform phagocytosis. eosinophil basophil monocyte lymphocyte neutrophil | back 9 monocyte |
front 10 During hematopoiesis, the lymphoid line forms lymphocytes only True False | back 10 True |
front 11 What are the characteristics of leukocytes? smaller than erythrocytes have a nucleus have no hemoglobin more numerous than erythrocytes depending on type, may or may not have granules | back 11 have a nucleus, have no hemoglobin , may or may not granules |
front 12 Old erythrocytes are phagocytized in the Liver spleen lung liver and spleen spleen and lung | back 12 liver and spleen |
front 13 One of the unhealthy effects of blood doping is to increase the viscosity of the blood decrease the blood pressure in the arteries decrease the oxygen carrying capacity of the blood increase the carbon dioxide carrying capacity of the blood increase the oxygen carry capacity of the blood | back 13 increase the viscosity of the blood |
front 14 The extrinsic pathway is a clotting system that is initiated by chemicals that come from outside of the body. True False | back 14 True |
front 15 As a platelet forms at an injury site, platelets become activated and their cytosol degranulates as they release chemicals such as ADP and thromboxaneA2 degranulates as they release chemicals such a as fibrinogen and prothrombin becomes granular as they take up chemicals such a as ADP and thromboxaneA2 becomes granular as they take up chemicals such a as fibrinogen and prothrombin | back 15 degranulates as they release chemicals such as ADP and thromboxaneA2 |
front 16 The smallest and most abundant proteins are globulins endocrine hormones albumins fibrinogens prothrombins | back 16 Albumins |
front 17 When trying to diagnose an infection that alters the percentages of leukocytes types found in the blood, it is useful for clinicians to perform? a white blood cell differential count a red blood cell differential count a total count for red and white blood cells blood typing | back 17 a white blood cell differential count |
front 18 The first phase of hemostasis involves blood vessel dilation blood vessel constriction release of procoagulants fibrinolysis | back 18 blood vessel constriction |
front 19 The globulins make up about ______ percent of all plasma proteins. 58 37 4 1 85 | back 19 37% |
front 20 The lifespan of an erythrocyte is about _____ days. 10 30 60 120 360 | back 20 120 |
front 21 The aventricular node (AV node) is located in the floor of the left atrium floor of the right atrium roof of the left ventricle back wall of the right ventricle back wall of the left ventricle | back 21 Floor of the right atrium |
front 22 Around day 21 of development the primitive heart begins to beat. At this stage it contains the four chambers, two atria and two ventricles. True False | back 22 False |
front 23 During the S-T segment, what is occurring within cardiac muscles cells? Sodium is rapidly diffusing out of atrial muscle cells Sodium channels are beginning to open in ventricular cells and calcium is entering through slow channels in atrial cells calcium is entering and potassium is leaving ventricular cells potassium is entering atrial cells and sodium is leaving ventricular cells | back 23 calcium is entering and potassium is leaving ventricular cells |
front 24 Which circuit of the cardiovascular system includes the left ventricle and aorta? pulmonary trunk cardio circuit coronary circuit systemic circuit | back 24 systemic circuit |
front 25 Which of the cardiovascular system's circuits circuits has deoxygenated blood in its arteries? pulmonary circuit visceral circuit coronary circuit systemic circuit | back 25 pulmonary circuit |
front 26 Pectinate muscles are found on the? posterior wall of the right ventricle anterior wall of the right ventricle internal walls of the right and left atria posterior walls of the right and left ventricles external wall of the right atrium | back 26 internal walls of the right and left atria |
front 27 Norepinephrine is considered a positive chronotropic agent because it causes? less calcium to enter the heart cells, which leads to lower risk of heart attack more forceful contractions during each heart rate an increase in the firing rate of SA node cells thyroid hormone to have steadying effect on heart activity heart cell membrane potentials to become more positive during action potentials | back 27 an increase in the firing rate of SA node cells |
front 28 Which pair is located more anteriorly in a heart in normal position? left atrium and left ventricle left atrium and right ventricle right atrium and left atrium right atrium and right ventricle right atrium and left ventricle | back 28 right atrium and right ventricle |
front 29 The term epicardium is another name for the visceral layer of serosal pericardium parietal layer of the serosal pericardium external layer of the fibrous pericardium myocardium mediastinum | back 29 visceral layer of serosal pericardium |
front 30 Which prenatal structure forms the ascending aorta and pulmonary trunk? truncus arteriosus sinus venosus primitive atrium primitve ventricle conus cordis | back 30 truncus arteriosus |
front 31 To initiate a cardiac muscle contraction, calcium bind to calmodulin binds to troponin binds to actin binds to the z-disc binds to tropomyosin | back 31 binds to troponin |
front 32 Parasympathetic innervation influences the heart rate, but generally tends to have no direct effect on the force of contractions. True False | back 32 True |
front 33 Myofibrils in cardiac muscle tissue are arranged in end to end sarcomeres. True False | back 33 True |
front 34 As with action potentials in other types of cells, the repolarization of cardiac muscle cells involves the entrance of calcium through voltage gated channels exit of potassium through voltage gated channels entrance of sodium through voltage gated channels binding of ACh to ACh receptor simultaneous closure of sodium channels and opening of calcium channels | back 34 exit of potassium through voltage gated channels |
front 35 Blood hydrostatic pressure in systemic capillaries is greater than interstitial fluid hydrostatic pressure True False | back 35 True |
front 36 Several esophageal branches emerge off of which of the following vessels? celiac trunk bronchial arteries left gastric arteries superior mesenteric artery | back 36 broncheal arteries |
front 37 Among the advantages of the cerebral arterial circle is the presence of collateral channels of blood flow to the brain should a supply artery become blocked. True False | back 37 True |
front 38 The azygos vein is located on the left side of the vertebrae. True False | back 38 False |
front 39 As a venous pathway moves closer to the heart, the veins get smaller get larger show no change in their lumen size | back 39 get larger |
front 40 The left suprarenal and gonadal veins differ from the right suprarenal and gonadal in how directly they get to the inferior vena cava True False | back 40 True |