Lecture Exam 1

A  fills the cusps of the atrioventricular valve causing opening of the bicuspid and closure of the tricuspid.

B  fills the cusps of the semilunar valves, causing them to expand and block the backflow of blood

C  pushes against the semilunar valves and closes them.

D  pushes against the atrioventricular valves and opens them.

E  pushes against the semilunar valves and opens them.

A  increase the carbon dioxide carrying capacity of the blood.

B  decrease the oxygen carrying capacity of the blood.

C  increase the viscosity of the blood.

D  decrease the blood pressure in the arteries.

E  increase the oxygen carrying capacity of the blood.

A  shunt blood from the right atrium to the left atrium.

B  take blood from the coronary circulation to the right atrium.

C  guide the inferior vena cava into the right atrium.

D  connect the top and bottom halves of the heart.

E  guide the aorta out of the heart.

A  fast voltage-gated sodium channels and fast voltage-gated calcium channels.

B  slow voltage-gated sodium channels and fast voltage-gated calcium channels.

C  slow voltage-gated sodium channels and slow voltage-gated calcium channels.

D  fast voltage-gated sodium channels and slow voltage-gated calcium channels.

A  Aortic semilunar valve

B  Left atrioventricular valve

C  None of the choices is correct.

D  Pulmonary semilunar valve

E  Right atrioventricular valve

A  decrease.

B  increase.

A  action potentials always occur at exactly the same frequency.

B  action potentials are initiated by the autonomic nervous system.

C  action potentials are stimulated by internal stores of acetylcholine.

D  all filaments contract and relax with a high degree of synchrony.

E  action potentials fire spontaneously.

A  heme

B  iron

C  globin

D  calcium

A  altitude.

B  sex.

C  All of the choices are correct.

D  age.

A  increases, and so blood volume is abnormally high.

B  decreases, and so blood volume is abnormally high.

C  increases, and there is fluid retention in the interstitial space.

D  decreases, and there is fluid retention in the interstitial space.

A  Cardiac muscle cell

B  Skeletal muscle cell

A  b

B  a

C  c

D  d

E  e

A  a, b, c, e

B  a, d, e

C  a, b, d

D  a, e, f

E  a, b, c

A  the recipient had type AB blood.

B  the wrong blood type was used.

C  the donor had type O blood.

D  there were no agglutinins (antibodies) in the recipient blood.

A  Prevention

B  Regulation

C  Transportation

D  Protection

A  spleen.

B  liver and spleen.

C  liver.

D  spleen and lung.

E  lung.

A  are not red.

B  lack a nucleus and organelles.

C  have lots of inclusion molecules.

D  are actually dead.

E  can form a rouleau when moving through a capillary.

A  indirectly, indirectly

B  directly, indirectly

C  directly, directly

D  indirectly, directly

A  Neutrophils, basophils, eosinophils, and monocytes

B  Basophils and eosinophils

C  Lymphocytes

D  Neutrophils

E  Lymphocytes and monocytes

A  Arrangement of cardiac muscle in the heart wall

B  Negative pressure inside the ventricles

C  Presence of skeletal muscle tissue in the heart skeleton

D  Presence of papillary muscles in the ventricles

E  Absence of oxygenated blood in the atria

A  FALSE

B  TRUE

A  platelet repellant.

B  platelet attractant.

A  hematopoiesis, 120

B  hematopoiesis, 9

C  hemostasis, 9

D  hemostasis, 120

A  late erythroblasts.

B  promegakaryocytes.

C  platelets.

D  reticulocytes.

E  myeloid stem cells.

A  direct the conduction impulse through the heart muscle.

B  separate the right and left sides of the heart.

C  are only used in the fetal heart.

D  permit the passage of blood in one direction.

E  stabilize and hold the arteries leaving the heart.

A  neutrophil.

B  eosinophil.

C  lymphocyte.

D  basophil.

E  monocyte.

A  TRUE

B  FALSE

A  not change.

B  decrease.

C  increase.

A  potassium moves out through fast voltage-gated channels.

B  sodium moves out through slow voltage-gated channels.

C  potassium comes in through fast voltage-gated channels.

D  calcium comes in through fast voltage-gated channels.

E  calcium moves out through slow voltage-gated channels.

A  erythroblastosis.

B  leukocytosis.

C  hemopoiesis.

D  leukopenia.

E  agglutination.

A  Eosinophil

B  Lymphocyte

C  Neutrophil

D  Basophil

E  Monocyte

A  basic, proteins

B  acidic, glycogen

C  acidic, proteins

D  acidic, glucose

E  basic, glucose

A  c, a, e, b, d, f

B  c, a, b, e, d, f

C  a, c, d, b, e, f

D  a, b, c, e, d, f

E  c, b, a, d, e, f

F  c, a, b, e, d, f

A  4

B  Highly variable, depending on the heart beat rate

C  2

D  None of the choices is correct.

E  1

A  two

B  three

C  a highly variable number of

D  six

E  no

A  by a single ventricle in one hour.

B  by both ventricles in one hour.

C  by a single ventricle in one minute.

D  by both ventricles in one minute.

E  by the left ventricle into the aorta in one beat.

A  slow the heart rate.

B  eliminate blood pressure spikes.

C  equalize the pressure in the great vessels.

D  lubricate membranes of the pericardium.

E  All of the choices are correct.

A  bright red

B  dark blue

C  dark red

D  light blue

A  tricuspid valve.

B  conus arteriosus.

C  tendinous cords.

D  pectinate muscles.

E  trabeculae carneae.

A  d, b, a, c, f, g, e

B  c, d, a, f, b, g, e

C  c, d, a, b, f, g, e

D  b, a, d, c, f, g, e

E  f, g, d, c, b, a, e

A  collagen with the assistance of von Willebrand factor.

B  prostacyclin with the assistance of thromboxane A2.

C  proconvertin with the assistance of factor IX.

D  prostacyclin with the assistance of activated factor V.

E  collagen with the assistance of prothrombin.

A  globulins.

B  endocrine hormones.

C  albumins.

D  fibrinogens.

E  prothrombins.

A  Superior vena cava

B  Pulmonary trunk

C  Pulmonary veins

D  Pulmonary arteries

E  Inferior vena cava

A  decreasing of the heart rate below its inherent rhythm by sympathetic stimulation.

B  increasing of the heart rate above its inherent rhythm by sympathetic stimulation.

C  increasing of the heart rate above its inherent rhythm by parasympathetic stimulation.

D  decreasing of the heart rate below its inherent rhythm by parasympathetic stimulation.

A  largest, no nucleus

B  largest, prominent nuclei

C  smallest, prominent nuclei

D  smallest, no nucleus

A  Calcium is entering and potassium is leaving ventricular cells.

B  Sodium channels are beginning to open in ventricular cells and calcium is entering through slow channels in atrial cells.

C  Potassium is entering atrial cells and sodium is leaving ventricular cells.

D  Sodium is rapidly diffusing out of atrial muscle cells.

A  Coronary circuit

B  Visceral circuit

C  Pulmonary circuit

D  Systemic circuit

A  contraction and relaxation of papillary muscles that pull on heart strings.

B  contraction of the smooth muscle in the walls of the great vessels leaving the heart.

C  action potentials within the cusps of the valves.

D  pressure changes of alternating contraction and relaxation during the cardiac cycle.

A  external layer of the fibrous pericardium.

B  parietal layer of the serosal pericardium.

C  myocardium.

D  mediastinum.

E  visceral layer of the serosal pericardium.

A  a, c, e

B  b, d, e

C  b, c, e

D  a, b, e

E  a, c, d

A  a, b, c, d

B  a, c, d

C  b, d

D  e

E  a, d

A  antibodies, lipids

B  lipids, heavy metals

C  clotting factors, hormones

D  iron ions, antibodies

E  oxygen, clotting proteins

A  25

B  45

C  55

D  75

E  35

A  a, c, d, f

B  a, b, c, e, f

C  c, d, g

D  c, e, g

E  a, b, c, g

A  intrinsic

B  extrinsic

C  common

A  repolarized as sodium enters and calcium exits.

B  depolarized as potassium enters and calcium exits.

C  hyperpolarized as potassium enters and calcium exits.

D  hyperpolarized as sodium and calcium exit.

E  depolarized as potassium exits and calcium enters.

A  Isovolumetric relaxation

B  Late ventricular diastole

C  Atrial contraction and ventricular filling

D  Isovolumetric contraction

E  Ventricular ejection

A  positive chronotropic agent.

B  negative chronotropic agent.

C  negative inotropic agent.

D  positive inotropic agent.

A  aerobic metabolism using glycolysis of glycogen to meet most ATP demands.

B  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

C  anaerobic metabolism using myoglobin, creatin kinase, and ketone bodies.

D  aerobic metabolism using many mitochondria and a rich supply of myoglobin.

A  Relaxation of the right ventricle

B  Contraction of the right ventricle

C  Contraction of the left atrium

D  Contraction of the right atrium

E  Relaxation of the left atrium