Lecture Exam 1

A  pushes against the atrioventricular valves and opens them.

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

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

D  pushes against the semilunar valves and closes them.

E  pushes against the semilunar valves and opens them.

A  increase the oxygen carrying capacity of the blood.

B  decrease the oxygen carrying capacity of the blood.

C  decrease the blood pressure in the arteries.

D  increase the viscosity of the blood.

E  increase the carbon dioxide carrying capacity of the blood.

A  guide the inferior vena cava into the right atrium.

B  connect the top and bottom halves of the heart.

C  guide the aorta out of the heart.

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

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

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

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

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

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

A  Pulmonary semilunar valve

B  Right atrioventricular valve

C  Aortic semilunar valve

D  Left atrioventricular valve

E  None of the choices is correct.

A  decrease.

B  increase.

A  action potentials are initiated by the autonomic nervous system.

B  action potentials always occur at exactly the same frequency.

C  action potentials fire spontaneously.

D  action potentials are stimulated by internal stores of acetylcholine.

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

A  globin

B  heme

C  calcium

D  iron

A  altitude.

B  sex.

C  age.

D  All of the choices are correct.

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

B  decreases, and so blood volume is abnormally high.

C  increases, and so blood volume is abnormally high.

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

A  Cardiac muscle cell

B  Skeletal muscle cell

A  c

B  d

C  a

D  e

E  b

A  a, b, c, e

B  a, b, c

C  a, e, f

D  a, b, d

E  a, d, e

A  the donor had type O blood.

B  the recipient had type AB blood.

C  the wrong blood type was used.

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

A  Prevention

B  Regulation

C  Transportation

D  Protection

A  spleen and lung.

B  lung.

C  liver.

D  spleen.

E  liver and spleen.

A  can form a rouleau when moving through a capillary.

B  are not red.

C  lack a nucleus and organelles.

D  have lots of inclusion molecules.

E  are actually dead.

A  directly, directly

B  indirectly, indirectly

C  directly, indirectly

D  indirectly, directly

A  Neutrophils, basophils, eosinophils, and monocytes

B  Basophils and eosinophils

C  Lymphocytes

D  Lymphocytes and monocytes

E  Neutrophils

A  Presence of papillary muscles in the ventricles

B  Presence of skeletal muscle tissue in the heart skeleton

C  Arrangement of cardiac muscle in the heart wall

D  Absence of oxygenated blood in the atria

E  Negative pressure inside the ventricles

A  FALSE

B  TRUE

A  platelet attractant.

B  platelet repellant.

A  hemostasis, 120

B  hematopoiesis, 9

C  hemostasis, 9

D  hematopoiesis, 120

A  platelets.

B  promegakaryocytes.

C  myeloid stem cells.

D  late erythroblasts.

E  reticulocytes.

A  stabilize and hold the arteries leaving the heart.

B  permit the passage of blood in one direction.

C  separate the right and left sides of the heart.

D  direct the conduction impulse through the heart muscle.

E  are only used in the fetal heart.

A  neutrophil.

B  monocyte.

C  eosinophil.

D  basophil.

E  lymphocyte.

A  FALSE

B  TRUE

A  increase.

B  decrease.

C  not change.

A  potassium comes in through fast voltage-gated channels.

B  calcium comes in through fast voltage-gated channels.

C  potassium moves out through fast voltage-gated channels.

D  calcium moves out through slow voltage-gated channels.

E  sodium moves out through slow voltage-gated channels.

A  erythroblastosis.

B  agglutination.

C  leukocytosis.

D  hemopoiesis.

E  leukopenia.

A  Neutrophil

B  Monocyte

C  Basophil

D  Lymphocyte

E  Eosinophil

A  acidic, proteins

B  basic, glucose

C  acidic, glucose

D  basic, proteins

E  acidic, glycogen

A  c, a, e, b, d, f

B  c, b, a, d, e, f

C  a, c, d, b, e, f

D  c, a, b, e, d, f

E  c, a, b, e, d, f

F  a, b, c, e, d, f

A  1

B  4

C  None of the choices is correct.

D  2

E  Highly variable, depending on the heart beat rate

A  two

B  three

C  no

D  a highly variable number of

E  six

A  by both ventricles in one hour.

B  by both ventricles in one minute.

C  by a single ventricle in one minute.

D  by a single ventricle in one hour.

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

A  slow the heart rate.

B  lubricate membranes of the pericardium.

C  All of the choices are correct.

D  eliminate blood pressure spikes.

E  equalize the pressure in the great vessels.

A  dark red

B  bright red

C  dark blue

D  light blue

A  conus arteriosus.

B  trabeculae carneae.

C  tricuspid valve.

D  pectinate muscles.

E  tendinous cords.

A  f, g, d, c, b, a, e

B  b, a, d, c, f, g, e

C  c, d, a, f, b, g, e

D  c, d, a, b, f, g, e

E  d, b, a, c, f, g, e

A  prostacyclin with the assistance of thromboxane A2.

B  collagen with the assistance of prothrombin.

C  proconvertin with the assistance of factor IX.

D  collagen with the assistance of von Willebrand factor.

E  prostacyclin with the assistance of activated factor V.

A  endocrine hormones.

B  fibrinogens.

C  prothrombins.

D  albumins.

E  globulins.

A  Superior vena cava

B  Inferior vena cava

C  Pulmonary trunk

D  Pulmonary veins

E  Pulmonary arteries

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

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

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

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

A  smallest, prominent nuclei

B  smallest, no nucleus

C  largest, prominent nuclei

D  largest, no nucleus

A  Potassium is entering atrial cells and sodium 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  Calcium is entering and potassium is leaving ventricular cells.

D  Sodium is rapidly diffusing out of atrial muscle cells.

A  Systemic circuit

B  Coronary circuit

C  Pulmonary circuit

D  Visceral circuit

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

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

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  myocardium.

C  parietal layer of the serosal pericardium.

D  mediastinum.

E  visceral layer of the serosal pericardium.

A  a, c, d

B  b, d, e

C  a, b, e

D  a, c, e

E  b, c, e

A  a, d

B  a, c, d

C  b, d

D  e

E  a, b, c, d

A  lipids, heavy metals

B  clotting factors, hormones

C  antibodies, lipids

D  iron ions, antibodies

E  oxygen, clotting proteins

A  75

B  25

C  45

D  55

E  35

A  c, e, g

B  c, d, g

C  a, c, d, f

D  a, b, c, g

E  a, b, c, e, f

A  common

B  extrinsic

C  intrinsic

A  hyperpolarized as sodium and calcium exit.

B  depolarized as potassium enters and calcium exits.

C  hyperpolarized as potassium enters and calcium exits.

D  depolarized as potassium exits and calcium enters.

E  repolarized as sodium enters and calcium exits.

A  Ventricular ejection

B  Isovolumetric relaxation

C  Late ventricular diastole

D  Isovolumetric contraction

E  Atrial contraction and ventricular filling

A  negative inotropic agent.

B  positive chronotropic agent.

C  positive inotropic agent.

D  negative chronotropic agent.

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

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

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

D  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

A  Contraction of the left atrium

B  Relaxation of the right ventricle

C  Relaxation of the left atrium

D  Contraction of the right atrium

E  Contraction of the right ventricle