Lecture Exam 1

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

B  pushes against the semilunar valves and closes them.

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 opens them.

E  pushes against the atrioventricular 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 oxygen carrying capacity of the blood.

D  increase the viscosity of the blood.

E  decrease the blood pressure in the arteries.

A  connect the top and bottom halves of the heart.

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

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

D  guide the aorta out of the heart.

E  guide the inferior vena cava into the right atrium.

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

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

C  fast 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  increase.

B  decrease.

A  action potentials are initiated by the autonomic nervous system.

B  action potentials are stimulated by internal stores of acetylcholine.

C  action potentials always occur at exactly the same frequency.

D  action potentials fire spontaneously.

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

A  iron

B  globin

C  calcium

D  heme

A  sex.

B  age.

C  All of the choices are correct.

D  altitude.

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

B  increases, and so blood volume is abnormally high.

C  decreases, and so blood volume is abnormally high.

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

A  Skeletal muscle cell

B  Cardiac muscle cell

A  b

B  d

C  a

D  e

E  c

A  a, b, c

B  a, b, d

C  a, e, f

D  a, d, e

E  a, b, c, e

A  the recipient had type AB blood.

B  the donor had type O blood.

C  the wrong blood type was used.

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

A  Prevention

B  Protection

C  Transportation

D  Regulation

A  liver and spleen.

B  liver.

C  lung.

D  spleen.

E  spleen and lung.

A  can form a rouleau when moving through a capillary.

B  lack a nucleus and organelles.

C  are not red.

D  have lots of inclusion molecules.

E  are actually dead.

A  indirectly, directly

B  directly, directly

C  indirectly, indirectly

D  directly, indirectly

A  Neutrophils, basophils, eosinophils, and monocytes

B  Basophils and eosinophils

C  Neutrophils

D  Lymphocytes and monocytes

E  Lymphocytes

A  Presence of papillary muscles in the ventricles

B  Absence of oxygenated blood in the atria

C  Arrangement of cardiac muscle in the heart wall

D  Presence of skeletal muscle tissue in the heart skeleton

E  Negative pressure inside the ventricles

A  FALSE

B  TRUE

A  platelet attractant.

B  platelet repellant.

A  hematopoiesis, 9

B  hemostasis, 9

C  hemostasis, 120

D  hematopoiesis, 120

A  reticulocytes.

B  promegakaryocytes.

C  platelets.

D  myeloid stem cells.

E  late erythroblasts.

A  are only used in the fetal heart.

B  stabilize and hold the arteries leaving the heart.

C  separate the right and left sides of the heart.

D  permit the passage of blood in one direction.

E  direct the conduction impulse through the heart muscle.

A  monocyte.

B  basophil.

C  eosinophil.

D  neutrophil.

E  lymphocyte.

A  TRUE

B  FALSE

A  decrease.

B  not change.

C  increase.

A  potassium moves out through fast voltage-gated channels.

B  potassium comes in through fast voltage-gated channels.

C  calcium comes in through fast voltage-gated channels.

D  sodium moves out through slow voltage-gated channels.

E  calcium moves out through slow voltage-gated channels.

A  leukopenia.

B  erythroblastosis.

C  agglutination.

D  hemopoiesis.

E  leukocytosis.

A  Monocyte

B  Basophil

C  Eosinophil

D  Neutrophil

E  Lymphocyte

A  basic, glucose

B  acidic, glucose

C  acidic, proteins

D  acidic, glycogen

E  basic, proteins

A  a, b, c, e, d, f

B  c, a, b, e, d, f

C  a, c, d, b, e, f

D  c, b, a, d, e, f

E  c, a, e, b, d, f

F  c, a, b, 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  no

C  three

D  six

E  a highly variable number of

A  by a single ventricle in one hour.

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

C  by a single ventricle in one minute.

D  by both ventricles in one minute.

E  by both ventricles in one hour.

A  equalize the pressure in the great vessels.

B  eliminate blood pressure spikes.

C  lubricate membranes of the pericardium.

D  All of the choices are correct.

E  slow the heart rate.

A  dark blue

B  dark red

C  bright red

D  light blue

A  tendinous cords.

B  tricuspid valve.

C  trabeculae carneae.

D  conus arteriosus.

E  pectinate muscles.

A  c, d, a, b, f, g, e

B  d, b, a, c, f, g, e

C  c, d, a, f, b, g, e

D  f, g, d, c, b, a, e

E  b, a, d, c, f, g, e

A  proconvertin with the assistance of factor IX.

B  collagen with the assistance of von Willebrand factor.

C  prostacyclin with the assistance of thromboxane A2.

D  prostacyclin with the assistance of activated factor V.

E  collagen with the assistance of prothrombin.

A  prothrombins.

B  globulins.

C  fibrinogens.

D  endocrine hormones.

E  albumins.

A  Pulmonary veins

B  Pulmonary trunk

C  Pulmonary arteries

D  Superior vena cava

E  Inferior vena cava

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

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

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

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

A  smallest, no nucleus

B  largest, no nucleus

C  smallest, prominent nuclei

D  largest, prominent nuclei

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

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

C  Sodium is rapidly diffusing out of atrial muscle cells.

D  Calcium is entering and potassium is leaving ventricular cells.

A  Systemic circuit

B  Coronary circuit

C  Pulmonary circuit

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

D  action potentials within the cusps of the valves.

A  parietal layer of the serosal pericardium.

B  myocardium.

C  mediastinum.

D  external layer of the fibrous pericardium.

E  visceral layer of the serosal pericardium.

A  b, c, e

B  a, b, e

C  a, c, d

D  a, c, e

E  b, d, e

A  e

B  b, d

C  a, d

D  a, c, d

E  a, b, c, d

A  oxygen, clotting proteins

B  antibodies, lipids

C  clotting factors, hormones

D  lipids, heavy metals

E  iron ions, antibodies

A  35

B  75

C  45

D  55

E  25

A  c, e, g

B  a, b, c, e, f

C  a, c, d, f

D  c, d, g

E  a, b, c, g

A  extrinsic

B  common

C  intrinsic

A  depolarized as potassium exits and calcium enters.

B  depolarized as potassium enters and calcium exits.

C  hyperpolarized as potassium enters and calcium exits.

D  hyperpolarized as sodium and calcium exit.

E  repolarized as sodium enters and calcium exits.

A  Ventricular ejection

B  Isovolumetric relaxation

C  Late ventricular diastole

D  Atrial contraction and ventricular filling

E  Isovolumetric contraction

A  positive chronotropic agent.

B  positive inotropic agent.

C  negative chronotropic agent.

D  negative inotropic agent.

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

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

C  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

A  Relaxation of the right ventricle

B  Relaxation of the left atrium

C  Contraction of the left atrium

D  Contraction of the right ventricle

E  Contraction of the right atrium