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 oxygen carrying capacity of the blood.

B  decrease the blood pressure in the arteries.

C  decrease the oxygen carrying capacity of the blood.

D  increase the viscosity of the blood.

E  increase the carbon dioxide carrying capacity of the blood.

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

B  guide the aorta out of the heart.

C  guide the inferior vena cava into the right atrium.

D  connect the top and bottom halves of the heart.

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

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

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

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

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

A  None of the choices is correct.

B  Left atrioventricular valve

C  Pulmonary semilunar valve

D  Aortic semilunar valve

E  Right atrioventricular valve

A  decrease.

B  increase.

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

B  action potentials are initiated by the autonomic nervous system.

C  action potentials always occur at exactly the same frequency.

D  action potentials fire spontaneously.

E  action potentials are stimulated by internal stores of acetylcholine.

A  iron

B  calcium

C  globin

D  heme

A  sex.

B  All of the choices are correct.

C  age.

D  altitude.

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

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

C  increases, and so blood volume is abnormally high.

D  decreases, and so blood volume is abnormally high.

A  Cardiac muscle cell

B  Skeletal muscle cell

A  c

B  b

C  a

D  e

E  d

A  a, b, d

B  a, d, e

C  a, b, c

D  a, e, f

E  a, b, c, e

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

B  the recipient had type AB blood.

C  the wrong blood type was used.

D  the donor had type O blood.

A  Transportation

B  Protection

C  Regulation

D  Prevention

A  liver.

B  spleen and lung.

C  spleen.

D  lung.

E  liver and spleen.

A  can form a rouleau when moving through a capillary.

B  lack a nucleus and organelles.

C  have lots of inclusion molecules.

D  are not red.

E  are actually dead.

A  indirectly, directly

B  indirectly, indirectly

C  directly, directly

D  directly, indirectly

A  Lymphocytes and monocytes

B  Neutrophils, basophils, eosinophils, and monocytes

C  Basophils and eosinophils

D  Neutrophils

E  Lymphocytes

A  Negative pressure inside the ventricles

B  Absence of oxygenated blood in the atria

C  Presence of skeletal muscle tissue in the heart skeleton

D  Presence of papillary muscles in the ventricles

E  Arrangement of cardiac muscle in the heart wall

A  TRUE

B  FALSE

A  platelet attractant.

B  platelet repellant.

A  hemostasis, 120

B  hemostasis, 9

C  hematopoiesis, 120

D  hematopoiesis, 9

A  late erythroblasts.

B  myeloid stem cells.

C  reticulocytes.

D  platelets.

E  promegakaryocytes.

A  direct the conduction impulse through the heart muscle.

B  separate the right and left sides of the heart.

C  stabilize and hold the arteries leaving the heart.

D  permit the passage of blood in one direction.

E  are only used in the fetal heart.

A  monocyte.

B  eosinophil.

C  neutrophil.

D  lymphocyte.

E  basophil.

A  FALSE

B  TRUE

A  decrease.

B  not change.

C  increase.

A  calcium comes in through fast voltage-gated channels.

B  sodium moves out through slow voltage-gated channels.

C  calcium moves out through slow voltage-gated channels.

D  potassium comes in through fast voltage-gated channels.

E  potassium moves out through fast voltage-gated channels.

A  leukocytosis.

B  hemopoiesis.

C  leukopenia.

D  agglutination.

E  erythroblastosis.

A  Basophil

B  Monocyte

C  Eosinophil

D  Lymphocyte

E  Neutrophil

A  acidic, glycogen

B  basic, glucose

C  basic, proteins

D  acidic, proteins

E  acidic, glucose

A  c, b, a, d, e, f

B  c, a, e, b, d, f

C  c, a, b, e, d, f

D  c, a, b, e, d, f

E  a, b, c, e, d, f

F  a, c, d, b, e, f

A  1

B  4

C  Highly variable, depending on the heart beat rate

D  2

E  None of the choices is correct.

A  no

B  six

C  a highly variable number of

D  three

E  two

A  by a single ventricle in one hour.

B  by both ventricles in one minute.

C  by both ventricles in one hour.

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

E  by a single ventricle in one minute.

A  All of the choices are correct.

B  lubricate membranes of the pericardium.

C  eliminate blood pressure spikes.

D  slow the heart rate.

E  equalize the pressure in the great vessels.

A  dark red

B  dark blue

C  light blue

D  bright red

A  conus arteriosus.

B  tricuspid valve.

C  pectinate muscles.

D  tendinous cords.

E  trabeculae carneae.

A  f, g, d, c, b, a, e

B  b, a, d, c, f, g, e

C  c, d, a, b, f, g, e

D  d, b, a, c, f, g, e

E  c, d, a, f, b, g, e

A  collagen with the assistance of von Willebrand factor.

B  proconvertin with the assistance of factor IX.

C  collagen with the assistance of prothrombin.

D  prostacyclin with the assistance of activated factor V.

E  prostacyclin with the assistance of thromboxane A2.

A  prothrombins.

B  fibrinogens.

C  globulins.

D  endocrine hormones.

E  albumins.

A  Pulmonary trunk

B  Inferior vena cava

C  Pulmonary veins

D  Superior vena cava

E  Pulmonary arteries

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

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

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

D  increasing of the heart rate above its inherent rhythm by sympathetic 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  Pulmonary circuit

B  Systemic circuit

C  Coronary circuit

D  Visceral circuit

A  action potentials within the cusps of the valves.

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

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

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

A  external layer of the fibrous pericardium.

B  visceral layer of the serosal pericardium.

C  myocardium.

D  parietal layer of the serosal pericardium.

E  mediastinum.

A  b, d, e

B  b, c, e

C  a, c, e

D  a, b, e

E  a, c, d

A  a, c, d

B  a, b, c, d

C  b, d

D  a, d

E  e

A  oxygen, clotting proteins

B  antibodies, lipids

C  lipids, heavy metals

D  iron ions, antibodies

E  clotting factors, hormones

A  55

B  45

C  25

D  35

E  75

A  c, d, g

B  a, b, c, e, f

C  a, c, d, f

D  a, b, c, g

E  c, e, g

A  intrinsic

B  extrinsic

C  common

A  depolarized as potassium enters and calcium exits.

B  depolarized as potassium exits and calcium enters.

C  repolarized as sodium enters and calcium exits.

D  hyperpolarized as sodium and calcium exit.

E  hyperpolarized as potassium enters and calcium exits.

A  Late ventricular diastole

B  Isovolumetric relaxation

C  Ventricular ejection

D  Isovolumetric contraction

E  Atrial contraction and ventricular filling

A  positive inotropic agent.

B  negative inotropic agent.

C  negative chronotropic agent.

D  positive chronotropic agent.

A  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

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

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

A  Contraction of the right ventricle

B  Relaxation of the right ventricle

C  Contraction of the right atrium

D  Contraction of the left atrium

E  Relaxation of the left atrium