Lecture Exam 1

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

B  pushes against the atrioventricular valves and opens them.

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

D  pushes against the semilunar valves and opens them.

E  pushes against the semilunar valves and closes them.

A  increase the oxygen carrying capacity of the blood.

B  increase the viscosity of the blood.

C  decrease the blood pressure in the arteries.

D  increase the carbon dioxide carrying capacity of the blood.

E  decrease the oxygen carrying capacity of the blood.

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 inferior vena cava into the right atrium.

E  guide the aorta out of the heart.

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 slow voltage-gated calcium channels.

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

A  Right atrioventricular valve

B  Aortic semilunar valve

C  Pulmonary semilunar valve

D  None of the choices is correct.

E  Left atrioventricular valve

A  increase.

B  decrease.

A  action potentials are stimulated by internal stores of acetylcholine.

B  action potentials always occur at exactly the same frequency.

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

D  action potentials fire spontaneously.

E  action potentials are initiated by the autonomic nervous system.

A  heme

B  iron

C  calcium

D  globin

A  sex.

B  altitude.

C  All of the choices are correct.

D  age.

A  increases, and so blood volume is abnormally high.

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

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

D  decreases, and so blood volume is abnormally high.

A  Skeletal muscle cell

B  Cardiac muscle cell

A  c

B  d

C  b

D  e

E  a

A  a, e, f

B  a, b, d

C  a, b, c, e

D  a, d, e

E  a, b, c

A  the recipient had type AB blood.

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

C  the wrong blood type was used.

D  the donor had type O blood.

A  Transportation

B  Regulation

C  Prevention

D  Protection

A  lung.

B  spleen.

C  liver.

D  spleen and lung.

E  liver and spleen.

A  can form a rouleau when moving through a capillary.

B  are actually dead.

C  have lots of inclusion molecules.

D  are not red.

E  lack a nucleus and organelles.

A  indirectly, indirectly

B  indirectly, directly

C  directly, directly

D  directly, indirectly

A  Basophils and eosinophils

B  Neutrophils, basophils, eosinophils, and monocytes

C  Neutrophils

D  Lymphocytes and monocytes

E  Lymphocytes

A  Negative pressure inside the ventricles

B  Presence of papillary muscles in the ventricles

C  Arrangement of cardiac muscle in the heart wall

D  Presence of skeletal muscle tissue in the heart skeleton

E  Absence of oxygenated blood in the atria

A  FALSE

B  TRUE

A  platelet attractant.

B  platelet repellant.

A  hematopoiesis, 9

B  hematopoiesis, 120

C  hemostasis, 120

D  hemostasis, 9

A  reticulocytes.

B  promegakaryocytes.

C  late erythroblasts.

D  myeloid stem cells.

E  platelets.

A  are only used in the fetal heart.

B  stabilize and hold the arteries leaving the heart.

C  permit the passage of blood in one direction.

D  direct the conduction impulse through the heart muscle.

E  separate the right and left sides of the heart.

A  monocyte.

B  basophil.

C  neutrophil.

D  lymphocyte.

E  eosinophil.

A  TRUE

B  FALSE

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  leukopenia.

B  agglutination.

C  leukocytosis.

D  erythroblastosis.

E  hemopoiesis.

A  Basophil

B  Monocyte

C  Lymphocyte

D  Eosinophil

E  Neutrophil

A  basic, proteins

B  acidic, glycogen

C  acidic, glucose

D  basic, glucose

E  acidic, proteins

A  c, b, a, d, e, f

B  a, b, c, e, d, f

C  c, a, b, e, d, f

D  c, a, e, b, d, f

E  c, a, b, e, d, f

F  a, c, d, b, e, f

A  4

B  1

C  None of the choices is correct.

D  Highly variable, depending on the heart beat rate

E  2

A  six

B  three

C  two

D  no

E  a highly variable number of

A  by both ventricles in one hour.

B  by a single ventricle in one hour.

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

D  by a single ventricle in one minute.

E  by both ventricles in one minute.

A  eliminate blood pressure spikes.

B  slow the heart rate.

C  lubricate membranes of the pericardium.

D  equalize the pressure in the great vessels.

E  All of the choices are correct.

A  light blue

B  dark blue

C  dark red

D  bright red

A  pectinate muscles.

B  trabeculae carneae.

C  conus arteriosus.

D  tendinous cords.

E  tricuspid valve.

A  d, b, a, c, f, g, e

B  c, d, a, f, b, g, e

C  b, a, d, c, f, g, e

D  c, d, a, b, f, g, e

E  f, g, d, c, b, a, e

A  proconvertin with the assistance of factor IX.

B  prostacyclin with the assistance of thromboxane A2.

C  prostacyclin with the assistance of activated factor V.

D  collagen with the assistance of prothrombin.

E  collagen with the assistance of von Willebrand factor.

A  endocrine hormones.

B  prothrombins.

C  fibrinogens.

D  globulins.

E  albumins.

A  Pulmonary trunk

B  Pulmonary arteries

C  Pulmonary veins

D  Superior vena cava

E  Inferior vena cava

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

A  smallest, prominent nuclei

B  smallest, no nucleus

C  largest, prominent nuclei

D  largest, no nucleus

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

B  Calcium is entering and potassium is leaving ventricular cells.

C  Sodium is rapidly diffusing out of atrial muscle cells.

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

A  Coronary circuit

B  Pulmonary circuit

C  Systemic circuit

D  Visceral circuit

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

B  action potentials within the cusps of the valves.

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

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

A  external layer of the fibrous pericardium.

B  myocardium.

C  parietal layer of the serosal pericardium.

D  visceral layer of the serosal pericardium.

E  mediastinum.

A  b, c, e

B  b, d, e

C  a, c, d

D  a, c, e

E  a, b, e

A  e

B  a, d

C  b, d

D  a, b, c, d

E  a, c, d

A  clotting factors, hormones

B  lipids, heavy metals

C  oxygen, clotting proteins

D  iron ions, antibodies

E  antibodies, lipids

A  35

B  45

C  75

D  25

E  55

A  a, c, d, f

B  a, b, c, g

C  a, b, c, e, f

D  c, d, g

E  c, e, g

A  intrinsic

B  common

C  extrinsic

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  depolarized as potassium exits and calcium enters.

E  hyperpolarized as sodium and calcium exit.

A  Isovolumetric contraction

B  Isovolumetric relaxation

C  Ventricular ejection

D  Atrial contraction and ventricular filling

E  Late ventricular diastole

A  negative inotropic agent.

B  positive inotropic agent.

C  negative chronotropic agent.

D  positive chronotropic agent.

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

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

C  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

A  Relaxation of the left atrium

B  Contraction of the right ventricle

C  Relaxation of the right ventricle

D  Contraction of the left atrium

E  Contraction of the right atrium