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 opens them.

D  pushes against the semilunar valves and closes them.

E  pushes against the atrioventricular valves and opens them.

A  decrease the blood pressure in the arteries.

B  increase the viscosity of the blood.

C  increase the carbon dioxide carrying capacity of the blood.

D  decrease the oxygen carrying capacity of the blood.

E  increase the oxygen 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  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  Left atrioventricular valve

C  None of the choices is correct.

D  Aortic semilunar valve

E  Pulmonary semilunar valve

A  increase.

B  decrease.

A  action potentials always occur at exactly the same frequency.

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

C  action potentials fire spontaneously.

D  action potentials are stimulated by internal stores of acetylcholine.

E  action potentials are initiated by the autonomic nervous system.

A  heme

B  calcium

C  iron

D  globin

A  All of the choices are correct.

B  age.

C  altitude.

D  sex.

A  decreases, and so blood volume is abnormally high.

B  increases, and so blood volume is abnormally high.

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

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

A  Cardiac muscle cell

B  Skeletal muscle cell

A  c

B  e

C  b

D  d

E  a

A  a, d, e

B  a, b, c, e

C  a, b, c

D  a, b, d

E  a, e, f

A  the wrong blood type was used.

B  the recipient had type AB blood.

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

D  the donor had type O blood.

A  Regulation

B  Prevention

C  Transportation

D  Protection

A  spleen.

B  liver and spleen.

C  liver.

D  lung.

E  spleen and lung.

A  have lots of inclusion molecules.

B  are not red.

C  lack a nucleus and organelles.

D  can form a rouleau when moving through a capillary.

E  are actually dead.

A  directly, indirectly

B  directly, directly

C  indirectly, directly

D  indirectly, indirectly

A  Lymphocytes

B  Neutrophils, basophils, eosinophils, and monocytes

C  Basophils and eosinophils

D  Lymphocytes and monocytes

E  Neutrophils

A  Presence of skeletal muscle tissue in the heart skeleton

B  Absence of oxygenated blood in the atria

C  Negative pressure inside the ventricles

D  Presence of papillary muscles in the ventricles

E  Arrangement of cardiac muscle in the heart wall

A  FALSE

B  TRUE

A  platelet repellant.

B  platelet attractant.

A  hemostasis, 120

B  hematopoiesis, 120

C  hematopoiesis, 9

D  hemostasis, 9

A  platelets.

B  late erythroblasts.

C  promegakaryocytes.

D  reticulocytes.

E  myeloid stem cells.

A  separate the right and left sides of the heart.

B  are only used in the fetal heart.

C  stabilize and hold the arteries leaving the heart.

D  direct the conduction impulse through the heart muscle.

E  permit the passage of blood in one direction.

A  neutrophil.

B  eosinophil.

C  lymphocyte.

D  monocyte.

E  basophil.

A  FALSE

B  TRUE

A  decrease.

B  not change.

C  increase.

A  sodium moves out through slow voltage-gated channels.

B  potassium comes in through fast voltage-gated channels.

C  calcium comes in through fast voltage-gated channels.

D  potassium moves out through fast voltage-gated channels.

E  calcium moves out through slow voltage-gated channels.

A  leukocytosis.

B  erythroblastosis.

C  hemopoiesis.

D  agglutination.

E  leukopenia.

A  Monocyte

B  Neutrophil

C  Basophil

D  Lymphocyte

E  Eosinophil

A  basic, proteins

B  acidic, glycogen

C  acidic, glucose

D  basic, glucose

E  acidic, proteins

A  a, c, d, b, e, f

B  c, a, b, e, d, f

C  c, b, a, d, e, f

D  a, b, c, e, d, f

E  c, a, e, b, d, f

F  c, a, b, e, d, f

A  Highly variable, depending on the heart beat rate

B  1

C  4

D  None of the choices is correct.

E  2

A  two

B  no

C  six

D  a highly variable number of

E  three

A  by both ventricles in one hour.

B  by a single ventricle in one minute.

C  by a single ventricle in one hour.

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

E  by both ventricles in one minute.

A  eliminate blood pressure spikes.

B  equalize the pressure in the great vessels.

C  All of the choices are correct.

D  slow the heart rate.

E  lubricate membranes of the pericardium.

A  bright red

B  light blue

C  dark red

D  dark blue

A  pectinate muscles.

B  trabeculae carneae.

C  tendinous cords.

D  conus arteriosus.

E  tricuspid valve.

A  c, d, a, b, f, g, e

B  d, b, a, c, f, g, e

C  f, g, d, c, b, a, e

D  c, d, a, f, b, g, e

E  b, a, d, c, f, g, 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  prothrombins.

B  endocrine hormones.

C  globulins.

D  albumins.

E  fibrinogens.

A  Inferior vena cava

B  Pulmonary trunk

C  Superior vena cava

D  Pulmonary veins

E  Pulmonary arteries

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

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

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

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

A  largest, prominent nuclei

B  smallest, prominent nuclei

C  smallest, no nucleus

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  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  Visceral circuit

D  Pulmonary circuit

A  action potentials within the cusps of the valves.

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

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  myocardium.

B  parietal layer of the serosal pericardium.

C  visceral layer of the serosal pericardium.

D  external layer of the fibrous pericardium.

E  mediastinum.

A  b, c, e

B  a, c, e

C  b, d, e

D  a, b, e

E  a, c, d

A  a, b, c, d

B  b, d

C  a, d

D  e

E  a, c, d

A  iron ions, antibodies

B  antibodies, lipids

C  oxygen, clotting proteins

D  lipids, heavy metals

E  clotting factors, hormones

A  75

B  25

C  45

D  35

E  55

A  c, d, g

B  a, c, d, f

C  a, b, c, g

D  a, b, c, e, f

E  c, e, g

A  common

B  extrinsic

C  intrinsic

A  hyperpolarized as sodium and calcium exit.

B  depolarized as potassium exits and calcium enters.

C  hyperpolarized as potassium enters and calcium exits.

D  repolarized as sodium enters and calcium exits.

E  depolarized as potassium enters and calcium exits.

A  Atrial contraction and ventricular filling

B  Isovolumetric contraction

C  Late ventricular diastole

D  Ventricular ejection

E  Isovolumetric relaxation

A  positive inotropic agent.

B  positive chronotropic agent.

C  negative inotropic agent.

D  negative chronotropic agent.

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

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

C  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

A  Contraction of the left atrium

B  Contraction of the right atrium

C  Relaxation of the right ventricle

D  Relaxation of the left atrium

E  Contraction of the right ventricle