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  pushes against the atrioventricular valves and opens them.

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

E  pushes against the semilunar valves and opens them.

A  decrease 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 oxygen carrying capacity of the blood.

E  increase the carbon dioxide carrying capacity of the blood.

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

B  connect the top and bottom halves of the heart.

C  guide the aorta out of the heart.

D  guide the inferior vena cava into the right atrium.

E  shunt blood from the right atrium to the left 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  Aortic semilunar valve

B  None of the choices is correct.

C  Right atrioventricular valve

D  Pulmonary semilunar valve

E  Left atrioventricular valve

A  increase.

B  decrease.

A  action potentials fire spontaneously.

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

C  action potentials always occur at exactly the same frequency.

D  action potentials are stimulated by internal stores of acetylcholine.

E  action potentials are initiated by the autonomic nervous system.

A  globin

B  calcium

C  iron

D  heme

A  altitude.

B  sex.

C  All of the choices are correct.

D  age.

A  increases, and so blood volume is abnormally high.

B  decreases, 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  Skeletal muscle cell

B  Cardiac muscle cell

A  b

B  c

C  a

D  d

E  e

A  a, b, c, e

B  a, d, e

C  a, e, f

D  a, b, c

E  a, b, d

A  the recipient had type AB blood.

B  the donor had type O blood.

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

D  the wrong blood type was used.

A  Protection

B  Regulation

C  Transportation

D  Prevention

A  spleen.

B  liver and spleen.

C  liver.

D  lung.

E  spleen and lung.

A  are actually dead.

B  are not red.

C  have lots of inclusion molecules.

D  lack a nucleus and organelles.

E  can form a rouleau when moving through a capillary.

A  indirectly, directly

B  directly, directly

C  indirectly, indirectly

D  directly, indirectly

A  Basophils and eosinophils

B  Neutrophils, basophils, eosinophils, and monocytes

C  Neutrophils

D  Lymphocytes

E  Lymphocytes and monocytes

A  Presence of skeletal muscle tissue in the heart skeleton

B  Arrangement of cardiac muscle in the heart wall

C  Absence of oxygenated blood in the atria

D  Presence of papillary muscles in the ventricles

E  Negative pressure inside the ventricles

A  FALSE

B  TRUE

A  platelet repellant.

B  platelet attractant.

A  hemostasis, 120

B  hematopoiesis, 120

C  hematopoiesis, 9

D  hemostasis, 9

A  late erythroblasts.

B  promegakaryocytes.

C  reticulocytes.

D  myeloid stem cells.

E  platelets.

A  separate the right and left sides of the heart.

B  stabilize and hold the arteries leaving the heart.

C  are only used in the fetal heart.

D  direct the conduction impulse through the heart muscle.

E  permit the passage of blood in one direction.

A  monocyte.

B  eosinophil.

C  basophil.

D  lymphocyte.

E  neutrophil.

A  TRUE

B  FALSE

A  decrease.

B  increase.

C  not change.

A  potassium comes in through fast voltage-gated channels.

B  calcium moves out through slow voltage-gated channels.

C  sodium moves out through slow voltage-gated channels.

D  calcium comes in through fast voltage-gated channels.

E  potassium moves out through fast voltage-gated channels.

A  leukocytosis.

B  erythroblastosis.

C  hemopoiesis.

D  agglutination.

E  leukopenia.

A  Basophil

B  Monocyte

C  Neutrophil

D  Eosinophil

E  Lymphocyte

A  basic, proteins

B  basic, glucose

C  acidic, glucose

D  acidic, glycogen

E  acidic, proteins

A  c, a, e, b, d, f

B  a, b, c, e, d, f

C  c, b, a, d, e, f

D  c, a, b, e, d, f

E  c, a, b, e, d, f

F  a, c, d, b, e, f

A  Highly variable, depending on the heart beat rate

B  1

C  None of the choices is correct.

D  2

E  4

A  a highly variable number of

B  three

C  two

D  no

E  six

A  by a single ventricle in one hour.

B  by a single ventricle in one minute.

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

D  by both ventricles in one hour.

E  by both ventricles in one minute.

A  eliminate blood pressure spikes.

B  equalize the pressure in the great vessels.

C  slow the heart rate.

D  All of the choices are correct.

E  lubricate membranes of the pericardium.

A  light blue

B  dark blue

C  bright red

D  dark red

A  pectinate muscles.

B  trabeculae carneae.

C  tricuspid valve.

D  tendinous cords.

E  conus arteriosus.

A  c, d, a, b, f, g, e

B  b, a, d, c, f, g, e

C  d, b, a, c, f, g, e

D  f, g, d, c, b, a, e

E  c, d, a, f, b, g, e

A  proconvertin with the assistance of factor IX.

B  prostacyclin with the assistance of activated factor V.

C  collagen with the assistance of prothrombin.

D  prostacyclin with the assistance of thromboxane A2.

E  collagen with the assistance of von Willebrand factor.

A  endocrine hormones.

B  globulins.

C  albumins.

D  fibrinogens.

E  prothrombins.

A  Pulmonary arteries

B  Inferior vena cava

C  Pulmonary trunk

D  Superior vena cava

E  Pulmonary veins

A  increasing of the heart rate above 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 parasympathetic stimulation.

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

A  largest, no nucleus

B  smallest, prominent nuclei

C  smallest, no nucleus

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  Sodium is rapidly diffusing out of atrial muscle cells.

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

D  Calcium is entering and potassium is leaving ventricular cells.

A  Visceral circuit

B  Coronary circuit

C  Systemic circuit

D  Pulmonary circuit

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

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

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

D  action potentials within the cusps of the valves.

A  visceral layer of the serosal pericardium.

B  myocardium.

C  mediastinum.

D  external layer of the fibrous pericardium.

E  parietal layer of the serosal pericardium.

A  a, c, d

B  a, c, e

C  b, d, e

D  b, c, e

E  a, b, e

A  a, d

B  a, c, d

C  e

D  a, b, c, d

E  b, d

A  oxygen, clotting proteins

B  antibodies, lipids

C  lipids, heavy metals

D  iron ions, antibodies

E  clotting factors, hormones

A  25

B  55

C  75

D  45

E  35

A  c, d, g

B  a, b, c, e, f

C  a, b, c, g

D  c, e, g

E  a, c, d, f

A  intrinsic

B  extrinsic

C  common

A  depolarized as potassium exits and calcium enters.

B  repolarized as sodium enters and calcium exits.

C  depolarized as potassium enters and calcium exits.

D  hyperpolarized as sodium and calcium exit.

E  hyperpolarized as potassium enters and calcium exits.

A  Ventricular ejection

B  Late ventricular diastole

C  Isovolumetric contraction

D  Isovolumetric relaxation

E  Atrial contraction and ventricular filling

A  positive inotropic agent.

B  negative chronotropic agent.

C  positive chronotropic agent.

D  negative inotropic agent.

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

B  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

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

A  Contraction of the right atrium

B  Relaxation of the left atrium

C  Contraction of the left atrium

D  Relaxation of the right ventricle

E  Contraction of the right ventricle