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 atrioventricular valves and opens them.

C  pushes against the semilunar 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 closes them.

A  decrease the blood pressure in the arteries.

B  increase the carbon dioxide carrying capacity of the blood.

C  increase the oxygen carrying capacity of the blood.

D  decrease the oxygen carrying capacity of the blood.

E  increase the viscosity of the blood.

A  guide the aorta out of the heart.

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

C  connect the top and bottom halves of the heart.

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

E  guide the inferior vena cava into 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  Aortic semilunar valve

B  Left atrioventricular valve

C  None of the choices is correct.

D  Pulmonary semilunar valve

E  Right atrioventricular valve

A  increase.

B  decrease.

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

B  action potentials always occur at exactly the same frequency.

C  action potentials are initiated by the autonomic nervous system.

D  action potentials fire spontaneously.

E  action potentials are stimulated by internal stores of acetylcholine.

A  calcium

B  heme

C  globin

D  iron

A  age.

B  All of the choices are correct.

C  sex.

D  altitude.

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

B  increases, and so blood volume is abnormally high.

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

D  decreases, and so blood volume is abnormally high.

A  Cardiac muscle cell

B  Skeletal muscle cell

A  d

B  c

C  b

D  a

E  e

A  a, d, e

B  a, b, c, e

C  a, b, d

D  a, e, f

E  a, b, c

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

B  the recipient had type AB blood.

C  the donor had type O blood.

D  the wrong blood type was used.

A  Protection

B  Prevention

C  Regulation

D  Transportation

A  spleen and lung.

B  lung.

C  liver.

D  spleen.

E  liver and spleen.

A  can form a rouleau when moving through a capillary.

B  lack a nucleus and organelles.

C  are not red.

D  are actually dead.

E  have lots of inclusion molecules.

A  indirectly, indirectly

B  directly, indirectly

C  indirectly, directly

D  directly, directly

A  Neutrophils

B  Lymphocytes and monocytes

C  Basophils and eosinophils

D  Neutrophils, basophils, eosinophils, and monocytes

E  Lymphocytes

A  Presence of papillary muscles in the ventricles

B  Absence of oxygenated blood in the atria

C  Negative pressure inside the ventricles

D  Arrangement of cardiac muscle in the heart wall

E  Presence of skeletal muscle tissue in the heart skeleton

A  FALSE

B  TRUE

A  platelet repellant.

B  platelet attractant.

A  hemostasis, 9

B  hematopoiesis, 120

C  hematopoiesis, 9

D  hemostasis, 120

A  myeloid stem cells.

B  promegakaryocytes.

C  late erythroblasts.

D  reticulocytes.

E  platelets.

A  direct the conduction impulse through the heart muscle.

B  permit the passage of blood in one direction.

C  separate the right and left sides of the heart.

D  stabilize and hold the arteries leaving the heart.

E  are only used in the fetal heart.

A  monocyte.

B  basophil.

C  neutrophil.

D  eosinophil.

E  lymphocyte.

A  TRUE

B  FALSE

A  decrease.

B  increase.

C  not change.

A  calcium 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  potassium comes in through fast voltage-gated channels.

E  potassium moves out through fast voltage-gated channels.

A  leukocytosis.

B  leukopenia.

C  erythroblastosis.

D  agglutination.

E  hemopoiesis.

A  Monocyte

B  Basophil

C  Eosinophil

D  Lymphocyte

E  Neutrophil

A  acidic, proteins

B  acidic, glucose

C  basic, glucose

D  acidic, glycogen

E  basic, proteins

A  c, b, a, d, e, f

B  c, a, b, e, d, f

C  a, b, c, 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  None of the choices is correct.

B  Highly variable, depending on the heart beat rate

C  1

D  4

E  2

A  a highly variable number of

B  three

C  six

D  two

E  no

A  by a single ventricle in one minute.

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

C  by both ventricles in one minute.

D  by a single ventricle in one hour.

E  by both ventricles in one hour.

A  All of the choices are correct.

B  lubricate membranes of the pericardium.

C  slow the heart rate.

D  eliminate blood pressure spikes.

E  equalize the pressure in the great vessels.

A  dark blue

B  light blue

C  dark red

D  bright red

A  tricuspid valve.

B  pectinate muscles.

C  tendinous cords.

D  conus arteriosus.

E  trabeculae carneae.

A  d, b, a, c, f, g, e

B  c, d, a, f, b, g, e

C  f, g, d, c, b, a, e

D  b, a, d, c, f, g, e

E  c, d, a, b, f, g, e

A  prostacyclin with the assistance of activated factor V.

B  proconvertin with the assistance of factor IX.

C  collagen with the assistance of von Willebrand factor.

D  prostacyclin with the assistance of thromboxane A2.

E  collagen with the assistance of prothrombin.

A  fibrinogens.

B  endocrine hormones.

C  prothrombins.

D  albumins.

E  globulins.

A  Superior vena cava

B  Pulmonary trunk

C  Inferior vena cava

D  Pulmonary veins

E  Pulmonary arteries

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, prominent nuclei

B  smallest, prominent nuclei

C  largest, no nucleus

D  smallest, no nucleus

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

B  Sodium is rapidly diffusing out of atrial muscle cells.

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

D  Calcium is entering and potassium is leaving ventricular cells.

A  Systemic circuit

B  Coronary circuit

C  Pulmonary circuit

D  Visceral circuit

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

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

C  action potentials within the cusps of the valves.

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

A  myocardium.

B  external layer of the fibrous pericardium.

C  visceral layer of the serosal pericardium.

D  mediastinum.

E  parietal layer of the serosal pericardium.

A  b, d, e

B  a, c, e

C  a, c, d

D  b, c, e

E  a, b, e

A  a, c, d

B  b, d

C  e

D  a, d

E  a, b, c, d

A  iron ions, antibodies

B  lipids, heavy metals

C  oxygen, clotting proteins

D  antibodies, lipids

E  clotting factors, hormones

A  35

B  55

C  75

D  45

E  25

A  a, b, c, e, f

B  c, d, g

C  c, e, g

D  a, c, d, f

E  a, b, c, g

A  common

B  intrinsic

C  extrinsic

A  depolarized as potassium exits and calcium enters.

B  hyperpolarized as potassium enters and calcium exits.

C  hyperpolarized as sodium and calcium exit.

D  repolarized as sodium enters and calcium exits.

E  depolarized as potassium enters and calcium exits.

A  Ventricular ejection

B  Isovolumetric contraction

C  Late ventricular diastole

D  Atrial contraction and ventricular filling

E  Isovolumetric relaxation

A  positive chronotropic agent.

B  positive inotropic agent.

C  negative 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 many mitochondria and a rich supply of myoglobin.

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 right atrium

E  Contraction of the left atrium