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 closes them.

E  pushes against the semilunar valves and opens them.

A  increase the viscosity of the blood.

B  increase the carbon dioxide carrying capacity of the blood.

C  decrease the blood pressure in the arteries.

D  increase the oxygen carrying capacity of the blood.

E  decrease the oxygen carrying capacity of the blood.

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

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

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

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

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

A  None of the choices is correct.

B  Pulmonary semilunar valve

C  Right atrioventricular valve

D  Left atrioventricular valve

E  Aortic semilunar valve

A  increase.

B  decrease.

A  action potentials fire spontaneously.

B  action potentials are initiated by the autonomic nervous system.

C  action potentials always occur at exactly the same frequency.

D  action potentials are stimulated by internal stores of acetylcholine.

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

A  heme

B  calcium

C  iron

D  globin

A  sex.

B  age.

C  altitude.

D  All of the choices are correct.

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

B  increases, and so blood volume is abnormally high.

C  decreases, 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  a

C  b

D  e

E  d

A  a, e, f

B  a, d, e

C  a, b, d

D  a, b, c, e

E  a, b, c

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

B  the donor had type O blood.

C  the wrong blood type was used.

D  the recipient had type AB blood.

A  Prevention

B  Regulation

C  Transportation

D  Protection

A  liver and spleen.

B  liver.

C  spleen and lung.

D  spleen.

E  lung.

A  lack a nucleus and organelles.

B  have lots of inclusion molecules.

C  are actually dead.

D  are not red.

E  can form a rouleau when moving through a capillary.

A  directly, directly

B  indirectly, indirectly

C  indirectly, directly

D  directly, indirectly

A  Basophils and eosinophils

B  Lymphocytes

C  Neutrophils, basophils, eosinophils, and monocytes

D  Neutrophils

E  Lymphocytes and monocytes

A  Presence of papillary muscles in the ventricles

B  Negative pressure inside the ventricles

C  Arrangement of cardiac muscle in the heart wall

D  Absence of oxygenated blood in the atria

E  Presence of skeletal muscle tissue in the heart skeleton

A  FALSE

B  TRUE

A  platelet repellant.

B  platelet attractant.

A  hematopoiesis, 120

B  hemostasis, 120

C  hemostasis, 9

D  hematopoiesis, 9

A  myeloid stem cells.

B  promegakaryocytes.

C  platelets.

D  late erythroblasts.

E  reticulocytes.

A  are only used in the fetal heart.

B  separate the right and left sides of the heart.

C  permit the passage of blood in one direction.

D  stabilize and hold the arteries leaving the heart.

E  direct the conduction impulse through the heart muscle.

A  lymphocyte.

B  neutrophil.

C  eosinophil.

D  monocyte.

E  basophil.

A  FALSE

B  TRUE

A  increase.

B  not change.

C  decrease.

A  potassium moves out through fast voltage-gated channels.

B  sodium moves out through slow voltage-gated channels.

C  potassium comes in through fast voltage-gated channels.

D  calcium comes in through fast voltage-gated channels.

E  calcium moves out through slow voltage-gated channels.

A  leukopenia.

B  hemopoiesis.

C  agglutination.

D  erythroblastosis.

E  leukocytosis.

A  Monocyte

B  Basophil

C  Eosinophil

D  Lymphocyte

E  Neutrophil

A  acidic, proteins

B  basic, glucose

C  basic, proteins

D  acidic, glycogen

E  acidic, glucose

A  c, a, e, b, d, f

B  a, b, c, e, d, f

C  c, a, b, e, d, f

D  c, b, a, d, e, f

E  a, c, d, b, e, f

F  c, a, b, e, d, f

A  2

B  1

C  4

D  None of the choices is correct.

E  Highly variable, depending on the heart beat rate

A  three

B  no

C  two

D  six

E  a highly variable number of

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  All of the choices are correct.

B  slow the heart rate.

C  lubricate membranes of the pericardium.

D  eliminate blood pressure spikes.

E  equalize the pressure in the great vessels.

A  dark red

B  dark blue

C  bright red

D  light blue

A  conus arteriosus.

B  trabeculae carneae.

C  tricuspid valve.

D  tendinous cords.

E  pectinate muscles.

A  f, g, d, c, b, a, e

B  b, a, d, c, f, g, e

C  d, b, a, c, f, g, e

D  c, d, a, b, f, g, 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  collagen with the assistance of von Willebrand factor.

E  prostacyclin with the assistance of thromboxane A2.

A  globulins.

B  albumins.

C  endocrine hormones.

D  prothrombins.

E  fibrinogens.

A  Superior vena cava

B  Pulmonary veins

C  Pulmonary arteries

D  Pulmonary trunk

E  Inferior vena cava

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

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

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

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

A  smallest, prominent nuclei

B  smallest, no nucleus

C  largest, no nucleus

D  largest, prominent nuclei

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  Sodium is rapidly diffusing out of atrial muscle cells.

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

A  Pulmonary circuit

B  Visceral circuit

C  Systemic circuit

D  Coronary circuit

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

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

C  action potentials within the cusps of the valves.

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

A  parietal layer of the serosal pericardium.

B  mediastinum.

C  myocardium.

D  external layer of the fibrous pericardium.

E  visceral layer of the serosal pericardium.

A  b, d, e

B  b, c, e

C  a, c, d

D  a, b, e

E  a, c, e

A  a, b, c, d

B  a, d

C  a, c, d

D  e

E  b, d

A  clotting factors, hormones

B  iron ions, antibodies

C  lipids, heavy metals

D  antibodies, lipids

E  oxygen, clotting proteins

A  45

B  55

C  35

D  25

E  75

A  c, d, g

B  a, b, c, g

C  a, c, d, f

D  c, e, g

E  a, b, c, e, f

A  extrinsic

B  intrinsic

C  common

A  hyperpolarized as potassium enters and calcium exits.

B  depolarized as potassium enters and calcium exits.

C  repolarized as sodium enters and calcium exits.

D  hyperpolarized as sodium and calcium exit.

E  depolarized as potassium exits and calcium enters.

A  Isovolumetric relaxation

B  Ventricular ejection

C  Atrial contraction and ventricular filling

D  Late ventricular diastole

E  Isovolumetric contraction

A  positive inotropic agent.

B  positive chronotropic agent.

C  negative chronotropic agent.

D  negative inotropic agent.

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

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

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

D  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

A  Contraction of the right atrium

B  Contraction of the right ventricle

C  Relaxation of the left atrium

D  Contraction of the left atrium

E  Relaxation of the right ventricle