Lecture Exam 1

A  pushes against the atrioventricular valves and opens them.

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

C  pushes against the semilunar valves and closes them.

D  pushes against the semilunar valves and opens them.

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

A  increase the carbon dioxide carrying capacity of the blood.

B  decrease the blood pressure in the arteries.

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  shunt blood from the right atrium to the left atrium.

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

C  guide the aorta out of the heart.

D  guide the inferior vena cava into the right atrium.

E  connect the top and bottom halves of the heart.

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

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

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

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

A  None of the choices is correct.

B  Aortic semilunar valve

C  Right atrioventricular valve

D  Left atrioventricular valve

E  Pulmonary semilunar valve

A  increase.

B  decrease.

A  action potentials fire spontaneously.

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 are stimulated by internal stores of acetylcholine.

E  action potentials are initiated by the autonomic nervous system.

A  heme

B  calcium

C  globin

D  iron

A  age.

B  sex.

C  All of the choices are correct.

D  altitude.

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

B  increases, and so blood volume is abnormally high.

C  decreases, and so blood volume is abnormally high.

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

A  Skeletal muscle cell

B  Cardiac muscle cell

A  b

B  c

C  d

D  e

E  a

A  a, e, f

B  a, b, d

C  a, b, c, e

D  a, b, c

E  a, d, e

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  Regulation

B  Protection

C  Transportation

D  Prevention

A  liver.

B  spleen.

C  lung.

D  liver and spleen.

E  spleen and lung.

A  are actually dead.

B  are not red.

C  lack a nucleus and organelles.

D  have lots of inclusion molecules.

E  can form a rouleau when moving through a capillary.

A  indirectly, directly

B  directly, directly

C  directly, indirectly

D  indirectly, indirectly

A  Basophils and eosinophils

B  Lymphocytes

C  Lymphocytes and monocytes

D  Neutrophils, basophils, eosinophils, and monocytes

E  Neutrophils

A  Presence of papillary muscles in the ventricles

B  Presence of skeletal muscle tissue in the heart skeleton

C  Negative pressure inside the ventricles

D  Absence of oxygenated blood in the atria

E  Arrangement of cardiac muscle in the heart wall

A  TRUE

B  FALSE

A  platelet attractant.

B  platelet repellant.

A  hemostasis, 9

B  hematopoiesis, 120

C  hematopoiesis, 9

D  hemostasis, 120

A  myeloid stem cells.

B  reticulocytes.

C  promegakaryocytes.

D  platelets.

E  late erythroblasts.

A  permit the passage of blood in one direction.

B  direct the conduction impulse through the heart muscle.

C  separate the right and left sides of the heart.

D  are only used in the fetal heart.

E  stabilize and hold the arteries leaving the heart.

A  neutrophil.

B  basophil.

C  monocyte.

D  lymphocyte.

E  eosinophil.

A  FALSE

B  TRUE

A  increase.

B  decrease.

C  not change.

A  sodium moves out through slow voltage-gated channels.

B  calcium comes in through fast voltage-gated channels.

C  potassium 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  agglutination.

B  hemopoiesis.

C  leukopenia.

D  erythroblastosis.

E  leukocytosis.

A  Eosinophil

B  Neutrophil

C  Lymphocyte

D  Basophil

E  Monocyte

A  acidic, glucose

B  basic, proteins

C  acidic, glycogen

D  acidic, proteins

E  basic, glucose

A  c, a, b, e, d, f

B  c, b, a, d, e, f

C  a, c, d, b, e, f

D  c, a, e, b, d, f

E  c, a, b, e, d, f

F  a, b, c, e, d, f

A  Highly variable, depending on the heart beat rate

B  2

C  None of the choices is correct.

D  1

E  4

A  no

B  six

C  a highly variable number of

D  three

E  two

A  by a single ventricle in one minute.

B  by both ventricles in one hour.

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  equalize the pressure in the great vessels.

C  eliminate blood pressure spikes.

D  lubricate membranes of the pericardium.

E  slow the heart rate.

A  dark blue

B  bright red

C  dark red

D  light blue

A  trabeculae carneae.

B  tricuspid valve.

C  tendinous cords.

D  pectinate muscles.

E  conus arteriosus.

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  f, g, d, c, b, a, e

E  c, d, a, b, f, g, e

A  prostacyclin with the assistance of thromboxane A2.

B  collagen with the assistance of prothrombin.

C  prostacyclin with the assistance of activated factor V.

D  collagen with the assistance of von Willebrand factor.

E  proconvertin with the assistance of factor IX.

A  endocrine hormones.

B  globulins.

C  albumins.

D  fibrinogens.

E  prothrombins.

A  Pulmonary arteries

B  Superior vena cava

C  Pulmonary veins

D  Inferior vena cava

E  Pulmonary trunk

A  decreasing of the heart rate below its inherent rhythm by sympathetic 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  increasing of the heart rate above its inherent rhythm by parasympathetic 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  Potassium is entering atrial cells and sodium is leaving ventricular cells.

D  Sodium is rapidly diffusing out of atrial muscle cells.

A  Visceral circuit

B  Systemic circuit

C  Coronary circuit

D  Pulmonary circuit

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

B  action potentials within the cusps of the valves.

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

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

A  myocardium.

B  mediastinum.

C  parietal layer of the serosal pericardium.

D  visceral layer of the serosal pericardium.

E  external layer of the fibrous pericardium.

A  a, c, d

B  a, b, e

C  a, c, e

D  b, d, e

E  b, c, e

A  e

B  b, d

C  a, d

D  a, b, c, d

E  a, c, d

A  clotting factors, hormones

B  antibodies, lipids

C  lipids, heavy metals

D  iron ions, antibodies

E  oxygen, clotting proteins

A  75

B  35

C  25

D  55

E  45

A  c, e, g

B  a, b, c, e, f

C  a, b, c, g

D  a, c, d, f

E  c, d, g

A  common

B  intrinsic

C  extrinsic

A  depolarized as potassium enters and calcium exits.

B  hyperpolarized as sodium and calcium exit.

C  depolarized as potassium exits and calcium enters.

D  repolarized as sodium enters and calcium exits.

E  hyperpolarized as potassium enters and calcium exits.

A  Atrial contraction and ventricular filling

B  Ventricular ejection

C  Isovolumetric relaxation

D  Isovolumetric contraction

E  Late ventricular diastole

A  positive inotropic agent.

B  negative chronotropic agent.

C  positive 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  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 right ventricle

B  Contraction of the right atrium

C  Contraction of the left atrium

D  Relaxation of the left atrium

E  Contraction of the right ventricle