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 closes them.

D  pushes against the semilunar valves and opens them.

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

A  increase the oxygen carrying capacity of the blood.

B  increase the viscosity of the blood.

C  decrease the oxygen carrying capacity of the blood.

D  decrease the blood pressure in the arteries.

E  increase the carbon dioxide carrying capacity of the blood.

A  connect the top and bottom halves of the heart.

B  guide the inferior vena cava into the right atrium.

C  guide the aorta out of the heart.

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

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

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

B  fast 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  Right atrioventricular valve

B  Aortic semilunar valve

C  Left atrioventricular valve

D  None of the choices is correct.

E  Pulmonary semilunar valve

A  increase.

B  decrease.

A  action potentials always occur at exactly the same frequency.

B  action potentials fire spontaneously.

C  action potentials are initiated by the autonomic nervous system.

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

E  action potentials are stimulated by internal stores of acetylcholine.

A  calcium

B  globin

C  heme

D  iron

A  age.

B  All of the choices are correct.

C  altitude.

D  sex.

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

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

C  increases, and so blood volume is abnormally high.

D  decreases, and so blood volume is abnormally high.

A  Skeletal muscle cell

B  Cardiac muscle cell

A  a

B  c

C  b

D  e

E  d

A  a, b, c, e

B  a, d, e

C  a, b, c

D  a, b, d

E  a, e, f

A  the donor had type O blood.

B  the wrong blood type was used.

C  the recipient had type AB blood.

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

A  Regulation

B  Prevention

C  Transportation

D  Protection

A  lung.

B  liver.

C  liver and spleen.

D  spleen.

E  spleen and lung.

A  have lots of inclusion molecules.

B  are actually dead.

C  can form a rouleau when moving through a capillary.

D  are not red.

E  lack a nucleus and organelles.

A  indirectly, indirectly

B  directly, indirectly

C  indirectly, directly

D  directly, directly

A  Lymphocytes

B  Basophils and eosinophils

C  Neutrophils, basophils, eosinophils, and monocytes

D  Lymphocytes and monocytes

E  Neutrophils

A  Presence of skeletal muscle tissue in the heart skeleton

B  Presence of papillary muscles in the ventricles

C  Absence of oxygenated blood in the atria

D  Arrangement of cardiac muscle in the heart wall

E  Negative pressure inside the ventricles

A  TRUE

B  FALSE

A  platelet repellant.

B  platelet attractant.

A  hemostasis, 9

B  hematopoiesis, 9

C  hemostasis, 120

D  hematopoiesis, 120

A  myeloid stem cells.

B  late erythroblasts.

C  reticulocytes.

D  promegakaryocytes.

E  platelets.

A  stabilize and hold the arteries leaving the heart.

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  permit the passage of blood in one direction.

A  basophil.

B  lymphocyte.

C  monocyte.

D  neutrophil.

E  eosinophil.

A  FALSE

B  TRUE

A  increase.

B  not change.

C  decrease.

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  calcium moves out through slow voltage-gated channels.

E  potassium moves out through fast voltage-gated channels.

A  leukopenia.

B  hemopoiesis.

C  erythroblastosis.

D  leukocytosis.

E  agglutination.

A  Basophil

B  Neutrophil

C  Lymphocyte

D  Eosinophil

E  Monocyte

A  acidic, proteins

B  basic, proteins

C  acidic, glycogen

D  acidic, glucose

E  basic, glucose

A  a, c, d, b, e, f

B  c, a, b, e, d, f

C  c, a, b, e, d, f

D  a, b, c, e, d, f

E  c, b, a, d, e, f

F  c, a, e, b, d, f

A  1

B  Highly variable, depending on the heart beat rate

C  2

D  None of the choices is correct.

E  4

A  a highly variable number of

B  three

C  no

D  six

E  two

A  by both ventricles in one minute.

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 a single ventricle in one hour.

A  lubricate membranes of the pericardium.

B  slow the heart rate.

C  All of the choices are correct.

D  equalize the pressure in the great vessels.

E  eliminate blood pressure spikes.

A  light blue

B  bright red

C  dark red

D  dark blue

A  trabeculae carneae.

B  tricuspid valve.

C  tendinous cords.

D  conus arteriosus.

E  pectinate muscles.

A  c, d, a, f, b, g, e

B  c, d, a, b, f, g, e

C  f, g, d, c, b, a, e

D  d, b, a, c, f, g, e

E  b, a, d, c, f, g, e

A  prostacyclin with the assistance of activated factor V.

B  collagen with the assistance of prothrombin.

C  prostacyclin with the assistance of thromboxane A2.

D  collagen with the assistance of von Willebrand factor.

E  proconvertin with the assistance of factor IX.

A  prothrombins.

B  endocrine hormones.

C  globulins.

D  fibrinogens.

E  albumins.

A  Pulmonary veins

B  Inferior vena cava

C  Superior vena cava

D  Pulmonary arteries

E  Pulmonary trunk

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, no nucleus

B  smallest, prominent nuclei

C  largest, prominent nuclei

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  Calcium is entering and potassium is leaving ventricular cells.

D  Sodium is rapidly diffusing out of atrial muscle cells.

A  Coronary circuit

B  Visceral circuit

C  Systemic circuit

D  Pulmonary 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  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  external layer of the fibrous pericardium.

C  parietal layer of the serosal pericardium.

D  myocardium.

E  mediastinum.

A  b, d, e

B  a, b, e

C  b, c, e

D  a, c, d

E  a, c, e

A  b, d

B  a, b, c, d

C  a, d

D  e

E  a, c, d

A  clotting factors, hormones

B  antibodies, lipids

C  iron ions, antibodies

D  oxygen, clotting proteins

E  lipids, heavy metals

A  45

B  25

C  55

D  35

E  75

A  a, c, d, f

B  c, d, g

C  c, e, g

D  a, b, c, g

E  a, b, c, e, f

A  common

B  intrinsic

C  extrinsic

A  repolarized as sodium enters and calcium exits.

B  depolarized as potassium enters and calcium exits.

C  hyperpolarized as sodium and calcium exit.

D  depolarized as potassium exits and calcium enters.

E  hyperpolarized as potassium enters and calcium exits.

A  Isovolumetric relaxation

B  Late ventricular diastole

C  Ventricular ejection

D  Isovolumetric contraction

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

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

D  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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