Lecture Exam 1

A  pushes against the semilunar 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  fills the cusps of the semilunar valves, causing them to expand and block the backflow of blood

E  pushes against the atrioventricular valves and opens them.

A  increase the viscosity of the blood.

B  increase the oxygen carrying capacity of the blood.

C  decrease the oxygen carrying capacity of the blood.

D  increase the carbon dioxide carrying capacity of the blood.

E  decrease the blood pressure in the arteries.

A  guide the aorta out of the heart.

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

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

D  guide the inferior vena cava into the right atrium.

E  connect the top and bottom halves of the heart.

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

A  Aortic semilunar valve

B  Right atrioventricular valve

C  Left atrioventricular valve

D  Pulmonary semilunar valve

E  None of the choices is correct.

A  decrease.

B  increase.

A  action potentials fire spontaneously.

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

C  action potentials are stimulated by internal stores of acetylcholine.

D  action potentials are initiated by the autonomic nervous system.

E  action potentials always occur at exactly the same frequency.

A  heme

B  globin

C  calcium

D  iron

A  All of the choices are correct.

B  age.

C  sex.

D  altitude.

A  decreases, and so blood volume is abnormally high.

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

C  increases, and so blood volume is abnormally high.

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

A  Skeletal muscle cell

B  Cardiac muscle cell

A  c

B  e

C  b

D  d

E  a

A  a, b, d

B  a, b, c

C  a, b, c, e

D  a, d, e

E  a, e, f

A  the wrong blood type was used.

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

C  the recipient had type AB blood.

D  the donor had type O blood.

A  Protection

B  Prevention

C  Regulation

D  Transportation

A  liver.

B  liver and spleen.

C  spleen and lung.

D  lung.

E  spleen.

A  lack a nucleus and organelles.

B  are actually dead.

C  can form a rouleau when moving through a capillary.

D  are not red.

E  have lots of inclusion molecules.

A  indirectly, indirectly

B  directly, indirectly

C  directly, directly

D  indirectly, directly

A  Neutrophils

B  Basophils and eosinophils

C  Lymphocytes and monocytes

D  Neutrophils, basophils, eosinophils, and monocytes

E  Lymphocytes

A  Negative pressure inside the ventricles

B  Absence of oxygenated blood in the atria

C  Presence of skeletal muscle tissue in the heart skeleton

D  Presence of papillary muscles in the ventricles

E  Arrangement of cardiac muscle in the heart wall

A  TRUE

B  FALSE

A  platelet attractant.

B  platelet repellant.

A  hematopoiesis, 120

B  hemostasis, 9

C  hematopoiesis, 9

D  hemostasis, 120

A  myeloid stem cells.

B  promegakaryocytes.

C  late erythroblasts.

D  reticulocytes.

E  platelets.

A  separate the right and left sides of the heart.

B  direct the conduction impulse through the heart muscle.

C  stabilize and hold the arteries leaving the heart.

D  are only used in the fetal heart.

E  permit the passage of blood in one direction.

A  basophil.

B  neutrophil.

C  eosinophil.

D  monocyte.

E  lymphocyte.

A  FALSE

B  TRUE

A  increase.

B  decrease.

C  not change.

A  calcium comes in through fast voltage-gated channels.

B  sodium moves out through slow 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  leukopenia.

B  agglutination.

C  erythroblastosis.

D  hemopoiesis.

E  leukocytosis.

A  Monocyte

B  Lymphocyte

C  Eosinophil

D  Basophil

E  Neutrophil

A  acidic, glucose

B  acidic, proteins

C  basic, proteins

D  basic, glucose

E  acidic, glycogen

A  a, b, c, e, d, f

B  c, b, a, d, e, f

C  c, a, b, e, d, f

D  c, a, b, e, d, f

E  a, c, d, b, e, f

F  c, a, e, b, d, f

A  2

B  1

C  None of the choices is correct.

D  Highly variable, depending on the heart beat rate

E  4

A  no

B  a highly variable number of

C  three

D  two

E  six

A  by a single ventricle in one minute.

B  by both ventricles in one hour.

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

D  by both ventricles in one minute.

E  by a single ventricle in one hour.

A  eliminate blood pressure spikes.

B  slow the heart rate.

C  All of the choices are correct.

D  lubricate membranes of the pericardium.

E  equalize the pressure in the great vessels.

A  bright red

B  dark blue

C  light blue

D  dark red

A  trabeculae carneae.

B  tendinous cords.

C  pectinate muscles.

D  conus arteriosus.

E  tricuspid valve.

A  c, d, a, b, f, g, e

B  d, b, a, c, f, g, e

C  c, d, a, f, b, g, e

D  f, g, d, c, b, a, e

E  b, a, d, c, f, g, e

A  collagen with the assistance of prothrombin.

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  prostacyclin with the assistance of activated factor V.

A  globulins.

B  albumins.

C  endocrine hormones.

D  fibrinogens.

E  prothrombins.

A  Pulmonary veins

B  Inferior vena cava

C  Superior vena cava

D  Pulmonary trunk

E  Pulmonary arteries

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

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

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

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

A  smallest, no nucleus

B  largest, prominent nuclei

C  smallest, prominent nuclei

D  largest, no nucleus

A  Sodium is rapidly diffusing out of atrial muscle 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 channels are beginning to open in ventricular cells and calcium is entering through slow channels in atrial cells.

A  Visceral circuit

B  Pulmonary circuit

C  Coronary circuit

D  Systemic circuit

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

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

A  visceral layer of the serosal pericardium.

B  external layer of the fibrous pericardium.

C  myocardium.

D  mediastinum.

E  parietal layer of the serosal pericardium.

A  a, c, d

B  a, b, e

C  b, d, e

D  a, c, e

E  b, c, e

A  b, d

B  e

C  a, b, c, d

D  a, c, d

E  a, d

A  oxygen, clotting proteins

B  iron ions, antibodies

C  clotting factors, hormones

D  lipids, heavy metals

E  antibodies, lipids

A  45

B  35

C  75

D  55

E  25

A  a, b, c, g

B  a, c, d, f

C  a, b, c, e, f

D  c, d, g

E  c, e, g

A  common

B  intrinsic

C  extrinsic

A  hyperpolarized as sodium and calcium exit.

B  repolarized as sodium enters and calcium exits.

C  hyperpolarized as potassium enters and calcium exits.

D  depolarized as potassium enters and calcium exits.

E  depolarized as potassium exits and calcium enters.

A  Atrial contraction and ventricular filling

B  Isovolumetric relaxation

C  Late ventricular diastole

D  Ventricular ejection

E  Isovolumetric contraction

A  positive inotropic agent.

B  positive chronotropic agent.

C  negative chronotropic agent.

D  negative inotropic agent.

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

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

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

D  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

A  Relaxation of the right ventricle

B  Contraction of the right atrium

C  Contraction of the left atrium

D  Contraction of the right ventricle

E  Relaxation of the left atrium