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 semilunar valves and opens them.

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

D  pushes against the semilunar valves and closes them.

E  pushes against the atrioventricular valves and opens them.

A  increase the oxygen carrying capacity of the blood.

B  increase the carbon dioxide carrying capacity of the blood.

C  decrease the blood pressure in the arteries.

D  decrease the oxygen carrying capacity of the blood.

E  increase the viscosity of the blood.

A  connect the top and bottom halves of the heart.

B  guide the aorta out of the heart.

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

D  guide the inferior vena cava into the right atrium.

E  shunt blood from the right atrium to the left 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  Left atrioventricular valve

B  Aortic semilunar valve

C  Right atrioventricular valve

D  Pulmonary semilunar valve

E  None of the choices is correct.

A  decrease.

B  increase.

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

B  action potentials are stimulated by internal stores of acetylcholine.

C  action potentials always occur at exactly the same frequency.

D  action potentials are initiated by the autonomic nervous system.

E  action potentials fire spontaneously.

A  iron

B  calcium

C  heme

D  globin

A  sex.

B  age.

C  All of the choices are correct.

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  d

B  e

C  c

D  a

E  b

A  a, b, c, e

B  a, d, e

C  a, b, d

D  a, e, f

E  a, b, c

A  the donor had type O blood.

B  the recipient had type AB blood.

C  the wrong blood type was used.

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

A  Prevention

B  Transportation

C  Protection

D  Regulation

A  lung.

B  spleen and lung.

C  liver.

D  spleen.

E  liver and spleen.

A  can form a rouleau when moving through a capillary.

B  are not red.

C  are actually dead.

D  lack a nucleus and organelles.

E  have lots of inclusion molecules.

A  directly, directly

B  indirectly, indirectly

C  directly, indirectly

D  indirectly, directly

A  Neutrophils, basophils, eosinophils, and monocytes

B  Neutrophils

C  Lymphocytes

D  Basophils and eosinophils

E  Lymphocytes and monocytes

A  Arrangement of cardiac muscle in the heart wall

B  Presence of papillary muscles in the ventricles

C  Absence of oxygenated blood in the atria

D  Negative pressure inside the ventricles

E  Presence of skeletal muscle tissue in the heart skeleton

A  TRUE

B  FALSE

A  platelet repellant.

B  platelet attractant.

A  hemostasis, 9

B  hematopoiesis, 120

C  hemostasis, 120

D  hematopoiesis, 9

A  platelets.

B  reticulocytes.

C  promegakaryocytes.

D  myeloid stem cells.

E  late erythroblasts.

A  are only used in the fetal heart.

B  stabilize and hold the arteries leaving the heart.

C  separate the right and left sides of the heart.

D  direct the conduction impulse through the heart muscle.

E  permit the passage of blood in one direction.

A  monocyte.

B  lymphocyte.

C  eosinophil.

D  basophil.

E  neutrophil.

A  TRUE

B  FALSE

A  decrease.

B  increase.

C  not change.

A  calcium moves out through slow voltage-gated channels.

B  potassium comes in through fast voltage-gated channels.

C  calcium comes in through fast voltage-gated channels.

D  potassium moves out through fast voltage-gated channels.

E  sodium moves out through slow voltage-gated channels.

A  agglutination.

B  leukocytosis.

C  hemopoiesis.

D  erythroblastosis.

E  leukopenia.

A  Basophil

B  Lymphocyte

C  Eosinophil

D  Monocyte

E  Neutrophil

A  acidic, glucose

B  acidic, proteins

C  basic, glucose

D  basic, proteins

E  acidic, glycogen

A  a, b, c, e, d, f

B  c, b, a, d, e, f

C  c, a, e, b, d, f

D  c, a, b, e, d, f

E  c, a, b, e, d, f

F  a, c, d, b, e, f

A  4

B  2

C  1

D  None of the choices is correct.

E  Highly variable, depending on the heart beat rate

A  six

B  two

C  a highly variable number of

D  no

E  three

A  by both ventricles in one hour.

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

C  by a single ventricle in one minute.

D  by a single ventricle in one hour.

E  by both ventricles in one minute.

A  lubricate membranes of the pericardium.

B  slow the heart rate.

C  eliminate blood pressure spikes.

D  equalize the pressure in the great vessels.

E  All of the choices are correct.

A  dark red

B  light blue

C  bright red

D  dark blue

A  conus arteriosus.

B  tendinous cords.

C  trabeculae carneae.

D  pectinate muscles.

E  tricuspid valve.

A  b, a, d, c, f, g, e

B  c, d, a, f, b, g, e

C  c, d, a, b, f, g, e

D  d, b, a, c, f, g, e

E  f, g, d, c, b, a, e

A  collagen with the assistance of prothrombin.

B  prostacyclin with the assistance of thromboxane A2.

C  prostacyclin with the assistance of activated factor V.

D  proconvertin with the assistance of factor IX.

E  collagen with the assistance of von Willebrand factor.

A  fibrinogens.

B  prothrombins.

C  globulins.

D  endocrine hormones.

E  albumins.

A  Pulmonary veins

B  Pulmonary trunk

C  Inferior vena cava

D  Pulmonary arteries

E  Superior vena cava

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

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

A  largest, prominent nuclei

B  smallest, prominent nuclei

C  smallest, no nucleus

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  Sodium is rapidly diffusing out of atrial muscle cells.

D  Calcium is entering and potassium is leaving ventricular cells.

A  Coronary circuit

B  Visceral circuit

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

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

A  visceral layer of the serosal pericardium.

B  mediastinum.

C  myocardium.

D  parietal layer of the serosal pericardium.

E  external layer of the fibrous pericardium.

A  a, b, e

B  a, c, d

C  a, c, e

D  b, d, e

E  b, c, e

A  a, d

B  a, b, c, d

C  a, c, d

D  e

E  b, d

A  clotting factors, hormones

B  iron ions, antibodies

C  oxygen, clotting proteins

D  antibodies, lipids

E  lipids, heavy metals

A  45

B  25

C  55

D  75

E  35

A  a, b, c, e, f

B  c, e, g

C  c, d, g

D  a, b, c, g

E  a, c, d, f

A  intrinsic

B  common

C  extrinsic

A  hyperpolarized as potassium enters and calcium exits.

B  hyperpolarized as sodium and calcium exit.

C  repolarized as sodium enters and calcium exits.

D  depolarized as potassium exits and calcium enters.

E  depolarized as potassium enters and calcium exits.

A  Ventricular ejection

B  Isovolumetric relaxation

C  Isovolumetric contraction

D  Late ventricular diastole

E  Atrial contraction and ventricular filling

A  negative chronotropic agent.

B  positive chronotropic agent.

C  positive inotropic agent.

D  negative inotropic agent.

A  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

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

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

A  Contraction of the right atrium

B  Relaxation of the left atrium

C  Contraction of the right ventricle

D  Contraction of the left atrium

E  Relaxation of the right ventricle