Lecture Exam 1

A  pushes against the semilunar valves and opens them.

B  pushes against the semilunar valves and closes them.

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

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  decrease the blood pressure in the arteries.

B  increase the oxygen carrying capacity of the blood.

C  increase the carbon dioxide carrying capacity of the blood.

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  shunt blood from the right atrium to the left atrium.

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

E  guide the inferior vena cava into the right 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  Aortic semilunar valve

B  Left atrioventricular 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 initiated by the autonomic nervous system.

C  action potentials fire spontaneously.

D  action potentials are stimulated by internal stores of acetylcholine.

E  action potentials always occur at exactly the same frequency.

A  iron

B  heme

C  globin

D  calcium

A  All of the choices are correct.

B  age.

C  sex.

D  altitude.

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

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

C  decreases, and so blood volume is abnormally high.

D  increases, and so blood volume is abnormally high.

A  Cardiac muscle cell

B  Skeletal muscle cell

A  b

B  c

C  e

D  a

E  d

A  a, e, f

B  a, b, c

C  a, d, e

D  a, b, d

E  a, b, c, e

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

B  the wrong blood type was used.

C  the donor had type O blood.

D  the recipient had type AB blood.

A  Transportation

B  Prevention

C  Protection

D  Regulation

A  liver.

B  spleen.

C  liver and spleen.

D  spleen and lung.

E  lung.

A  are not red.

B  have lots of inclusion molecules.

C  lack a nucleus and organelles.

D  can form a rouleau when moving through a capillary.

E  are actually dead.

A  directly, directly

B  indirectly, directly

C  directly, indirectly

D  indirectly, indirectly

A  Neutrophils, basophils, eosinophils, and monocytes

B  Lymphocytes

C  Neutrophils

D  Basophils and eosinophils

E  Lymphocytes and monocytes

A  Absence of oxygenated blood in the atria

B  Presence of skeletal muscle tissue in the heart skeleton

C  Arrangement of cardiac muscle in the heart wall

D  Negative pressure inside the ventricles

E  Presence of papillary muscles in the ventricles

A  FALSE

B  TRUE

A  platelet attractant.

B  platelet repellant.

A  hematopoiesis, 120

B  hematopoiesis, 9

C  hemostasis, 9

D  hemostasis, 120

A  platelets.

B  myeloid stem cells.

C  late erythroblasts.

D  reticulocytes.

E  promegakaryocytes.

A  stabilize and hold the arteries leaving the heart.

B  are only used in the fetal 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  neutrophil.

B  basophil.

C  eosinophil.

D  lymphocyte.

E  monocyte.

A  TRUE

B  FALSE

A  increase.

B  not change.

C  decrease.

A  potassium comes in through fast voltage-gated channels.

B  potassium moves out through fast voltage-gated channels.

C  calcium moves out through slow voltage-gated channels.

D  calcium comes in through fast voltage-gated channels.

E  sodium moves out through slow voltage-gated channels.

A  hemopoiesis.

B  agglutination.

C  leukocytosis.

D  erythroblastosis.

E  leukopenia.

A  Neutrophil

B  Monocyte

C  Eosinophil

D  Basophil

E  Lymphocyte

A  acidic, glucose

B  acidic, glycogen

C  acidic, proteins

D  basic, glucose

E  basic, proteins

A  c, a, b, e, d, f

B  a, c, d, b, e, f

C  c, b, a, d, e, f

D  c, a, e, b, d, f

E  a, b, c, e, d, f

F  c, a, b, e, d, f

A  1

B  2

C  Highly variable, depending on the heart beat rate

D  None of the choices is correct.

E  4

A  a highly variable number of

B  six

C  no

D  two

E  three

A  by a single ventricle in one hour.

B  by both ventricles 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 minute.

A  eliminate blood pressure spikes.

B  lubricate membranes of the pericardium.

C  slow the heart rate.

D  equalize the pressure in the great vessels.

E  All of the choices are correct.

A  dark blue

B  light blue

C  bright red

D  dark red

A  conus arteriosus.

B  tendinous cords.

C  trabeculae carneae.

D  pectinate muscles.

E  tricuspid valve.

A  d, b, a, c, f, g, e

B  f, g, d, c, b, a, e

C  c, d, a, b, f, g, e

D  c, d, a, f, b, g, e

E  b, a, d, c, f, g, e

A  proconvertin with the assistance of factor IX.

B  collagen with the assistance of prothrombin.

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  prothrombins.

C  fibrinogens.

D  albumins.

E  endocrine hormones.

A  Pulmonary veins

B  Pulmonary arteries

C  Pulmonary trunk

D  Inferior vena cava

E  Superior 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 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 sympathetic stimulation.

A  smallest, no nucleus

B  smallest, prominent nuclei

C  largest, prominent nuclei

D  largest, no nucleus

A  Calcium is entering and potassium is leaving ventricular cells.

B  Sodium is rapidly diffusing out of atrial muscle cells.

C  Sodium channels are beginning to open in ventricular cells and calcium is entering through slow channels in atrial cells.

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

A  Systemic circuit

B  Coronary circuit

C  Pulmonary circuit

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

D  action potentials within the cusps of the valves.

A  myocardium.

B  mediastinum.

C  external layer of the fibrous pericardium.

D  visceral layer of the serosal pericardium.

E  parietal layer of the serosal pericardium.

A  a, b, e

B  b, c, e

C  b, d, e

D  a, c, d

E  a, c, e

A  a, d

B  a, b, c, d

C  a, c, d

D  e

E  b, d

A  clotting factors, hormones

B  lipids, heavy metals

C  iron ions, antibodies

D  oxygen, clotting proteins

E  antibodies, lipids

A  25

B  35

C  45

D  55

E  75

A  a, c, d, f

B  c, e, g

C  c, d, g

D  a, b, c, e, f

E  a, b, c, g

A  intrinsic

B  extrinsic

C  common

A  hyperpolarized as sodium and calcium exit.

B  hyperpolarized as potassium enters and calcium exits.

C  depolarized as potassium enters and calcium exits.

D  repolarized as sodium enters and calcium exits.

E  depolarized as potassium exits and calcium enters.

A  Isovolumetric contraction

B  Isovolumetric relaxation

C  Atrial contraction and ventricular filling

D  Late ventricular diastole

E  Ventricular ejection

A  negative inotropic agent.

B  positive inotropic agent.

C  negative chronotropic agent.

D  positive chronotropic 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  Relaxation of the right ventricle

E  Contraction of the left atrium