Lecture Exam 1

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

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

A  decrease the blood pressure in the arteries.

B  decrease the oxygen carrying capacity of the blood.

C  increase the viscosity of the blood.

D  increase the carbon dioxide carrying capacity of the blood.

E  increase the oxygen carrying capacity 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 inferior vena cava into the right atrium.

D  connect the top and bottom halves of the heart.

E  guide the aorta out of the heart.

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

B  slow 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  None of the choices is correct.

C  Aortic semilunar valve

D  Left atrioventricular valve

E  Pulmonary semilunar valve

A  decrease.

B  increase.

A  action potentials are initiated by the autonomic nervous system.

B  action potentials are stimulated by internal stores of acetylcholine.

C  action potentials always occur at exactly the same frequency.

D  action potentials fire spontaneously.

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

A  globin

B  calcium

C  heme

D  iron

A  sex.

B  All of the choices are correct.

C  age.

D  altitude.

A  decreases, and so blood volume is abnormally high.

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

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

D  increases, and so blood volume is abnormally high.

A  Skeletal muscle cell

B  Cardiac muscle cell

A  b

B  d

C  a

D  c

E  e

A  a, d, e

B  a, b, c

C  a, b, c, e

D  a, b, d

E  a, e, f

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

B  the recipient had type AB blood.

C  the wrong blood type was used.

D  the donor had type O blood.

A  Transportation

B  Protection

C  Regulation

D  Prevention

A  spleen and lung.

B  spleen.

C  lung.

D  liver and spleen.

E  liver.

A  have lots of inclusion molecules.

B  are not red.

C  lack a nucleus and organelles.

D  can form a rouleau when moving through a capillary.

E  are actually dead.

A  directly, directly

B  directly, indirectly

C  indirectly, indirectly

D  indirectly, directly

A  Lymphocytes

B  Neutrophils, basophils, eosinophils, and monocytes

C  Basophils and eosinophils

D  Lymphocytes and monocytes

E  Neutrophils

A  Absence of oxygenated blood in the atria

B  Presence of skeletal muscle tissue in the heart skeleton

C  Negative pressure inside the ventricles

D  Presence of papillary muscles in the ventricles

E  Arrangement of cardiac muscle in the heart wall

A  FALSE

B  TRUE

A  platelet attractant.

B  platelet repellant.

A  hemostasis, 9

B  hematopoiesis, 9

C  hemostasis, 120

D  hematopoiesis, 120

A  platelets.

B  myeloid stem cells.

C  late erythroblasts.

D  reticulocytes.

E  promegakaryocytes.

A  stabilize and hold the arteries leaving the heart.

B  separate the right and left sides of the heart.

C  are only used in the fetal heart.

D  direct the conduction impulse through the heart muscle.

E  permit the passage of blood in one direction.

A  monocyte.

B  eosinophil.

C  basophil.

D  lymphocyte.

E  neutrophil.

A  FALSE

B  TRUE

A  decrease.

B  increase.

C  not change.

A  calcium moves out through slow voltage-gated channels.

B  potassium moves out through fast voltage-gated channels.

C  sodium moves out through slow voltage-gated channels.

D  potassium comes in through fast voltage-gated channels.

E  calcium comes in through fast voltage-gated channels.

A  leukocytosis.

B  hemopoiesis.

C  agglutination.

D  erythroblastosis.

E  leukopenia.

A  Basophil

B  Lymphocyte

C  Neutrophil

D  Eosinophil

E  Monocyte

A  acidic, proteins

B  acidic, glucose

C  basic, proteins

D  acidic, glycogen

E  basic, glucose

A  a, b, c, e, d, f

B  c, a, e, b, d, f

C  c, a, b, e, d, f

D  c, a, b, e, d, f

E  c, b, a, d, e, f

F  a, c, d, b, e, f

A  Highly variable, depending on the heart beat rate

B  4

C  1

D  None of the choices is correct.

E  2

A  no

B  two

C  three

D  a highly variable number of

E  six

A  by a single ventricle in one minute.

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

C  by both ventricles in one hour.

D  by both ventricles in one minute.

E  by a single ventricle in one hour.

A  All of the choices are correct.

B  lubricate membranes of the pericardium.

C  equalize the pressure in the great vessels.

D  slow the heart rate.

E  eliminate blood pressure spikes.

A  light blue

B  dark red

C  bright red

D  dark blue

A  conus arteriosus.

B  trabeculae carneae.

C  tricuspid valve.

D  tendinous cords.

E  pectinate muscles.

A  f, g, d, c, b, a, e

B  b, a, d, c, f, g, e

C  c, d, a, f, b, g, e

D  d, b, a, c, f, g, 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  collagen with the assistance of von Willebrand factor.

D  prostacyclin with the assistance of activated factor V.

E  proconvertin with the assistance of factor IX.

A  albumins.

B  fibrinogens.

C  endocrine hormones.

D  globulins.

E  prothrombins.

A  Superior vena cava

B  Pulmonary arteries

C  Inferior vena cava

D  Pulmonary trunk

E  Pulmonary veins

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

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

A  smallest, prominent nuclei

B  largest, prominent nuclei

C  largest, no nucleus

D  smallest, no nucleus

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

B  Calcium is entering and potassium is leaving ventricular cells.

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

D  Sodium is rapidly diffusing out of atrial muscle cells.

A  Pulmonary circuit

B  Visceral circuit

C  Coronary circuit

D  Systemic circuit

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

B  action potentials within the cusps of the valves.

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

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

A  mediastinum.

B  parietal layer of the serosal pericardium.

C  myocardium.

D  external layer of the fibrous pericardium.

E  visceral layer of the serosal pericardium.

A  a, c, d

B  b, d, e

C  a, b, e

D  b, c, e

E  a, c, e

A  a, c, d

B  b, d

C  a, d

D  a, b, c, d

E  e

A  lipids, heavy metals

B  clotting factors, hormones

C  iron ions, antibodies

D  antibodies, lipids

E  oxygen, clotting proteins

A  35

B  75

C  25

D  55

E  45

A  c, d, g

B  a, c, d, f

C  a, b, c, e, f

D  c, e, g

E  a, b, c, g

A  common

B  intrinsic

C  extrinsic

A  hyperpolarized as sodium and calcium exit.

B  depolarized as potassium enters and calcium exits.

C  depolarized as potassium exits and calcium enters.

D  hyperpolarized as potassium enters and calcium exits.

E  repolarized as sodium enters and calcium exits.

A  Isovolumetric relaxation

B  Ventricular ejection

C  Isovolumetric contraction

D  Late ventricular diastole

E  Atrial contraction and ventricular filling

A  positive chronotropic agent.

B  positive inotropic agent.

C  negative chronotropic agent.

D  negative inotropic agent.

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

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

C  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

A  Relaxation of the left atrium

B  Relaxation of the right ventricle

C  Contraction of the left atrium

D  Contraction of the right ventricle

E  Contraction of the right atrium