Lecture Exam 1

A  pushes against the atrioventricular valves and opens them.

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

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 semilunar valves and opens them.

A  increase the oxygen carrying capacity of the blood.

B  increase the viscosity of the blood.

C  decrease the blood pressure in the arteries.

D  increase the carbon dioxide carrying capacity of the blood.

E  decrease the oxygen carrying capacity of the blood.

A  guide the inferior vena cava into the right atrium.

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

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

D  connect the top and bottom halves of the heart.

E  guide the aorta out 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  fast voltage-gated sodium channels and fast voltage-gated calcium channels.

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

A  None of the choices is correct.

B  Left atrioventricular valve

C  Right atrioventricular valve

D  Aortic semilunar valve

E  Pulmonary semilunar valve

A  decrease.

B  increase.

A  action potentials always occur at exactly the same frequency.

B  action potentials are stimulated by internal stores of acetylcholine.

C  action potentials fire spontaneously.

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

E  action potentials are initiated by the autonomic nervous system.

A  calcium

B  globin

C  heme

D  iron

A  altitude.

B  All of the choices are correct.

C  age.

D  sex.

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

B  increases, and so blood volume is abnormally high.

C  decreases, and so blood volume is abnormally high.

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

A  Cardiac muscle cell

B  Skeletal muscle cell

A  d

B  e

C  a

D  c

E  b

A  a, d, e

B  a, b, c

C  a, b, c, e

D  a, e, f

E  a, b, d

A  the donor had type O blood.

B  the wrong blood type was used.

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

D  the recipient had type AB blood.

A  Transportation

B  Prevention

C  Regulation

D  Protection

A  liver and spleen.

B  spleen and lung.

C  lung.

D  spleen.

E  liver.

A  lack a nucleus and organelles.

B  have lots of inclusion molecules.

C  are not red.

D  are actually dead.

E  can form a rouleau when moving through a capillary.

A  directly, indirectly

B  directly, directly

C  indirectly, directly

D  indirectly, indirectly

A  Neutrophils

B  Basophils and eosinophils

C  Lymphocytes and monocytes

D  Neutrophils, basophils, eosinophils, and monocytes

E  Lymphocytes

A  Presence of papillary muscles in the ventricles

B  Arrangement of cardiac muscle in the heart wall

C  Absence of oxygenated blood in the atria

D  Presence of skeletal muscle tissue in the heart skeleton

E  Negative pressure inside the ventricles

A  FALSE

B  TRUE

A  platelet repellant.

B  platelet attractant.

A  hemostasis, 9

B  hematopoiesis, 9

C  hemostasis, 120

D  hematopoiesis, 120

A  reticulocytes.

B  platelets.

C  promegakaryocytes.

D  myeloid stem cells.

E  late erythroblasts.

A  stabilize and hold the arteries leaving the heart.

B  permit the passage of blood in one direction.

C  direct the conduction impulse through the heart muscle.

D  separate the right and left sides of the heart.

E  are only used in the fetal heart.

A  neutrophil.

B  lymphocyte.

C  basophil.

D  monocyte.

E  eosinophil.

A  FALSE

B  TRUE

A  increase.

B  not change.

C  decrease.

A  calcium comes in through fast voltage-gated channels.

B  calcium moves out through slow voltage-gated channels.

C  sodium moves out through slow voltage-gated channels.

D  potassium moves out through fast voltage-gated channels.

E  potassium comes in through fast voltage-gated channels.

A  erythroblastosis.

B  agglutination.

C  hemopoiesis.

D  leukocytosis.

E  leukopenia.

A  Lymphocyte

B  Basophil

C  Neutrophil

D  Eosinophil

E  Monocyte

A  acidic, proteins

B  basic, glucose

C  basic, proteins

D  acidic, glucose

E  acidic, glycogen

A  a, c, d, b, e, f

B  c, b, a, d, e, f

C  a, b, c, e, d, f

D  c, a, b, e, d, f

E  c, a, e, b, 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  two

B  three

C  a highly variable number of

D  no

E  six

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  equalize the pressure in the great vessels.

B  lubricate membranes of the pericardium.

C  slow the heart rate.

D  All of the choices are correct.

E  eliminate blood pressure spikes.

A  bright red

B  dark blue

C  light blue

D  dark red

A  conus arteriosus.

B  tendinous cords.

C  tricuspid valve.

D  trabeculae carneae.

E  pectinate muscles.

A  c, d, a, b, f, g, e

B  c, d, a, f, b, g, e

C  f, g, d, c, b, a, e

D  b, a, d, c, f, g, e

E  d, b, a, 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  prothrombins.

B  endocrine hormones.

C  fibrinogens.

D  globulins.

E  albumins.

A  Superior vena cava

B  Inferior vena cava

C  Pulmonary veins

D  Pulmonary trunk

E  Pulmonary arteries

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

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

A  largest, prominent nuclei

B  smallest, no nucleus

C  largest, no nucleus

D  smallest, prominent nuclei

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

A  Coronary circuit

B  Visceral circuit

C  Systemic circuit

D  Pulmonary circuit

A  action potentials within the cusps of the valves.

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

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  mediastinum.

B  external layer of the fibrous pericardium.

C  parietal layer of the serosal pericardium.

D  visceral layer of the serosal pericardium.

E  myocardium.

A  a, c, d

B  b, d, e

C  a, c, e

D  b, c, e

E  a, b, e

A  a, c, d

B  b, d

C  e

D  a, b, c, d

E  a, d

A  lipids, heavy metals

B  oxygen, clotting proteins

C  antibodies, lipids

D  iron ions, antibodies

E  clotting factors, hormones

A  45

B  25

C  75

D  35

E  55

A  c, d, g

B  a, b, c, e, f

C  a, c, d, f

D  c, e, g

E  a, b, c, g

A  common

B  intrinsic

C  extrinsic

A  depolarized as potassium exits and calcium enters.

B  hyperpolarized as potassium enters and calcium exits.

C  hyperpolarized as sodium and calcium exit.

D  depolarized as potassium enters and calcium exits.

E  repolarized as sodium enters and calcium exits.

A  Isovolumetric contraction

B  Atrial contraction and ventricular filling

C  Ventricular ejection

D  Isovolumetric relaxation

E  Late ventricular diastole

A  positive inotropic agent.

B  negative chronotropic agent.

C  negative inotropic 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  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

A  Contraction of the right atrium

B  Relaxation of the right ventricle

C  Relaxation of the left atrium

D  Contraction of the left atrium

E  Contraction of the right ventricle