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

D  pushes against the atrioventricular valves and opens them.

E  pushes against the semilunar valves and closes them.

A  increase the carbon dioxide carrying capacity of the blood.

B  increase the viscosity of the blood.

C  decrease the blood pressure in the arteries.

D  increase the oxygen carrying capacity of the blood.

E  decrease the oxygen carrying capacity of the blood.

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

B  guide the inferior vena cava into the right atrium.

C  connect the top and bottom halves of the heart.

D  guide the aorta out of the heart.

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

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

B  fast 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  Left atrioventricular valve

B  Pulmonary semilunar valve

C  Right atrioventricular valve

D  None of the choices is correct.

E  Aortic semilunar valve

A  increase.

B  decrease.

A  action potentials always occur at exactly the same frequency.

B  action potentials are initiated by the autonomic nervous system.

C  action potentials fire spontaneously.

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

E  action potentials are stimulated by internal stores of acetylcholine.

A  iron

B  heme

C  calcium

D  globin

A  age.

B  altitude.

C  All of the choices are correct.

D  sex.

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  c

C  e

D  a

E  d

A  a, b, c, e

B  a, b, d

C  a, d, e

D  a, b, c

E  a, e, f

A  the recipient had type AB blood.

B  the wrong blood type was used.

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

D  the donor had type O blood.

A  Regulation

B  Protection

C  Prevention

D  Transportation

A  liver and spleen.

B  spleen and lung.

C  spleen.

D  lung.

E  liver.

A  have lots of inclusion molecules.

B  can form a rouleau when moving through a capillary.

C  are actually dead.

D  are not red.

E  lack a nucleus and organelles.

A  indirectly, directly

B  indirectly, indirectly

C  directly, directly

D  directly, indirectly

A  Lymphocytes

B  Neutrophils

C  Neutrophils, basophils, eosinophils, and monocytes

D  Lymphocytes and monocytes

E  Basophils and eosinophils

A  Negative pressure inside the ventricles

B  Presence of skeletal muscle tissue in the heart skeleton

C  Absence of oxygenated blood in the atria

D  Presence of papillary muscles in the ventricles

E  Arrangement of cardiac muscle in the heart wall

A  FALSE

B  TRUE

A  platelet repellant.

B  platelet attractant.

A  hemostasis, 9

B  hematopoiesis, 9

C  hematopoiesis, 120

D  hemostasis, 120

A  promegakaryocytes.

B  late erythroblasts.

C  platelets.

D  reticulocytes.

E  myeloid stem cells.

A  permit the passage of blood in one direction.

B  direct the conduction impulse through the heart muscle.

C  stabilize and hold the arteries leaving the heart.

D  separate the right and left sides of the heart.

E  are only used in the fetal heart.

A  monocyte.

B  eosinophil.

C  lymphocyte.

D  basophil.

E  neutrophil.

A  TRUE

B  FALSE

A  decrease.

B  increase.

C  not change.

A  sodium moves out through slow voltage-gated channels.

B  calcium 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 comes in through fast voltage-gated channels.

A  erythroblastosis.

B  agglutination.

C  leukocytosis.

D  leukopenia.

E  hemopoiesis.

A  Neutrophil

B  Eosinophil

C  Monocyte

D  Lymphocyte

E  Basophil

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, e, b, d, f

D  c, a, b, e, d, f

E  a, c, d, b, e, f

F  c, a, b, e, d, f

A  1

B  4

C  None of the choices is correct.

D  2

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 the left ventricle into the aorta in one beat.

B  by a single ventricle in one hour.

C  by both ventricles in one minute.

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  All of the choices are correct.

D  slow the heart rate.

E  equalize the pressure in the great vessels.

A  dark blue

B  bright red

C  light blue

D  dark red

A  conus arteriosus.

B  pectinate muscles.

C  tricuspid valve.

D  trabeculae carneae.

E  tendinous cords.

A  b, a, d, c, 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  c, d, a, b, f, g, e

A  proconvertin with the assistance of factor IX.

B  collagen with the assistance of von Willebrand factor.

C  collagen with the assistance of prothrombin.

D  prostacyclin with the assistance of activated factor V.

E  prostacyclin with the assistance of thromboxane A2.

A  globulins.

B  prothrombins.

C  endocrine hormones.

D  albumins.

E  fibrinogens.

A  Superior vena cava

B  Pulmonary veins

C  Pulmonary arteries

D  Pulmonary trunk

E  Inferior vena cava

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

B  increasing of the heart rate above its inherent rhythm by sympathetic 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, prominent nuclei

B  largest, prominent nuclei

C  smallest, no nucleus

D  largest, 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 is rapidly diffusing out of atrial muscle cells.

D  Sodium channels are beginning to open in ventricular cells and calcium is entering through slow channels in atrial 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  contraction and relaxation of papillary muscles that pull on heart strings.

C  action potentials within the cusps of the valves.

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

A  external layer of the fibrous pericardium.

B  parietal layer of the serosal pericardium.

C  visceral layer of the serosal pericardium.

D  myocardium.

E  mediastinum.

A  a, c, d

B  a, b, e

C  a, c, e

D  b, d, e

E  b, c, e

A  e

B  a, c, d

C  a, d

D  b, d

E  a, b, c, d

A  iron ions, antibodies

B  oxygen, clotting proteins

C  antibodies, lipids

D  clotting factors, hormones

E  lipids, heavy metals

A  55

B  45

C  25

D  35

E  75

A  a, c, d, f

B  c, d, g

C  c, e, g

D  a, b, c, e, f

E  a, b, c, g

A  extrinsic

B  common

C  intrinsic

A  depolarized as potassium enters and calcium exits.

B  hyperpolarized as sodium and calcium exit.

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 contraction

B  Late ventricular diastole

C  Atrial contraction and ventricular filling

D  Ventricular ejection

E  Isovolumetric relaxation

A  negative chronotropic agent.

B  positive chronotropic agent.

C  negative inotropic agent.

D  positive inotropic agent.

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

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

C  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

A  Contraction of the right atrium

B  Contraction of the left atrium

C  Contraction of the right ventricle

D  Relaxation of the left atrium

E  Relaxation of the right ventricle