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  pushes against the atrioventricular valves and opens them.

D  pushes against the semilunar valves and closes them.

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

A  decrease the oxygen carrying capacity of the blood.

B  increase 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  decrease the blood pressure in the arteries.

A  guide the aorta out of the heart.

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

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

D  connect the top and bottom halves of the heart.

E  guide the inferior vena cava into the right atrium.

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

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

C  fast voltage-gated sodium channels and fast 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  Pulmonary semilunar valve

D  Aortic semilunar valve

E  Left atrioventricular valve

A  increase.

B  decrease.

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

B  action potentials always occur at exactly the same frequency.

C  action potentials fire spontaneously.

D  action potentials are initiated by the autonomic nervous system.

E  action potentials are stimulated by internal stores of acetylcholine.

A  heme

B  calcium

C  globin

D  iron

A  age.

B  sex.

C  altitude.

D  All of the choices are correct.

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

B  increases, and so blood volume is abnormally high.

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

D  decreases, and so blood volume is abnormally high.

A  Skeletal muscle cell

B  Cardiac muscle cell

A  a

B  d

C  b

D  c

E  e

A  a, b, c

B  a, b, c, e

C  a, d, e

D  a, e, f

E  a, b, d

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

B  the donor had type O blood.

C  the recipient had type AB blood.

D  the wrong blood type was used.

A  Protection

B  Regulation

C  Prevention

D  Transportation

A  lung.

B  liver.

C  spleen.

D  spleen and lung.

E  liver and spleen.

A  are actually dead.

B  can form a rouleau when moving through a capillary.

C  have lots of inclusion molecules.

D  are not red.

E  lack a nucleus and organelles.

A  directly, indirectly

B  indirectly, indirectly

C  indirectly, directly

D  directly, directly

A  Neutrophils, basophils, eosinophils, and monocytes

B  Lymphocytes

C  Basophils and eosinophils

D  Lymphocytes and monocytes

E  Neutrophils

A  Absence of oxygenated blood in the atria

B  Arrangement of cardiac muscle in the heart wall

C  Negative pressure inside the ventricles

D  Presence of papillary muscles in the ventricles

E  Presence of skeletal muscle tissue in the heart skeleton

A  TRUE

B  FALSE

A  platelet attractant.

B  platelet repellant.

A  hemostasis, 120

B  hematopoiesis, 9

C  hematopoiesis, 120

D  hemostasis, 9

A  promegakaryocytes.

B  reticulocytes.

C  late erythroblasts.

D  platelets.

E  myeloid stem cells.

A  are only used in the fetal heart.

B  separate the right and left sides of the heart.

C  stabilize and hold the arteries leaving the heart.

D  permit the passage of blood in one direction.

E  direct the conduction impulse through the heart muscle.

A  lymphocyte.

B  neutrophil.

C  basophil.

D  eosinophil.

E  monocyte.

A  TRUE

B  FALSE

A  decrease.

B  not change.

C  increase.

A  sodium moves out through slow voltage-gated channels.

B  potassium comes in through fast voltage-gated channels.

C  potassium moves out through fast voltage-gated channels.

D  calcium comes in through fast voltage-gated channels.

E  calcium moves out through slow voltage-gated channels.

A  leukocytosis.

B  leukopenia.

C  erythroblastosis.

D  agglutination.

E  hemopoiesis.

A  Basophil

B  Neutrophil

C  Monocyte

D  Lymphocyte

E  Eosinophil

A  acidic, glycogen

B  acidic, glucose

C  acidic, proteins

D  basic, glucose

E  basic, proteins

A  c, a, b, e, d, f

B  c, a, e, b, d, f

C  a, b, c, e, d, f

D  c, b, a, d, e, f

E  a, c, d, b, e, f

F  c, a, b, e, d, f

A  None of the choices is correct.

B  Highly variable, depending on the heart beat rate

C  1

D  4

E  2

A  a highly variable number of

B  two

C  three

D  six

E  no

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

B  by both ventricles in one hour.

C  by both ventricles in one minute.

D  by a single ventricle in one hour.

E  by a single ventricle in one minute.

A  equalize the pressure in the great vessels.

B  eliminate blood pressure spikes.

C  slow the heart rate.

D  All of the choices are correct.

E  lubricate membranes of the pericardium.

A  bright red

B  light blue

C  dark blue

D  dark red

A  tricuspid valve.

B  conus arteriosus.

C  tendinous cords.

D  trabeculae carneae.

E  pectinate muscles.

A  c, d, a, f, b, g, e

B  c, d, a, b, f, g, e

C  b, a, d, c, f, g, e

D  f, g, d, c, b, a, e

E  d, b, a, c, f, g, e

A  prostacyclin with the assistance of activated factor V.

B  collagen with the assistance of prothrombin.

C  proconvertin with the assistance of factor IX.

D  prostacyclin with the assistance of thromboxane A2.

E  collagen with the assistance of von Willebrand factor.

A  fibrinogens.

B  globulins.

C  prothrombins.

D  albumins.

E  endocrine hormones.

A  Inferior vena cava

B  Superior 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  smallest, prominent nuclei

B  smallest, no nucleus

C  largest, no nucleus

D  largest, prominent nuclei

A  Sodium is rapidly diffusing out of atrial muscle cells.

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

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

D  Calcium is entering and potassium is leaving ventricular cells.

A  Coronary circuit

B  Pulmonary circuit

C  Visceral circuit

D  Systemic circuit

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

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

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

D  action potentials within the cusps of the valves.

A  parietal layer of the serosal pericardium.

B  visceral layer of the serosal pericardium.

C  mediastinum.

D  external layer of the fibrous pericardium.

E  myocardium.

A  b, d, e

B  a, c, e

C  a, c, d

D  a, b, e

E  b, c, e

A  e

B  a, b, c, d

C  a, c, d

D  a, d

E  b, d

A  clotting factors, hormones

B  antibodies, lipids

C  oxygen, clotting proteins

D  iron ions, antibodies

E  lipids, heavy metals

A  25

B  75

C  55

D  35

E  45

A  a, b, c, g

B  c, d, g

C  a, c, d, f

D  c, e, g

E  a, b, c, e, f

A  extrinsic

B  common

C  intrinsic

A  repolarized as sodium enters and calcium exits.

B  depolarized as potassium exits and calcium enters.

C  hyperpolarized as potassium enters and calcium exits.

D  depolarized as potassium enters and calcium exits.

E  hyperpolarized as sodium and calcium exit.

A  Ventricular ejection

B  Atrial contraction and ventricular filling

C  Isovolumetric relaxation

D  Late ventricular diastole

E  Isovolumetric contraction

A  negative inotropic agent.

B  negative chronotropic agent.

C  positive chronotropic agent.

D  positive inotropic agent.

A  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

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

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

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

A  Contraction of the right ventricle

B  Relaxation of the right ventricle

C  Contraction of the left atrium

D  Contraction of the right atrium

E  Relaxation of the left atrium