Lecture Exam 1

A  pushes against the semilunar valves and opens them.

B  pushes against the atrioventricular valves and opens 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 semilunar valves and closes them.

A  decrease the oxygen carrying capacity of the blood.

B  increase the oxygen carrying capacity of the blood.

C  decrease the blood pressure in the arteries.

D  increase the viscosity of the blood.

E  increase the carbon dioxide carrying capacity of the blood.

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

B  connect the top and bottom halves of the heart.

C  guide the aorta out of the heart.

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 fast 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 slow voltage-gated calcium channels.

A  Aortic semilunar valve

B  Left atrioventricular valve

C  Pulmonary semilunar valve

D  Right atrioventricular valve

E  None of the choices is correct.

A  decrease.

B  increase.

A  action potentials are initiated by the autonomic nervous system.

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

C  action potentials always occur at exactly the same frequency.

D  action potentials fire spontaneously.

E  action potentials are stimulated by internal stores of acetylcholine.

A  iron

B  globin

C  calcium

D  heme

A  sex.

B  age.

C  altitude.

D  All of the choices are correct.

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  Skeletal muscle cell

B  Cardiac muscle cell

A  e

B  a

C  c

D  d

E  b

A  a, b, c

B  a, b, d

C  a, b, c, e

D  a, e, f

E  a, d, e

A  the wrong blood type was used.

B  the donor had type O blood.

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

D  the recipient had type AB blood.

A  Protection

B  Regulation

C  Transportation

D  Prevention

A  lung.

B  spleen.

C  liver.

D  spleen and lung.

E  liver and spleen.

A  lack a nucleus and organelles.

B  can form a rouleau when moving through a capillary.

C  are not red.

D  are actually dead.

E  have lots of inclusion molecules.

A  directly, directly

B  directly, indirectly

C  indirectly, indirectly

D  indirectly, directly

A  Lymphocytes

B  Lymphocytes and monocytes

C  Neutrophils, basophils, eosinophils, and monocytes

D  Neutrophils

E  Basophils and eosinophils

A  Negative pressure inside the ventricles

B  Presence of papillary muscles in the ventricles

C  Presence of skeletal muscle tissue in the heart skeleton

D  Arrangement of cardiac muscle in the heart wall

E  Absence of oxygenated blood in the atria

A  FALSE

B  TRUE

A  platelet attractant.

B  platelet repellant.

A  hemostasis, 120

B  hematopoiesis, 120

C  hemostasis, 9

D  hematopoiesis, 9

A  promegakaryocytes.

B  reticulocytes.

C  myeloid stem cells.

D  platelets.

E  late erythroblasts.

A  permit the passage of blood in one direction.

B  stabilize and hold the arteries leaving the heart.

C  separate the right and left sides of the heart.

D  are only used in the fetal heart.

E  direct the conduction impulse through the heart muscle.

A  lymphocyte.

B  neutrophil.

C  eosinophil.

D  monocyte.

E  basophil.

A  FALSE

B  TRUE

A  decrease.

B  increase.

C  not change.

A  calcium comes in through fast voltage-gated channels.

B  potassium moves out through fast voltage-gated channels.

C  potassium comes in through fast voltage-gated channels.

D  calcium moves out through slow voltage-gated channels.

E  sodium moves out through slow voltage-gated channels.

A  agglutination.

B  hemopoiesis.

C  erythroblastosis.

D  leukocytosis.

E  leukopenia.

A  Eosinophil

B  Neutrophil

C  Basophil

D  Lymphocyte

E  Monocyte

A  basic, glucose

B  basic, proteins

C  acidic, glucose

D  acidic, proteins

E  acidic, glycogen

A  c, b, a, d, e, f

B  c, a, b, e, d, f

C  c, a, b, e, d, f

D  c, a, e, b, d, f

E  a, b, c, e, d, f

F  a, c, d, b, e, f

A  1

B  2

C  Highly variable, depending on the heart beat rate

D  4

E  None of the choices is correct.

A  a highly variable number of

B  two

C  six

D  three

E  no

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

B  by a single ventricle in one minute.

C  by both ventricles in one minute.

D  by a single ventricle in one hour.

E  by both ventricles in one hour.

A  equalize the pressure in the great vessels.

B  All of the choices are correct.

C  lubricate membranes of the pericardium.

D  eliminate blood pressure spikes.

E  slow the heart rate.

A  dark blue

B  bright red

C  dark red

D  light blue

A  conus arteriosus.

B  pectinate muscles.

C  trabeculae carneae.

D  tendinous cords.

E  tricuspid valve.

A  d, b, a, c, f, g, e

B  c, d, a, b, f, g, e

C  c, d, a, f, b, g, e

D  b, a, d, c, f, g, e

E  f, g, d, c, b, a, 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  albumins.

B  globulins.

C  endocrine hormones.

D  fibrinogens.

E  prothrombins.

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 parasympathetic 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  largest, prominent nuclei

B  smallest, prominent nuclei

C  largest, no nucleus

D  smallest, no nucleus

A  Calcium is entering and potassium is leaving ventricular cells.

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

C  Sodium is rapidly diffusing out of atrial muscle cells.

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

A  Visceral circuit

B  Coronary circuit

C  Systemic circuit

D  Pulmonary circuit

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

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

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  mediastinum.

B  visceral layer of the serosal pericardium.

C  external layer of the fibrous pericardium.

D  myocardium.

E  parietal layer of the serosal pericardium.

A  a, c, e

B  a, b, e

C  a, c, d

D  b, d, e

E  b, c, e

A  a, b, c, d

B  a, c, d

C  b, d

D  e

E  a, d

A  iron ions, antibodies

B  lipids, heavy metals

C  clotting factors, hormones

D  oxygen, clotting proteins

E  antibodies, lipids

A  35

B  25

C  75

D  45

E  55

A  c, d, g

B  a, b, c, g

C  c, e, g

D  a, b, c, e, f

E  a, c, d, f

A  common

B  extrinsic

C  intrinsic

A  hyperpolarized as potassium enters and calcium exits.

B  depolarized as potassium exits and calcium enters.

C  depolarized as potassium enters and calcium exits.

D  hyperpolarized as sodium and calcium exit.

E  repolarized as sodium enters and calcium exits.

A  Late ventricular diastole

B  Isovolumetric contraction

C  Isovolumetric relaxation

D  Atrial contraction and ventricular filling

E  Ventricular ejection

A  negative chronotropic agent.

B  negative inotropic agent.

C  positive chronotropic agent.

D  positive 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 myoglobin, creatin kinase, and ketone bodies.

D  anaerobic metabolism using glycolytic enzymes to quickly generate ATP.

A  Relaxation of the left atrium

B  Contraction of the right ventricle

C  Relaxation of the right ventricle

D  Contraction of the left atrium

E  Contraction of the right atrium