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  pushes against the semilunar valves and closes 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  increase the oxygen carrying capacity of the blood.

C  decrease the oxygen carrying capacity of the blood.

D  increase the viscosity of the blood.

E  increase the carbon dioxide carrying capacity of the blood.

A  connect the top and bottom halves of the heart.

B  guide the aorta out of the heart.

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

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

E  guide the inferior vena cava into the right atrium.

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

A  Pulmonary semilunar valve

B  Aortic semilunar valve

C  Left atrioventricular 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  action potentials always occur at exactly the same frequency.

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  globin

D  calcium

A  All of the choices are correct.

B  altitude.

C  age.

D  sex.

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

B  decreases, and so blood volume is abnormally high.

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  c

D  e

E  a

A  a, e, f

B  a, b, c

C  a, d, e

D  a, b, d

E  a, b, c, e

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

B  the donor had type O blood.

C  the wrong blood type was used.

D  the recipient had type AB blood.

A  Transportation

B  Regulation

C  Protection

D  Prevention

A  liver and spleen.

B  liver.

C  spleen.

D  spleen and lung.

E  lung.

A  are not red.

B  are actually dead.

C  can form a rouleau when moving through a capillary.

D  have lots of inclusion molecules.

E  lack a nucleus and organelles.

A  indirectly, directly

B  indirectly, indirectly

C  directly, directly

D  directly, indirectly

A  Lymphocytes

B  Lymphocytes and monocytes

C  Neutrophils, basophils, eosinophils, and monocytes

D  Neutrophils

E  Basophils and eosinophils

A  Presence of papillary muscles in the ventricles

B  Presence of skeletal muscle tissue in the heart skeleton

C  Absence of oxygenated blood in the atria

D  Negative pressure inside 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  hemostasis, 120

C  hematopoiesis, 120

D  hematopoiesis, 9

A  late erythroblasts.

B  myeloid stem cells.

C  promegakaryocytes.

D  reticulocytes.

E  platelets.

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  are only used in the fetal heart.

E  separate the right and left sides of the heart.

A  monocyte.

B  lymphocyte.

C  neutrophil.

D  basophil.

E  eosinophil.

A  FALSE

B  TRUE

A  increase.

B  decrease.

C  not change.

A  calcium comes in through fast voltage-gated channels.

B  potassium comes in through fast voltage-gated channels.

C  calcium moves out through slow voltage-gated channels.

D  sodium moves out through slow voltage-gated channels.

E  potassium moves out through fast voltage-gated channels.

A  leukocytosis.

B  agglutination.

C  erythroblastosis.

D  leukopenia.

E  hemopoiesis.

A  Basophil

B  Lymphocyte

C  Eosinophil

D  Neutrophil

E  Monocyte

A  acidic, glucose

B  acidic, proteins

C  basic, glucose

D  acidic, glycogen

E  basic, proteins

A  c, a, b, e, d, f

B  c, a, b, e, d, f

C  c, a, e, b, d, f

D  a, c, d, b, e, f

E  a, b, c, e, d, f

F  c, b, a, d, e, f

A  None of the choices is correct.

B  2

C  4

D  Highly variable, depending on the heart beat rate

E  1

A  three

B  no

C  six

D  a highly variable number of

E  two

A  by a single ventricle in one hour.

B  by both ventricles in one hour.

C  by both ventricles in one minute.

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

E  by a single ventricle in one minute.

A  All of the choices are correct.

B  equalize the pressure in the great vessels.

C  slow the heart rate.

D  eliminate blood pressure spikes.

E  lubricate membranes of the pericardium.

A  dark red

B  light blue

C  dark blue

D  bright red

A  trabeculae carneae.

B  tricuspid valve.

C  pectinate muscles.

D  conus arteriosus.

E  tendinous cords.

A  c, d, a, f, b, g, e

B  b, a, d, c, f, g, e

C  f, g, d, c, b, a, e

D  d, b, a, c, f, g, 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  prostacyclin with the assistance of activated factor V.

D  prostacyclin with the assistance of thromboxane A2.

E  collagen with the assistance of prothrombin.

A  albumins.

B  fibrinogens.

C  endocrine hormones.

D  globulins.

E  prothrombins.

A  Superior vena cava

B  Pulmonary arteries

C  Pulmonary trunk

D  Inferior vena cava

E  Pulmonary veins

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 parasympathetic stimulation.

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

A  smallest, prominent nuclei

B  largest, prominent nuclei

C  smallest, no nucleus

D  largest, no nucleus

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

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

C  Sodium is rapidly diffusing out of atrial muscle cells.

D  Calcium is entering and potassium is leaving ventricular cells.

A  Pulmonary circuit

B  Visceral circuit

C  Systemic circuit

D  Coronary circuit

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

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

C  action potentials within the cusps of the valves.

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

A  external layer of the fibrous pericardium.

B  parietal layer of the serosal pericardium.

C  mediastinum.

D  myocardium.

E  visceral layer of the serosal pericardium.

A  b, d, e

B  a, c, e

C  a, c, d

D  b, c, e

E  a, b, e

A  a, c, d

B  b, d

C  a, b, c, d

D  e

E  a, d

A  clotting factors, hormones

B  lipids, heavy metals

C  oxygen, clotting proteins

D  iron ions, antibodies

E  antibodies, lipids

A  45

B  55

C  75

D  25

E  35

A  c, d, g

B  c, e, g

C  a, c, d, f

D  a, b, c, e, f

E  a, b, c, g

A  common

B  extrinsic

C  intrinsic

A  repolarized as sodium enters and calcium exits.

B  hyperpolarized as potassium enters and calcium exits.

C  depolarized as potassium enters and calcium exits.

D  depolarized as potassium exits and calcium enters.

E  hyperpolarized as sodium and calcium exit.

A  Isovolumetric contraction

B  Atrial contraction and ventricular filling

C  Ventricular ejection

D  Isovolumetric relaxation

E  Late ventricular diastole

A  negative chronotropic agent.

B  positive chronotropic agent.

C  negative inotropic 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 many mitochondria and a rich supply of myoglobin.

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