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of 156 available terms
(2 exact duplicates found)

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5 Written questions

5 Matching questions

  1. Coronary arteries
  2. Endocardium
  3. Atrioventricular canal
  4. Stroke volume (SV)
  5. Inferior Vena Cava
  1. a Vein that returns blood from the lower limbs, and the greater part of the pelvic and abdominal organs to the right atrium.
  2. b One of the arteries that arise from the base of the aorta and carry blood to the muscle of the heart. Exit the aorta just above the point where the aorta leaves the heart and lie within the coronary sulcus
  3. c is the volume of blood pumped during each heartbeat (cardiac cycle), and it is equal to end-diastolic volume minus end-systolic volume.
  4. d The smooth, inner surface of the heart chambers, consists of simple squamous epithelium over a layer of connective tissue. Also covers the surface of the heart valves.
  5. e The atria open into the ventricles thru this, it's a passage way that the atria open into to get to the ventricle.

5 Multiple choice questions

  1. Vein that returns blood from the head and neck, upper limbs, and thorax to the right atrium.
  2. The semilunar valves are pushed open, and blood flows from the ventricles into the pulmonary trunk and aorta.
  3. muscular ridges
  4. carry blood from the lungs to the left atrium.
  5. The cell is sensitive to stimulation, but a greater stimulation than normal is required to cause an action potential. Portion of the action potential following the absolute refraction period during which another action potential can be produced with a greater-than-threshold stimulus strength.

5 True/False questions

  1. Refractory periodsPeriod following effective stimulation during which excitable tissue, such as heart muscle, fails to respond to a stimulus of threshold intensity.

          

  2. Pulmonary Semilunar Valveis located in the aorta.

          

  3. Peripheral resistance (PR)is contraction of the arterial myocardium

          

  4. Antihypertensive agentsComprise several drugs used to treat hypertension. These drugs lower blood pressure and therefore reduce the work required by the heart to pump blood.

          

  5. Vagus nervesEither one of the tenth pair of cranial nerves, consisting of motor fibers that innervate the muscles of the pharynx, larynx, heart, and thoracic and abdominal viscera, and of sensory fibers that conduct impulses from these structures to the brain.