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tutubella tutubella
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6 years ago
The atomic number of an atom is equal to the number of ________ an atom contains.
 
  A) protons
  B) neutrons
  C) protons and neutrons
  D) neutrons and electrons



(Question 2) The cusps of the AV valves are extensions of which layer of the heart wall?
 
  A) epicardium
  B) parietal pericardium
  C) myocardium
  D) endocardium



(Question 3) The most common element in the human body is ________.
 
  A) carbon
  B) oxygen
  C) hydrogen
  D) nitrogen



(Question 4) A failure of which of the following heart valves would most likely lead to right atrial hypertrophy?
 
  A) pulmonary semilunar valve
  B) tricuspid valve
  C) aortic semilunar valve
  D) bicuspid valve



(Question 5) Which of the following is NOT a subatomic particle associated with an atom?
 
  A) neutron
  B) electron
  C) proton
  D) ion



(Question 6) Which valve regulates flow between the right ventricle and the pulmonary trunk?
 
  A) pulmonary semilunar
  B) aortic semilunar valve
  C) tricuspid valve
  D) mitral valve



(Question 7) Nerve impulses involve the flow of an electrical current, a type of energy known as ________ energy.
 
  A) radiant
  B) mechanical
  C) electrical
  D) chemical



(Question 8) Which of the following structures is the opening that connects the atria in the fetal heart?
 
  A) trabeculae carneae
  B) conus arteriosus
  C) foramen ovale
  D) aortic vestibule



(Question 9) Matter is best described as ________.
 
  A) having no mass
  B) the ability to put matter into motion
  C) anything that occupies space and has mass
  D) the ability to do work



(Question 10) What is the name of the area within the thoracic cavity where the heart is located?
 
  A) fossa ovalis
  B) auricle
  C) mediastinum
  D) thoracic cavity
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brandelynbrandelyn
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6 years ago
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