________ is the process of air going into and out of the lungs.

________ is the process of air going into and out of the lungs.
 
  A) Ventilation
  B) Inhalation
  C) Inspiration
  D) Exhalation

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The ________, which pumps blood through the body, is the strongest and thickest part of the heart.
 
  A) right atria
  B) left atria
  C) left ventricle
  D) right ventricle

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The function of the ligament is to connect:
 
  A) bone to bone.
  B) bone to muscle.
  C) muscle to muscle.
  D) muscle to organ.

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The spinal column consists of ________ bones called vertebrae.
 
  A) 33
  B) 30
  C) 23
  D) 20

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Another name for the thigh bone is the:
 
  A) humerus.
  B) fibula.
  C) tibia.
  D) femur.