| A | B |
|---|
| Area posterior to mouth and nose | pharynx |
| central part of the pharynx | oropharynx |
| nasal part of the pharynx | nasopharynx |
| the windpipe | trachea |
| structure that prevents foreign objects form entering the trachea when swallowing | epiglottis |
| two main branches of the trachea that lead the the lungs | bronchi |
| air sacs of the lungs | alveoli |
| passage of air into and out of the lungs | respiration |
| process of breathing in | inspiration (inhalation) |
| process of breathing out | expiration (exhalation) |
| voice box | larynx |
| two upper chambers of the heart | atria |
| two lower chambers of the heart | ventricles |
| rate at which the heart beats | pulse |
| pulse felt on either side of neck | carotid pulse |
| pulse felt on the inside of the arm between elbow and shoulder | brachial pulse |
| pulse felt on the thumb side of wrist | radial pulse |
| pulse felt in the area of the groin between abdomen and thigh | femoral pulse |
| closed system of tubes through which blood flows | blood vessels |
| blood vessels that take blood away from heart | arteries |
| the smallest arteries | arterioles |
| the smallest blood vessles | capillaries |
| blood vessels that carry blood back to heart from rest of body | veins |
| the smallest veins | venules |
