The thirst center in the brain is located in the thalamus.

Which is NOT a function of the kidneys?

Interstitial fluid has a relatively _______ concentration of sodium and chloride. The concentrations of ions within the interstitial fluid and blood plasma are very ______.

Which of the following muscles are active during deep breathing?

With hemoglobin, ________ is transported attached to the heme molecule while __________ is transported attached to the globin moelcule.

Which of the following statements about hemoglobin is CORRECT?

Which of the following regions in the respiratory tract contain nonkeratinized stratified squamous epithelium?

Which path of arteries would a blood cell follow on its way from the thigh to the foot?

Identify the respiratory structure outlined in RED and indicated by the RED ARROW.

Foreign particles are more likely to get lodged in the right primary bronchus.