practice question

A long time smoker is diagnosed with COPD. How would this effect CO2 levels in the body? How would this effect the pH of the blood?

practice question

Compare and contrast the chemical and physiological buffer systems. Why are there two systems? How do they work in conjunction to maintain homeostasis?

Practice question

Trace the pathway of a creatinine molecule from a glomerulus to the urethra. Name every microscopic and gross anatomical structure it passes along the way.

Stinging insects, allergies

You were picking blackberries and what you thought was a berry turned out to be a stinging insect. You removed the stinger, but your hand became swollen and sore. What type of hypersensitivity reaction occurred? What will happen the next time you are stung? Why will these events occur? You speak to an allergist who says you can receive "allergy shots" for this condition. What would the allergy shots accomplish?

Explain why the lymphatic system is a one-way system and the cardiovascular system is a two way system

Explain why the lymphatic system is a one-way system and the cardiovascular system is a two way system. How can material be moved through the lymphatic system? how does the anatomy of the lymphatic system correlate to this function?