Which layer would contain relatively large amounts of iron (Fe)?

If the SA node is not functioning, an ECG will show ________.  

Which of the following is NOT  true regarding hemostasis:  

Which of these vessels would contain the lowest blood pressure?

Supplies the brain with blood.

Supplies the arm with blood.

Anemia is a condition in which the oxygen carrying capacity of the blood declines. Which of the following would lead to anemia:  

   How would you classify the epithelium in the image?

Where would you find transitional epithelium?

What cell type is involved in contractility in epithelia (often found in glands and ducts)?