Select the correct definition for each bone structure

Which of the following have openings in the Right Atrium?

        A patient is prescribed eye drops that constrict the Iris sphincter, permitting aqueous humor to flow. The nurse would reinforce the teaching by referring to the drops as:

Gaps in the myelin sheath:  

Gene was born with a malformed mitral valve. How will that affect her circulation?

The correlation of bone resorption to bone deposition in osteoporesis is that bone resorption exceeds bone deposition

Bones are constantly undergoing reabsorption for various reasons. Which of the following cells accomplishes this process?

A _______ is a place where the ends of two bones are in proximity and move in relation to each other.

Why is the left side of the heart thicker and larger than the right side of the heart?

Atrial repolarization never occurs, which is demonstrated in an EKG.