The heart perfuses itself via the coronary arteries during which phase?

Place the following blood vessels in their respective category. 

What is the name of the valve that prevents backflow of blood into the right atrium when the right ventricle contracts?

Which hormone stimulates the muscles of the uterus to contract during labor and delivery?

Beginning in the SVC/IVC; show the blood flow through the heart by choosing the next location the blood travels until it reaches aorta.

Which structure is responsible for the production of tears?

Categorize each neurotransmitter with the correct receptors they activate. 

Which part of the ear is responsible for equalizing pressure?

A patient involved an a motorcycle accident is experiencing paraplegia. Where is the likely location of the patient’s injury?

When a nurse shines a light into a patient’s eye, the pupil constricts. This is called the photopupillary reflex. What is the purpose of this reflex?