What is #1 pointing to?

Right atrium
What cavity is #4 pointing to?

Nasal cavity
What is #2 pointing to?

Esophagus
What structure is #4 pointing to?

Occipital lobe
What is #1 pointing to?

Cornea
What is #4 pointing to?

Left ventricle
What structure is #3 pointing to?

Epiglottis
What is #6 pointing to?

Liver
What is #5 pointing to?

Cerebellum
What is #2 pointing to?

Lens
What is #5 pointing to?

Superior Vena Cava
What structure is #10 pointing to?
[DOUBLE JEOPARDY!!!]

Hyoid bone
What is #11 pointing to?

Pancreas
What is #6 pointing to?
[DOUBLE JEOPARDY!!!]

Corpus Callosum
What is #4 pointing to?

Iris
What is #13 pointing to?
[DOUBLE JEOPARDY!!!]

Pulmonary Semilunar Valve
What is #1 pointing to?

Trachea
What is #12 pointing to?
[DOUBLE JEOPARDY!!!]

Cardiac sphincter
What is #17 pointing to?
[DOUBLE JEOPARDY!!!]

Nodes of Ranvier
What is #3 pointing to?
[DOUBLE JEOPARDY!!!]

Retina