Identify the labeled structure at the pointer (entire circular structure).

What does an electrocardiograph (ECG) measure?

Identify the labeled structure at #35.

Identify the labeled structure at the pointer.

All of the following are effects of the labeled endocrine gland EXCEPT:

Identify the tissue at the pointer.

Define tachycardia.

The condition necessary for the conservation of linear momentum in a given system is that

The labeled vessel would carry blood to which chamber of the heart?

Name a visual test for which this item was used.