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The bottom chambers of the heart whose job it is to pump blood out of the heart are called _____.

The smallest blood vessels that are found in almost all tissues of the body are ________.

The _______ or auditory tube connects the middle ear with the throat to allow for the equalization of pressure. 

The _____ ______ or eardrum is a boundary between the outer and middle ear. It relays vibrations to the bones of the middle ear. 

The ____ is the most anterior part of the vascular tunic. It is the visible colored part of the eye that adjusts the size of the pupil. 

The _____ is the deepest layer of the eye. It contains the pigmented layer and the neural layer. 

Photoreceptors that provide gray tones and less defined vision are _____.

The _____  _______ attaches the lower limbs to the trunk of the body. 

The foot is further from the trunk of the body than the kneecap. That means it is _____.

The humerus is located in the lower arm.