The heart is comprised of 4 chambers. The upper is called the atria (plural) and the lower are the ventricles. Blood flows into the right atrium (singular), then is pumped into the right ventricle. The right ventricle continues the flow, pumping the blood into the lungs where it receives oxygen. From there, it flows into […]
The lens of the eye is normally transparent, allowing light through to the retina in back of the eye. A cataract causes the lens of the eye to become cloudy or opaque, decreasing or eventually blocking light to the retina, causing impaired vision and eventually blindness. Cataracts can be hereditary or caused by disease such […]
The Trigeminal Nerve is the 5th cranial nerve (or CNV) controlling sensation in the face and motor funtions such as biting and chewing. The Trigeminal Nerve (tri-3, geminis-twin, thrice twined) has three major branches, the opthalmic nerve, the maxillary nerve and the mandibular nerve. The opthalmic nerve transmits information to the upper eyelid, the conjuctiva […]
