Keratoplasty is the procedure whereby abnormal corneal tissue is replaced by a healthy donor cornea.

Embryonic cardiovascular system. ... The human arterial and venous systems develop from different embryonic areas. Aortic Arches. The aortic arches—or pharyngeal arch arteries—are a series of six, paired, embryological vascular structures that give rise to several major arteries .

If it gets more severe and causes symptoms, your low hemoglobin count may indicate you have anemia. A low hemoglobin count is generally defined as less than 13.5 grams of hemoglobin per deciliter (135 grams per liter) of blood for men and less than 12 grams per deciliter (120 grams per liter) for women.

Wilson's disease is a rare inherited disorder that causes too much copper to accumulate in your liver, brain and other vital organs. Symptoms typically begin between the ages of 12 and 23. Copper plays a key role in the development of healthy nerves, bones, collagen and the skin pigment melanin. Normally, copper is absorbed from your food, and any excess is excreted through bile — a substance produced in your liver.

X-linked adrenoleukodystrophy is a genetic disorder that occurs primarily in males. It mainly affects the nervous system and the adrenal glands, which are small glands located on top of each kidney. In this disorder, the fatty covering (myelin) that insulates nerves in the brain and spinal cord is prone to deterioration (demyelination), which reduces the ability of the nerves to relay information to the brain. In addition, damage to the outer layer of the adrenal glands (adrenal cortex) causes a shortage of certain hormones (adrenocortical insufficiency). Adrenocortical insufficiency may cause weakness, weight loss, skin changes, vomiting, and coma.

Medical Terminology

Multiple endocrine neoplasia is a group of disorders that affect the body's network of hormone-producing glands (the endocrine system). Hormones are chemical messengers that travel through the bloodstream and regulate the function of cells and tissues throughout the body. Multiple endocrine neoplasia typically involves tumors (neoplasia) in at least two endocrine glands; tumors can also develop in other organs and tissues. These growths can be noncancerous (benign) or cancerous (malignant). If the tumors become cancerous, the condition can be life-threatening.

Watch that video of Horrifying Creatures Found Living Inside Human Body

Force Does It Take To Break A Bone

Cataplexy is a sudden, temporary loss of muscle tone that can result in collapse. It is often caused by intense emotions, including laughter

new sepsis definitions

A growing number of patients having total knee replacement surgery are 55 or younger. Surgeons at Sunnybrook's Holland Centre perform more than 1,000 total knee replacements each year. Read more: http://sunnyview.sunnybrook.ca..../2011/11/snap-crackl

In Deep Vein Thrombosis, blood clot is able to reach the heart and from there it transport to the arteries of the lungs, where it may stuck in the...

Think you're supposed to tilt your head to the sky when you have a nosebleed? Not so fast. Follow these steps instead:

This system treats type 2 diabetes by promoting weight loss.

Bronchoscopy Procedure - See inside the lungs!

Traumatic Brain Injury (TBI) TBI is defined as an alteration in brain function, or other evidence of brain pathology, caused by an external force. Adopted by the Brain Injury Association Board of Directors in 2011. This definition is not intended as an exclusive statement of the population served by the Brain Injury Association of America. Acquired Brain Injury An acquired brain injury is an injury to the brain, which is not hereditary, congenital, degenerative, or induced by birth trauma. An acquired brain injury is an injury to the brain that has occurred after birth. There is sometimes confusion about what is considered an acquired brain injury. By definition, any traumatic brain injury (e.g. from a motor vehicle accident or assault) could be considered an acquired brain injury. In the field of brain injury, acquired brain injuries are typically considered any injury that is non traumatic. Examples of acquired brain injury include stroke, near drowning, hypoxic or anoxic brain injury, tumor, neurotoxins, electric shock or lightning strike.

Periods are considered to be one of the most taboo topics to talk about, but they can reveal a plethora of information when it comes to your health. Whether you last publicly learned about menstruation in fifth grade or during a junior high school sex ed class, it’s time to unravel what Aunt Flo and your hormonal health have to do with one another. Look before you flush not only when it comes to your urine or poop, but also your period, and find out the six things your monthly visitor can tell you about your health from what’s normal to what’s not at any age.

For more information please visit: https://www.yalemedicine.org/c....onditions/acl-injury

Serious injuries, by and large, cause a lot of swelling in the knee. Especially in younger patients. Now, someone could be arthritic and they overdo it going for a big long hike and they get some swelling the next day. But rapid onset of swelling, it's like hard to make out where your kneecap is, is a pretty big cardinal sign that there's something serious that's happened to your knee. Rapid onset swelling is usually due to blood in the joint. "A meniscus that really tears and flips in the front. You tear your quad or your patellar tendon, your kneecap dislocates, you tear a little blood vessel, your ACL tears, a piece of cartilage in bone gets knocked off and causes bleeding. So a lot of the really significant injuries, people get rapid onset swelling within three to four hours and they should seek attention There's always exceptions to rules, but if your knee looks like a grapefruit, you should go get it checked.