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This video is designed for my introductory A&P course to study the endocrine system. This tutorial will take you through the various endocrine organs, hormones produced, and effects at each tissue. Prolactin is one of the 5 hormones we are studying of the anterior pituitary. SHOW MORE
ACE Inhibitor Mechanisms. Angiotensin converting enzyme (ACE) inhibitors are agents used to relax blood vessels and lower blood pressure. They prevent an enzyme from producing angiotensin II, which narrows blood vessels and raises blood pressure, meaning the heart has to work harder to pump blood around the body.
Duodenal atresia, also known as duodenojejunal atresia, is the congenital absence or complete closure of a portion of the lumen of the duodenum. It causes increased levels of amniotic fluid during pregnancy (polyhydramnios) and intestinal obstruction in newborn babies.
Osteoarthritis is a degenerative joint disease that is caused by the chronic breakdown and eventual loss of cartilage within the joints. As the cartilage wears away, the bones that meet at the joint begin to rub against each other. This can cause extreme pain and can severely reduce movement and flexibility of the joint. Growths of bone, called bone spurs, can also form around the edges of the joint and cause pain. Joint swelling can also occur if the synovial membrane lining the joint becomes irritated, producing excess fluid that collects inside the joint. What Causes Osteoarthritis? More than half of the population age 65 or older have osteoarthritis in at least one joint. Osteoarthritis usually results from injury to a joint or from wear and tear over time. Heredity, lack of use, and being overweight also contribute to the development of osteoarthritis. Treating Osteoarthritis Treatment can include weight loss, physiotherapy, and medication. If the condition becomes severe and mobility is greatly reduced, hip replacement surgery may be necessary.
A circulatory anastomosis is a connection (an anastomosis) between two blood vessels, such as between arteries (arterio-arterial anastomosis), between veins (veno-venous anastomosis) or between an artery and a vein (arterio-venous anastomosis). An end artery (or terminal artery) is an artery that is the only supply of oxygenated blood to a portion of tissue. Examples of an end artery include the splenic artery that supplies the spleen and the renal artery that supplies the kidneys.
Temporal arteritis is a condition in which the temporal arteries, which supply blood to the head and brain, become inflamed or damaged. It is also known as cranial arteritis or giant cell arteritis. Although this condition usually occurs in the temporal arteries, it can occur in almost any medium to large artery in the body. The journal Arthritis & Rheumatology states that approximately 228,000 people in the United States are affected by temporal arteritis. According to the American College of Rheumatology, people over the age of 50 are more likely than younger people to develop the condition. Women are also more likely than men to have temporal arteritis. It is most prevalent in people of northern European or Scandinavian descent. Although the exact cause of the condition is unknown, it may be linked to the body’s autoimmune response. Also, excessive doses of antibiotics and certain severe infections have been linked to temporal arteritis. There’s no known prevention. However, once diagnosed, temporal arteritis can be treated to minimize complications.
http://crohnsulcerativecolitis.plus101.com/
----Crohn's Disease Symptoms Pain. Are you suffering from diarrhea that sometimes leaves you feeling that you've completely emptied your intestine from eveything you've eaten that week?
Have you seen bright red blood traces in your stool or on the toilet paper at least once?
Do you sometimes have abdominal cramps after your meals?
Do you at times feel so nauseous that food doesn't have any appeal to you?
Have you had at least one onset of unexplained low grade fever?
Do you joints sometimes feel itchy, sore or painful?
Did you ever notice red spots or blisters on your arms or legs?
Did you ever experience episodes of itchy and even painfull pink eye (conjuctivitis)?
Have you lost weight?
Do you have episodes of overwhelming fatigue?
Do you experience increased frequency of bowel movement?
Did you ever get up during the night to defecate?
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Throughout the body, there are several points at which blood vessels unite. The junctions are termed anastomoses. In the simplest sense, an anastomosis is any connection (made surgically or occurring naturally) between tube-like structures. Naturally occurring arterial anastomoses provide an alternative blood supply to target areas in cases where the primary arterial pathway is obstructed. They are most abundant in regions of the body where the blood supply may can be easily damaged or blocked (such as the joints or intestines). This article focuses on the arterial anastomotic networks of the upper limb.