Most folks remember puberty – and not always in a good way. It can be an awkward stage of budding breasts, unwanted hair, acne and unexpected body odor. Puberty, when a child undergoes physical changes and becomes sexually mature, typically begins around age 8 in girls and age 9 in boys. But imagine, say, a 6- or 7-year-old undergoing such changes? Studies are showing that the onset of puberty for both boys and girls is occurring earlier and earlier, a phenomenon defined as precocious puberty. A study published in Pediatrics in 2010 found that among a population of 1,200 American girls, about 23 percent of African-Americans,15 percent of Latinas and 10 percent of Caucasian girls had begun puberty (marked by breast development) at age 7. In 2012, another study published in Pediatrics found that puberty in American boys – measured by testicular enlargement and pubic hair growth – was beginning six months to two years earlier than what research in previous decades had documented, particularly among African-American children.

The lymphatic system is a network of specialized vessels (lymph vessels) throughout the body whose purpose is to collect excess lymph fluid with proteins, lipids, and waste products from the tissues. This fluid is then carried to the lymph nodes, which filter waste products and contain infection-fighting cells called lymphocytes. The excess fluid in the lymph vessels is eventually returned to the bloodstream. When the lymph vessels are blocked or unable to carry lymph fluid away from the tissues, localized swelling (lymphedema) is the result.

Pseudo-exfoliation with small pupil

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Know About Cardiothoracic Surgery in 60 Seconds About what cardiothoracic surgery is, why it is done and what is the result of such surgery. A Major Session on #cardiothoracic #surgery at #Congress #2018HCC 2018 Healthcare and Cardiology Conference #BANGKOK http://cosmicseries.org/cardiology-conferences/

Recent researches shows that women with periodontal disease are more prone to deliver premature babies

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This video tutorial discusses an Introduction to Histology (study of tissues):
0:00​. Intro
0:35. Hierarchical organization of living matter
1:56​. H&E stains
3:00​. Epithelium overview (characteristics and classifying scheme)
- 9:12. Simple squamous epithelium
- 11:05. Simple cuboidal epithelium
- 12:20. Simple columnar epithelium
- 13:36. Stratified squamous epithelium
- 15:51. Urinary epithelium (transitional epithelium)
- 16:45. Pseudo-stratified ciliated columnar epithelium (respiratory epithelium)
18:55. Connective tissue overview (characteristics and classifying scheme)
- 21.14. Connective tissue proper (loose CT, dense irregular CT, dense regular CT, adipose tissue)
- 24:50. Cartilage (hyaline cartilage, elastic cartilage, fibrocartilage)
- 26:04. Bone (osteoblasts, osteocytes, osteoclasts, calcium ...)
- 27:34. Blood (RBC, WBC, platelet, plasma)
28:54. Muscle tissue (skeletal muscle, cardiac muscle, smooth muscle)
32:54. Nervous tissue (neurons and glial cells)
36:58​. In-a-Nutshell
37:07​. Acknowledgements

For a more detailed study of histology go to The Histology Wizard: https://www.youtube.com/channe....l/UCAeLLruy9RkUWaW_r

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What is patellofemoral pain, also referred to as runner’s knee? Check out the video to find out!

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Disclaimer: The information presented is not intended as medical advice or to be a substitute for medical counseling but is intended for entertainment purposes only. If you are experiencing pain, please seek the appropriate healthcare professional.

Treatment of bowel injury by IUD

Drainage of a maxillary Sinus pyocoele

People whose back or neck pain has not been relieved by back surgery or other treatments may have another option to consider: spinal cord stimulation. Around the world, some 14,000 patients undergo spinal cord stimulator implants each year. Spinal cord stimulation (SCS) delivers mild electrical stimulation to nerves along the spinal column, modifying or blocking nerve activity in a non-medicinal way to minimize the sensation of pain reaching the brain.

The Epley maneuver is a series of movements, normally carried out on a person by a doctor, to relieve the symptoms of BPPV. Research has found it to be an easy, safe, and effective treatment for the condition in both the long- and short-term. The Epley maneuver is sometimes called the particle repositioning maneuver or the canalith repositioning maneuver. These names are used because the maneuver involves a series of movements that help to reposition crystals in a person's ear that may cause feelings of dizziness. Repositioning the crystals helps to relieve the person's dizziness and nausea.

Tooth colored composite fillings are chemically bonded to teeth. For this reason, the placement of white fillings does not always require numbing the area being restored. Numbing (anesthetizing) the area is often required if tooth decay has progressed beneath the enamel layer and into the underlying dentin layer which surrounds the nerve of the tooth. Once decay is removed, the tooth is cleaned and a primer (weak acid) is applied to the area being restored. The primer opens pores in the enamel and dentin. A bonding agent is then flowed into the open pores and cured. Curing prepares the bonding agent to adhere to the tooth colored filling material. The filling material is then placed inside the tooth. After shaping the tooth colored filling material to resemble the natural anatomy of your tooth it is hardened by curing with a strong curing light. Once the white filling hardens, your bite will be checked to make sure your teeth fit together properly. If the tooth filling extends into the space between your teeth your dentist will also make sure you can floss between your teeth properly. Adjustments will be made if necessary followed by smoothing and polishing of your new filling..

Common causes of the knee pain
Knee pain is very common and in this video we will present the most common problems that can cause pain in the knee. (Patella) itself, which is in front of the knee, or from the tendons that are attached to the kneecap (patellar tendon and quadricep tendon). One of the most common problems is patellar chondromalacia which is chronic pain due to the softening of the cartilage beneath the kneecap. The cartilage of the kneecap will have some erosions, defects, or holes from mild to complete inside the joint (exactly in the back of the kneecap).
• Pain in the front of the knee
• Occurs more in young people
• Becomes worse from climbing up stairs and going downstairs
Treatment is usually nonsteroidal anti-inflammatory medication, physical therapy, and surgery is very rare. Also in front of the kneecap, the patient may get pain due to prepatellar bursitis.
When there is prepatellar bursitis, the patient will see that the swelling, the inflammation, and the pain is located over the front of the kneecap. The bursa becomes inflamed and fills with fluid at the top of the knee, causing pain, swelling, tenderness and a lump in that area on top of the kneecap. If the pain is in front of the knee but below or above the patella, this may indicate that the patient has tendonitis. Patellar tendonitis is an overuse condition that often occurs in athletes who perform repetitive jumping activities. Patellar tendonitis is a knee pain that is associated with focal patellar tendon tenderness and it is usually activity related. It is located below the kneecap and is called "jumper's knee". Patellar tendonitis affects approximately 20% of jumping athletes. There will be tenderness to palpation at the distal pole of the patella in extension and not in flexion. Quadriceps inflexibility, atrophy and hamstring tightness are predisposing factors for this condition. Treatment is rest, anti-inflammatory medication, stretching and strengthening of the hamstrings and quadriceps. Use an eccentric exercise program. The early stages of patellar tendonitis will respond well to nonoperative treatment. Another important cause of knee pain is a meniscal tear. The meniscus is the cushion that protects the cartilage in the knee. Injury will cause pain on the medial or the lateral side of the knee exactly at the level of the joint. The patient will complain of a history of locking, instability and swelling of the knee. McMurray test will be positive. A painful pop or click is obtained as the knee is brought from flexion to extension with either internal or external rotation of the knee. Arthritis of the knee Knee arthritis is very common. The cartilage cells die with age and its repair response decreases in the joint collapses with increased breakdown of the framework of the cartilage. The patient will have progressive blurring away of the cartilage of the joint with decreased joint space as seen on x-rays. Another source of pain is the Baker's cyst. The cyst is in the back of the knee between the semimembranosus yes and the medial gastrocnemius muscles. Another important source of knee pain is a ligament injury. Here is a normal knee without a ligament injury. Here you can see from the front, you can see the lateral and medial collateral ligament. You can see the ACL and PCL from the side view. These ligaments are usually injured as a result of a sports activity. Here is an example of a sports knee injury. Here is an example of the medial collateral ligament injury. This is the most commonly injury knee ligament injury to this ligament is on the inner part of the knee. Here is an example of an injury of the anterior cruciate ligament. It involves a valgus stress to the knee. Lachman test is usually positive, and MRI is diagnostic. Another important cause of knee pain is iliotibial band syndrome of the knee. Inflammation of the thickening of the iliotibial band results from excessive friction as the iliotibial band slides over the lateral femoral condyle. The iliotibial band is a thick band of fascia that extends along the lateral thigh from the iliac crest to the knee. And as the knee moves, the IT band was repeatedly shifted forwards and backwards across the lateral femoral condyle. The patient will complain of swelling, tenderness, and crepitus over the lateral femoral condyle. The condition occurs in the ITB S occurs in runners, cyclist and athletes that require repeated knee flexion and extension. The pain may be reproduced by doing a single-leg squat. The Ober's test is used to at assess tightness of the iliotibial band. MRI may show edema in the area of the ITB. Treatment is usually nonoperative with rest and ice, physical therapy, with stretching, proprioception, and improvement in neuromuscular coordination. Training modification and injections may be helpful. Surgery is a last resort. Surgical excision of the scarred inflamed part of the iliotibial band.

Heart failure, sometimes known as congestive heart failure, occurs when your heart muscle doesn't pump blood as well as it should. Certain conditions, such as narrowed arteries in your heart (coronary artery disease) or high blood pressure, gradually leave your heart too weak or stiff to fill and pump efficiently.

Prompted by the hormone prolactin, the alveoli take proteins, sugars, and fat from your blood supply and make breast milk. A network of cells surrounding the alveoli squeeze the glands and push the milk out into the ductules, which lead to a bigger duct.

In human anatomy, the radial artery is the main blood vessel, with oxygenated blood, of the lateral aspect of the forearm.

The jaw thrust is a method of opening the airway of a patient. The airway is very important in first aid! It consists of the structures in the back of the throat and upper neck. A patient who is unconscious is not able to maintain their own airway as it can become blocked by the tongue (see picture). Normally, first aid courses teach the head tilt – chin lift technique to open an airway. However, this airway manoeuvre involves significant movement of the patient’s neck. Therefore if there is any suspicion of a spinal (neck) injury it may cause further damage.

Anatomy of Back Muscles and Spinal Cord