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Microvilli
Microvilli samer kareem 2,051 Views • 2 years ago

Cells may have slender extensions of the cell membrane to form cilia or the smaller extensions called microvilli. The microscopic microvilli effectively increase the surface area of the cell and are useful for absorption and secretion functions. A dramatic example is the human small intestine. The tissue has small fingerlike extensions called villi which are collections of cells, and those cells have many microvilli to even further increase the available surface area for the digestion process. According to Audesirk & Audesirk, this can give an effective surface area of about 250 square meters for absorption.

Dental Implant
Dental Implant samer kareem 7,673 Views • 2 years ago

If you are self-conscious because you have missing teeth, wear dentures that are uncomfortable or don't want to have good tooth structure removed to make a bridge, talk to your dentist to see if dental implants are an option for you. Dental implants are a popular and effective way to replace missing teeth and are designed to blend in with your other teeth. They are an excellent long-term option for restoring your smile. In fact, the development and use of implants is one of the biggest advances in dentistry in the past 40 years. Dental implants are made up of titanium and other materials that are compatible with the human body. They are posts that are surgically placed in the upper or lower jaw, where they function as a sturdy anchor for replacement teeth.

Foods that do NOT affect the blood sugar
Foods that do NOT affect the blood sugar samer kareem 3,847 Views • 2 years ago

Such foods include carrots, eggplant, cauliflower, green beans, broccoli, peppers, onions, lettuce, zucchini, tomatoes, peanuts and walnuts. These foods are generally safe for you to eat at each meal without spiking your blood sugar.

Endoscopic Retrograde Cholangiopancreatography
Endoscopic Retrograde Cholangiopancreatography samer kareem 8,180 Views • 2 years ago

Endoscopic retrograde cholangiopancreatography, or ERCP, is a specialized technique used to study the bile ducts, pancreatic duct and gallbladder. Ducts are drainage routes; the drainage channels from the liver are called bile or biliary ducts. The pancreatic duct is the drainage channel from the pancreas.

Intelligent People Have Fewer Friends, Here's Why...
Intelligent People Have Fewer Friends, Here's Why... samer kareem 1,775 Views • 2 years ago

Intelligent People Have Fewer Friends, Here's Why...

Motion Sickness
Motion Sickness samer kareem 1,886 Views • 2 years ago

You get motion sickness when one part of your balance-sensing system (your inner ear , eyes, and sensory nerves) senses that your body is moving, but the other parts don't. For example, if you are in the cabin of a moving ship, your inner ear may sense the motion of waves, but your eyes don't see any movement.

Bone Pain Causes
Bone Pain Causes samer kareem 4,559 Views • 2 years ago

Bone pain: Pain is the most common sign of bone cancer, and may become more noticeable as the tumor grows. Bone pain can cause a dull or deep ache in a bone or bone region (e.g., back, pelvis, legs, ribs, arms). Early on, the pain may only occur at night, or when you are active.

The syndrome of inappropriate antidiuretic hormone
The syndrome of inappropriate antidiuretic hormone samer kareem 5,155 Views • 2 years ago

The syndrome of inappropriate antidiuretic hormone (ADH) secretion (SIADH) is defined by the hyponatremia and hypo-osmolality resulting from inappropriate, continued secretion or action of the hormone despite normal or increased plasma volume, which results in impaired water excretion.

Hypothalamus and Pituitary
Hypothalamus and Pituitary samer kareem 4,489 Views • 2 years ago

The pituitary gland is often portrayed as the "master gland" of the body. Such praise is justified in the sense that the anterior and posterior pituitary secrete a battery of hormones that collectively influence all cells and affect virtually all physiologic processes. The pituitary gland may be king, but the power behind the throne is clearly the hypothalamus. As alluded to in the last section, some of the neurons within the hypothalamus - neurosecretory neurons - secrete hormones that strictly control secretion of hormones from the anterior pituitary. The hypothalamic hormones are referred to as releasing hormones and inhibiting hormones, reflecting their influence on anterior pituitary hormones.

Adrenoleukodystrophy
Adrenoleukodystrophy samer kareem 4,159 Views • 2 years ago

Adrenoleukodystrophy, or ALD, is a deadly genetic disease that affects 1 in 18 000 people. It most severely affects boys and men. This brain disorder destroys myelin, the protective sheath that surrounds the brain's neurons -- the nerve cells that allow us to think and to control our muscles.

Respiratory Anatomy
Respiratory Anatomy samer kareem 1,359 Views • 2 years ago

There are 3 major parts of the respiratory system: the airway, the lungs, and the muscles of respiration. The airway, which includes the nose, mouth, pharynx, larynx, trachea, bronchi, and bronchioles, carries air between the lungs and the body's exterior.

Medical Marijuana and Parkinson's
Medical Marijuana and Parkinson's samer kareem 16,614 Views • 2 years ago

See the effects of cannabis first hand, unedited, on Parkinson's tremor dyskinesia, and voice.

Wernicke-Korsakoff Syndrome
Wernicke-Korsakoff Syndrome samer kareem 5,072 Views • 2 years ago

-Korsakoff's syndrome is a common and preventable sequel of Wernicke's encephalopathy. Thiamine, if given during the stage of Wernicke's encephalopathy, can prevent the onset of Korsakoff's psychosis. The administration of glucose prior to thiamine can precipitate Korsakoff's syndrome, as seen in this case. In such patients, brain MRI frequently shows abnormal enhancement of the mammillary bodies & thallamus

Vertebrobasilar Insufficiency
Vertebrobasilar Insufficiency samer kareem 3,260 Views • 2 years ago

Vertebrobasilar insufficiency is typically secondary to emboli, thrombi, or arterial dissection. The labyrinth and brainstem are commonly affected, and symptoms may include vertigo, dizziness, dysarthria, diplopia, and numbness.

Encephalopathy
Encephalopathy samer kareem 6,999 Views • 2 years ago

Encephalopathy means disorder or disease of the brain. In modern usage, encephalopathy does not refer to a single disease, but rather to a syndrome of global brain dysfunction; this syndrome can have many different organic and inorganic causes.

Arthroscopic ACL Reconstruction
Arthroscopic ACL Reconstruction samer kareem 9,845 Views • 2 years ago

Detailed video of Arthroscopic ACL Reconstruction using four stranded hamstring graft

Connective tissue graft from the Palate
Connective tissue graft from the Palate samer kareem 19,249 Views • 2 years ago

Simple technique to harvest Connective tissue graft from the Palate.

Transthoracic Echocardiogram General
Transthoracic Echocardiogram General samer kareem 6,791 Views • 2 years ago

Probes, landmarks, and general windows to obtain transthoracic echo views

The Importance of Correcting your Overbite
The Importance of Correcting your Overbite samer kareem 9,851 Views • 2 years ago

Overbite is a type or malocclusion or an overjet. A lot of people don’t realize that they have an overbite, as they believe their condition is not serious enough to obtain dental attention. This could also for the reason that other cases of overbites are so minor to be noticeable. However, others have serious overbite condition that can make the person’s top jaw look much larger or the bottom jaw significantly smaller. But one thing to remember, overbite can actually cause some dental problems. This condition can change the structure of your face and affect the way you talk. The most popular form of overbite correction is orthodontic treatment. Your dentist will fix the overbite with the help of rubber bands and dental braces to pull the upper teeth back. Tooth extraction may be suggested if overcrowding complicates the overbite so as to provide room for your front teeth. In extreme conditions, overbite surgery may be needed to place your jaw backwards or forwards. Furthermore, if severe overbite is not corrected during adulthood, the teeth may continue to shift and trigger dental issues such as gum disease.

Long Head Biceps
Long Head Biceps samer kareem 3,133 Views • 2 years ago

Biceps tendonitis, also called bicipital tendonitis, is inflammation in the main tendon that attaches the top of the biceps muscle to the shoulder. The most common cause is overuse from certain types of work or sports activities.

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