Top videos

How your ear works
How your ear works samer kareem 16,300 Views • 2 years ago

Sound waves enter the ear canal and make the ear drum vibrate. This action moves the tiny chain of bones (ossicles – malleus, incus, stapes) in the middle ear. The last bone in this chain 'knocks' on the membrane window of the cochlea and makes the fluid in the cochlea move.

Psychological Erectile Dysfunction
Psychological Erectile Dysfunction samer kareem 1,692 Views • 2 years ago

Erectile dysfunction (ED) is the inability to get or keep an erection firm enough for sexual function. It’s a common sexual problem, affecting as many as 30 million men in the United States. Most cases of ED have a physical cause, such as heart disease, diabetes, and obesity. Lifestyle choices like smoking and drinking excessive amounts of alcohol can also lead to ED. But for some men, psychological issues are the root of the problem.

Markle Test for Peritonitis
Markle Test for Peritonitis samer kareem 12,075 Views • 2 years ago

Markle Test (heel jar test) for Peritonitis

Diagnosis, Treatment, and Prevention of Syphilis
Diagnosis, Treatment, and Prevention of Syphilis samer kareem 4,872 Views • 2 years ago

Learn what tests can be used to screen and diagnose syphilis as well as how to treat and prevent the infection.

Primary biliary cholangitis
Primary biliary cholangitis samer kareem 1,688 Views • 2 years ago

Primary biliary cholangitis (PBC), formerly known as primary biliary cirrhosis, is a chronic liver disease resulting from progressive destruction of the bile ducts in the liver – called the intrahepatic bile ducts. Bile produced in your liver travels via these ducts to your small intestine where it aids in the digestion of fat and fat-soluble vitamins (A, D, E and K). When the ducts are destroyed, bile builds up in the liver contributing to inflammation and scarring (fibrosis). Eventually this can lead to cirrhosis and its associated complications, as scar tissue replaces healthy liver tissue and liver function becomes increasingly impaired.

What is Root Canal?
What is Root Canal? samer kareem 8,011 Views • 2 years ago

Has your dentist or endodontist told you that you need root canal treatment? If so, you're not alone. Millions of teeth are treated and saved each year with root canal, or endodontic, treatment. Remember, root canal treatment doesn't cause pain, it relieves it. Watch our videos below to learn more! Inside the tooth, under the white enamel and a hard layer called the dentin, is a soft tissue called the pulp. The pulp contains blood vessels, nerves and connective tissue, and helps to grow the root of your tooth during development. In a fully developed tooth, the tooth can survive without the pulp because the tooth continues to be nourished by the tissues surrounding it.

Humerus Fracture
Humerus Fracture samer kareem 5,243 Views • 2 years ago

Distal Humerus Fractures of the Elbow. A distal humerus fracture is a break in the lower end of the upper arm bone (humerus), one of the three bones that come together to form the elbow joint. A fracture in this area can be very painful and make elbow motion difficult or impossible.

Lupus Treatment
Lupus Treatment samer kareem 1,392 Views • 2 years ago

Lupus Treatment | Causes Of Lupus Flares

Norepinephrine
Norepinephrine samer kareem 1,783 Views • 2 years ago

Norepinephrine is synthesized from dopamine by dopamine β-hydroxylase.[7] It is released from the adrenal medulla into the blood as a hormone, and is also a neurotransmitter in the central nervous system and sympathetic nervous system where it is released from noradrenergic neurons.

Wound Closure Near Eyebrow
Wound Closure Near Eyebrow samer kareem 6,737 Views • 2 years ago

Demonstration of Burke-Baier wound closure forceps on simulated wound near eyebrow.

Deep Tendon Reflexes Exam
Deep Tendon Reflexes Exam samer kareem 6,828 Views • 2 years ago

In a normal person, when a muscle tendon is tapped briskly, the muscle immediately contracts due to a two-neuron reflex arc involving the spinal or brainstem segment that innervates the muscle. The afferent neuron whose cell body lies in a dorsal root ganglion innervates the muscle or Golgi tendon organ associated with the muscles; the efferent neuron is an alpha motoneuron in the anterior horn of the cord. The cerebral cortex and a number of brainstem nuclei exert influence over the sensory input of the muscle spindles by means of the gamma motoneurons that are located in the anterior horn; these neurons supply a set of muscle fibers that control the length of the muscle spindle itself.

Animation of Scarless Varicose Vein Treatment
Animation of Scarless Varicose Vein Treatment Scott 2,015 Views • 2 years ago

Animation of Scarless Varicose Vein Treatment No Knife Endovenous Laser

Lumbar Fusion of L5-S1 Surgery
Lumbar Fusion of L5-S1 Surgery samer kareem 3,947 Views • 2 years ago

At each level of the spine, there is a disc space in the front and paired facet joints in the back. Working together, these structures define a motion segment (Fig. 1A). Back pain may re­sult when injury or degenerative changes allow abnormal movement of the vertebrae to rub against one another, known as an unstable motion segment (Fig. 1B). Two vertebrae need to be fused to stop the motion at one segment. For example, an L4-L5 fusion is a one-level spinal fusion (Fig. 1C). A two-level fusion joins three vertebrae together and so on.

Temporomandibular joint dysfunction (TMJD)
Temporomandibular joint dysfunction (TMJD) samer kareem 1,763 Views • 2 years ago

Your temporomandibular joint is a hinge that connects your jaw to the temporal bones of your skull, which are in front of each ear. It lets you move your jaw up and down and side to side, so you can talk, chew, and yawn. Problems with your jaw and the muscles in your face that control it are known as temporomandibular disorders (TMD). But you may hear it wrongly called TMJ, after the joint.

Swallowable Balloon help to loss weight
Swallowable Balloon help to loss weight samer kareem 1,861 Views • 2 years ago

Interesting method to help obese patients lose weight.

New Tool to fix Ingrown Toenail
New Tool to fix Ingrown Toenail samer kareem 1,318 Views • 2 years ago

Wow! amazing tool. The disturbingly fascincating fix of ingrown toenail

Terrifying Sinus Infection
Terrifying Sinus Infection samer kareem 1,805 Views • 2 years ago

Terrifying Sinus Infection - Disturbing - Must Watch

Skin Grafting  Procedure
Skin Grafting Procedure samer kareem 19,374 Views • 2 years ago

This surgery is usually done while you are under general anesthesia. That means you will be asleep and pain-free. Healthy skin is taken from a place on your body called the donor site. Most people who are having a skin graft have a split-thickness skin graft. This takes the two top layers of skin from the donor site (the epidermis) and the layer under the epidermis (the dermis). The donor site can be any area of the body. Most times, it is an area that is hidden by clothes, such as the buttock or inner thigh. The graft is carefully spread on the bare area where it is being transplanted. It is held in place either by gentle pressure from a well-padded dressing that covers it, or by staples or a few small stitches. The donor-site area is covered with a sterile dressing for 3 to 5 days. People with deeper tissue loss may need a full-thickness skin graft. This requires an entire thickness of skin from the donor site, not just the top two layers. A full-thickness skin graft is a more complicated procedure. Common donor sites for full-thickness skin grafts include the chest wall, back, or abdominal wall.

ROBOTIC ASSISTED RADICAL NEPHRECTOMY
ROBOTIC ASSISTED RADICAL NEPHRECTOMY samer kareem 1,183 Views • 2 years ago

ROBOTIC ASSISTED RADICAL NEPHRECTOMY

Future Baby
Future Baby samer kareem 10,665 Views • 2 years ago

Future Baby

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