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Fertilization and Implantation in human
Fertilization and Implantation in human samer kareem 3,168 Views • 3 years ago

Millions of sperms are deposited into the vagina during sexual intercourse. The sperms make their way through the cervix into the uterus and then on to the fallopian tubes. As they swim along this way their numbers decline. Only a few hundred sperm will get close to the egg. During the trip, sperm prepare themselves to meet the egg by subtle alterations of their heads and movement patterns. Once inside the fallopian tube, the sperm attracts the egg by releasing a chemical. The egg is surrounded by a protective covering called the zona pellucida, which allows only one sperm to penetrate it. Once inside the egg, the head of the fertilizing sperm releases its genetic contents, which fuses with the nucleus of the egg. Fertilisation is now complete. Sperm are able to survive for 2-3 days within the female's reproductive tract. The length of the time that a woman's egg can be fertilized by a man's sperm ranges from 12-24 hours.

Black Hairline Restoration Lowering by Hair Transplant Surgery
Black Hairline Restoration Lowering by Hair Transplant Surgery samer kareem 2,629 Views • 3 years ago

on bald hair loss man at 408-356-8600 by Dr. Diep with photos, of middle eastern man, Asian, Caucasian, Hispanic & Black, most advance hair treatment, treating male pattern baldness, bald head hair loss, receding hairline.

Intubation during General Anaesthesia 3D Animation
Intubation during General Anaesthesia 3D Animation Scott 39,257 Views • 3 years ago

Intubation during General Anaesthesia 3D Animation

Paget's Disease of Bone
Paget's Disease of Bone samer kareem 3,582 Views • 3 years ago

Paget's disease of bone disrupts your body's normal bone recycling process, in which old bone tissue is gradually replaced with new bone tissue. Over time, the affected bones may become fragile and misshapen. Paget's disease of bone most commonly occurs in the pelvis, skull, spine and legs.

Alligile Syndrome
Alligile Syndrome samer kareem 2,539 Views • 3 years ago

Alagille syndrome (AS) is an autosomal dominant disorder (OMIM 118450) associated with abnormalities of the liver, heart, skeleton, eye, and kidneys and a characteristic facial appearance. In 1973, Watson and Miller reported 9 cases of neonatal liver disease with familial pulmonary valvular stenosis.

Crushing of a bladder stone
Crushing of a bladder stone Mohamed Ibrahim 14,956 Views • 3 years ago

Endoscopic crushing of a bladder stone very interesting medical video

Radical Prostatectomy
Radical Prostatectomy Mohamed 26,399 Views • 3 years ago

This is an educational video for the prostate cancer patients and their families. Depending on the individual patient, a radical prostatectomy, might be a procedure that your urologist could recommend as treatment. Here is a brief demonstration of this procedure.

Removal of a large epidermal cyst in the chest
Removal of a large epidermal cyst in the chest hooda 41,081 Views • 3 years ago

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How osteoporosis develops
How osteoporosis develops samer kareem 13,102 Views • 3 years ago

Osteoporosis is a disease in which bones become brittle and fragile due to low bone mass and bone tissue loss. It's the most common type of bone disease, according to the National Institutes of Health (NIH), and increases your risk of fractures, particularly of the hips, spine, and wrists. Prevalence In the United States, nearly 54 million people ages 50 and older were living with osteoporosis or osteopenia (low bone mass ) in 2010, according to a 2014 article in the Journal of Bone and Mineral Research. More specifically, 10.2 million adults had osteoporosis, and 43.4 million adults had osteopenia, which puts a person at high risk for osteoporosis.

Digoxin mechanism of action
Digoxin mechanism of action samer kareem 4,196 Views • 3 years ago

Digoxin is used to treat heart failure, usually along with other medications. It is also used to treat a certain type of irregular heartbeat (chronic atrial fibrillation). Treating heart failure may help maintain your ability to walk and exercise and may improve the strength of your heart. Treating an irregular heartbeat can decrease the risk for blood clots, an effect that may reduce your risk for a heart attack or stroke.

Needle Aponeurotomy Dupuytren's Contracture
Needle Aponeurotomy Dupuytren's Contracture DrHouse 15,205 Views • 3 years ago

Needle fasciotomy (aponeurotomy) is usually a 15-Minute in-office procedure for Dupuytren's contracture. Performed under local anesthesia, in the office, by board-certified plastic surgeon Reza Momeni, MD. This is a minimally invasive treatment for Dupuytren's.

Treating Idiopathic Intracranial Hypertension
Treating Idiopathic Intracranial Hypertension samer kareem 1,526 Views • 3 years ago

What is idiopathic intracranial hypertension??? Idiopathic intracranial hypertension (IIH) is a disorder that results from an increase in the pressure of the Cerebro-Spinal Fluid (CSF) that cushions and protects the brain and spinal cord. The CSF is constantly produced in the brain and reabsorbed back into the bloodstream at a fairly constant rate. This allows the fluid pressure around the brain to remain constant. What are the symptoms of idiopathic intracranial hypertension? Headaches that are generally nonspecific in location, type and frequency and can be associated with nausea and vomiting. Pulsatile tinnitus is a rhythmic or pulsating ringing heard in one or both ears. Horizontal double vision can be a sign of pressure on the 6th cranial nerve(s). Nonspecific radiating pain in the arms or legs (radicular pain). Transient obscurations of vision (TOV), which are temporary dimming or complete blacking out of vision. Visual field defects. These defects can occur in the central as well as the peripheral vision. Loss of color vision. What causes idiopathic intracranial hypertension? The cause is usually not known. A common explanation for increased pressure is a problem with the reabsorption of this fluid back into the body, which causes the pressure to increase. Sometimes the cause is determined and is referred to as “secondary” intracranial hypertension.

Primary CNS Lymphoma
Primary CNS Lymphoma samer kareem 7,977 Views • 3 years ago

Lymphoma is a cancer that arises from the cells of the lymphatic system. In the brain, this type of cancer is called Primary CNS Lymphoma (PCNSL). Location. Lymphoma occurs most often in the cerebral hemisphere, but may also involve the cerebrospinal fluid, the eyes, or the spinal cord.

Bowel Obstruction
Bowel Obstruction samer kareem 1,904 Views • 3 years ago

A bowel obstruction happens when either your small or large intestine is partly or completely blocked. The blockage prevents food, fluids, and gas from moving through the intestines in the normal way. The blockage may cause severe pain that comes and goes. This topic covers a blockage caused by tumors, scar tissue, or twisting or narrowing of the intestines. It does not cover ileus, which most commonly happens after surgery on the belly (abdominal surgery). What causes a bowel obstruction? Tumors, scar tissue (adhesions), or twisting or narrowing of the intestines can cause a bowel obstruction. These are called mechanical obstructions . In the small intestine, scar tissue is most often the cause. Other causes include hernias and Crohn's disease, which can twist or narrow the intestine, and tumors, which can block the intestine. A blockage also can happen if one part of the intestine folds like a telescope into another part, which is called intussusception.

Warning Signs Of BREAST CANCER
Warning Signs Of BREAST CANCER samer kareem 1,643 Views • 3 years ago

ATTENTION! 5 Warning Signs Of BREAST CANCER That Many Women Ignore!

Shoulder
Shoulder samer kareem 7,229 Views • 3 years ago

The shoulder is one of the largest and most complex joints in the body. The shoulder joint is formed where the humerus (upper arm bone) fits into the scapula (shoulder blade), like a ball and socket. Other important bones in the shoulder include: The acromion is a bony projection off the scapula. The clavicle (collarbone) meets the acromion in the acromioclavicular joint. The coracoid process is a hook-like bony projection from the scapula.

Removing Steel Pipe Penetrated Man's Head
Removing Steel Pipe Penetrated Man's Head hooda 41,608 Views • 3 years ago

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Chest x-ray interpretation showing Tubes and lines
Chest x-ray interpretation showing Tubes and lines academyo 17,497 Views • 3 years ago

This video will describe how to check the positions of different tubes that may be inserted and need to be checked on CXRs.

Types of diabetic retinopathy
Types of diabetic retinopathy samer kareem 9,873 Views • 3 years ago

Diabetic retinopathy is classified into two types: Non-proliferative diabetic retinopathy (NPDR) is the early stage of the disease in which symptoms will be mild or nonexistent. In NPDR, the blood vessels in the retina are weakened. ... Proliferative diabetic retinopathy (PDR) is the more advanced form of the disease.

Murphy's Sign & Hernia Tests
Murphy's Sign & Hernia Tests DrPhil 144 Views • 3 years ago

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