Your knee has four major ligaments. The knee ligament, called the anterior cruciate ligament, or ACL, connects the thigh bone, or femur, to the shin bone, or tibia. An ACL that is severely torn, may b Категория: Science & Technology Время: 00:00:33 Теги:медицинамедицинская анимацияврачболезниразрыв связок
The normal heartbeat begins with electrical impulses from the sinoatrial, or SA node, a group of specialized pacemaker cells in the right atrium. These impulses cause the atria to contract and push bl Категория: Science & Technology Время: 00:00:38.250 Теги:медицинамедицинская анимацияврачболезниаритмия
Acting like a pump, the human heart is a muscle that contracts and relaxes each time it beats. There are four heart compartments, or chambers. The upper two are the atria, and the lower two are ventri Категория: Science & Technology Время: 00:00:47.250 Теги:медицинамедицинская анимацияврачболезни
When your childs immune system detects a harmful substance or infection, it responds to protect your childs body. Allergies occur when your immune system reacts to a harmless substance as if it were h Категория: Science & Technology Время: 00:00:57.750 Теги:медицинамедицинская анимацияврачболезниаллергияаллергеныастма
Normal blood clotting seals blood vessels damaged by an injury to help stop blood loss, but sometimes blood clots block blood and oxygen from flowing through a blood vessel. An embolus is a blood clot Категория: Science & Technology Время: 00:00:30 Теги:медицинамедицинская анимацияврачболезнитромбозтромбоэмболия
Medical Animation. Treatment of ear infections in children A middle ear infection is caused by swelling in the tube between the middle ear and a throat, called the Eustachian tube. Swelling traps flui Категория: Science & Technology Время: 00:00:41.250 Теги:медицинамедицинская анимацияушные инфекции
When scientists studied the composition of sprinters leg muscles, they found more specialized fibers, which are capable of contracting ten times faster than other muscle fibers. In a typical healthy a Категория: Science & Technology Время: 00:00:29.250 Теги:медицинамедицинская анимацияврачболезнимышцы
