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Breast cancer is a malignant tumor that develops from the cells of
the breast. It is the most common type of cancer among women in
the United States. It is most often curable when found early. The
normal breast consists of three main components: the lobules
(milk-producing glands), the ducts (thin tubes that connect the
lobules to the nipple) and the stroma (fatty tissue and ligaments
surrounding the ducts and lobules, blood vessels, and lymphatic
vessels). About 80% of breast cancers start in the ducts.
In this animation it depicts an artery with cholesterol plaque (the yellowish area) which is blocking most of the inside of this artery. Then small cells called platelets become clumped together and cause the red blood cells to form a clot. This is what causes a HEART ATTACK.
Tension pneumothorax develops when a lung or chest wall injury is such that it allows air into the pleural space but not out of it (a one-way valve). As a result, air accumulates and compresses the lung, eventually shifting the mediastinum, compressing the contralateral lung, and increasing intrathoracic pressure enough to decrease venous return to the heart, causing shock. These effects can develop rapidly, particularly in patients undergoing positive pressure ventilation.
In this episode of Crash Course Anatomy & Physiology, Hank gives you a brief history of histology and introduces you to the different types and functions of your body's tissues.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
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Chapters:
Introduction 00:00
Nervous, Muscle, Epithelial & Connective Tissues 1:23
History of Histology 2:07
Nervous Tissue Forms the Nervous System 5:17
Muscle Tissue Facilitates All Your Movements 7:00
Identifying Samples 9:03
Review 9:48
Credits 10:22
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Epidural hematoma (EDH) is a traumatic accumulation of blood between the inner table of the skull and the stripped-off dural membrane. EDH results from traumatic head injury, usually with an associated skull fracture and arterial laceration.The inciting event often is a focused blow to the head, such as that produced by a hammer or baseball bat. In 85-95% of patients, this type of trauma results in an overlying fracture of the skull. Blood vessels in close proximity to the fracture are the sources of the hemorrhage in the formation of an epidural hematoma. Because the underlying brain has usually been minimally injured, prognosis is excellent if treated aggressively. Outcome from surgical decompression and repair is related directly to patient's preoperative neurologic condition. [1]
For more videos, please visit:
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Dr. Fizan Abdullah is head of the Division of Pediatric Surgery and vice chair of the Department of Surgery at Ann & Robert H. Lurie Children's Hospital of Chicago. His special interests include Chest wall deformities, pectus excavatum, abdominal wall defects, neonatal surgery, pulmonary and upper airway malformations, congenital diaphragmatic hernia, esophageal and gastrointestinal anomalies, hernia repair, tissue engineering, extracorporeal membrane oxygenation (ECMO), surgical safety protocols and surgical infections.
Learn more at www.luriechildrens.org
Prinzmetal's or Prinzmetal angina (/ˈprɪntsmɛtəl/, sounds like "prints metal") (also known as variant angina, vasospastic angina (VSA), angina inversa, or coronary vessel spasm) is a syndrome typically consisting of angina (cardiac chest pain) at rest that occurs in cycles.
When placement of a urethral catheter is contraindicated or unsuccessful, percutaneous suprapubic urinary bladder catheterization is a commonly performed procedure to relieve urinary retention. [1, 2] This topic describes the Catheter over needle technique. The Seldinger technique is described in the Clinical Procedures topic Suprapubic Aspiration.
Vatche, Minassian, MD, MPH, Chief of Urogynecology, and Sarah Cohen, MD, MPH, Director of the Minimally Invasive Gynecologic Surgery Fellowship Program at Brigham and Women’s Hospital, perform a laparoscopic burch colposuspension, a procedure used to correct stress urinary incontinence.
Stress urinary incontinence is one of the most common types of incontinence and is characterized by urinary leakage during physical activities including coughing, sneezing, exercising, lifting, and laughing. As the condition progresses, it can become severe enough to happen with simple acts such as bending and walking. This condition is due to an anatomic weakness of the bladder neck which typically maintains the seal of urine during activity. Stress incontinence can result from a variety of conditions including vaginal childbirth, aging, menopause and obesity. As this is an anatomic condition, primary treatment may involve pelvic floor exercises and/or minimally invasive surgery.
Learn more about treatment for stress urinary incontinence:
Division of Urogynecology: http://www.brighamandwomens.or....g/Departments_and_Se
Division of Minimally Invasive Gynecologic Surgery: http://www.brighamandwomens.or....g/Departments_and_Se
A flail chest occurs when a segment of the thoracic cage is separated from the rest of the chest wall. This is usually defined as at least two fractures per rib (producing a free segment), in at least two ribs. A segment of the chest wall that is flail is unable to contribute to lung expansion. Large flail segments will involve a much greater proportion of the chest wall and may extend bilaterally or involve the sternum. In these cases the disruption of normal pulmonary mechanics may be large enough to require mechanical ventilation.
It flattens the natural curve of the spine, which can lead to lower back pain. Sleeping all night with the head turned to one side also strains the neck. If this is the preferred position, try using pillows to gradually train the body to sleep on one side
Stress-related mucosal disease (SRMD) is an acute, erosive gastritis representing conditions ranging from stress-related injury to stress ulcers (1, 2). Stress-related injury is superficial mucosal damage that presents primarily as erosions, whereas stress ulcers are deep, focal mucosal damage penetrating the submucosa with high risk for gastrointestinal bleeding (2, 3). Mucosal damage has been reported to occur during the first 24 hours of hospital admission in 75% to 100% of intensive care unit (ICU) patients (4, 5). Clinically important gastrointestinal bleeding can cause hemodynamic instability and increase the need for red blood cell transfusions (1). Significant bleeding may also increase the length of stay in the ICU and mortality (1).
Histology lab video reviewing the structure and cells of thin skin, thick skin, and skin sensory structures on digital histology slides. This video is a part of our Histology Video Course (https://youtube.com/playlist?l....ist=PLnr1l7WuQdDynxT
All Histology Videos: https://youtube.com/playlist?l....ist=PLnr1l7WuQdDynxT
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