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The superior sagittal sinus (also known as the superior longitudinal sinus), within the human head, is an unpaired area along the attached margin of falx cerebri. It allows blood to drain from the lateral aspects of anterior cerebral hemispheres to the confluence of sinuses.
Allergic bronchopulmonary aspergillosis (ABPA) is a condition characterised by an exaggerated response of the immune system (a hypersensitivity response) to the fungus Aspergillus (most commonly Aspergillus fumigatus). It occurs most often in patients with asthma or cystic fibrosis.
Cerclage is indicated in a patient with a history of painless cervical dilation and a second trimester loss. It is also indicated in a patient with a history of preterm birth and a short cervix found on ultrasound between 16-24 weeks gestation. Cerclage placement occurs after the first trimester in case the pregnancy is genetically abnormal and would likely result in a first trimester loss.
This syndrome was previously known as reflex sympathetic dystrophy, algodystrophy, causalgia, Sudeck atrophy, transient osteoporosis, and acute atrophy of bone. Usually occurring after an injury, CRPS presents with pain out of proportion to the injury, temperature change, edema, and abnormal skin color. Type I CRPS (90% of CRPS cases) occurs without a definable nerve lesion, while type II occurs with a definable nerve lesion. The pathogenesis is likely due to an injury causing increased sensitivity to sympathetic nerves, an abnormal response to and sensation of pain, and increased neuropeptide release causing burning pain to light touch (allodynia).
Eyelid surgery, or blepharoplasty, is a surgical procedure to improve the appearance of the eyelids. Surgery can be performed on either the upper and lower lids, or both. Whether you want to improve your appearance or are experiencing functional problems with your eyelids, eyelid surgery can rejuvenate the area surrounding your eyes.
For education, Microsoft HoloLens will help make incredible leaps forward in productivity, collaboration, and innovation. See how Microsoft HoloLens transforms the way we teach anatomy and our understanding of the human body as we help to prepare the next generation of doctors.
Magnetic Resonance Imaging (MRI) "sees" inside the body by mapping the position of water molecules, which exist at different densities in different types of tissue. Watch the video above for a sample of some impressive MRI images of the human body in action.