Schrader valves, seen on mountain bikes, kidsâ bikes and all types of casual riding bikes, are the same valve type you will see on automobile tires. The valve body is shorter than that of a Presta, and the depressible pin sits inside the valve stem rather than on top of it.
Papilledema refers to swelling of the optic disc from increased intracranial pressure (ICP)]. It must be distinguished from optic disc swelling from other causes which is simply termed optic disc edema. Papilledema must also be distinguished from pseudo-papilledema such as optic disc drusen. Since the root cause of papilledema is increased intracranial pressure (ICP) this is an alarming sign which may presage such entities as brain tumor, CNS inflammation, or idiopathic intracranial hypertension (IIH). Etiology
papillary. pertaining to a papilla; having the characteristics of a papilla. papillary duct. urine passes from the collecting tubules into the papillary ducts as the last section of the renal tubular system. papillary necrosis. necrosis of the renal papilla. See also infectious pancreatic necrosis of fish. papillary squirting. a feature of seborrheic dermatitis, zinc-responsive dermatoses; the superficial papillae are edematous and contain dilated vessels, the overlying epidermis is edematous and parakeratototic. papillary sulcus. gustatory glands open into a sulcus in the mouth.