dict.md logo
Choose languages of interest
Add further languages:
Add all languages
Cranial Nerve Diseases definition: Disorders of one or more of the twelve cranial nerves. With the exception of the optic and olfactory nerves, this includes disorders of the brain stem nuclei from which the cranial nerves originate or terminate.
Cranial Nerves definition: Twelve pairs of nerves that carry general afferent, visceral afferent, special afferent, somatic efferent, and autonomic efferent fibers.
cranial nerve definition: twelve pairs of nerves that carry general afferent, visceral afferent, special afferent, somatic efferent, and autonomic efferent fibers.
Cranial nerve definition: Neural tree organ which is continuous with the brain. Examples: Trochlear nerve, facial nerve.
Cranial Nerve definition: Any of the 12 paired nerves that originate in the brain stem.
Cranial Sinuses definition: Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).
Cranial Sutures definition: A type of fibrous joint between bones of the head.
Craniosynostoses definition: Premature closure of one or more sutures of the skull.
craniosynostosis definition: premature closure of one or more sutures of the skull.
Headache definition: The symptom of PAIN in the cranial region. It may be an isolated benign occurrence or manifestation of a wide variety of HEADACHE DISORDERS.
headache definition: pain in the cranial region that may occur as an isolated and benign symptom or as a manifestation of a wide variety of conditions.
Headache definition: Pain in various parts of the head, not confined to the area of distribution of any nerve.
Olfactory Nerve definition: The 1st cranial nerve. The olfactory nerve conveys the sense of smell. It is formed by the axons of OLFACTORY RECEPTOR NEURONS which project from the olfactory epithelium (in the nasal epithelium) to the OLFACTORY BULB.
olfactory nerve definition: first cranial nerve; conveys the sense of smell; it is formed by the axons of olfactory receptor neurons which project from the olfactory epithelium (in the nasal epithelium) to the olfactory bulb.
Olfactory nerve definition: Segment of neural tree organ which is continuous with the olfactory epithelium and an olfactory bulb.
Set of olfactory nerves definition: Set of nerves that is continuous with the olfactory bulb and the olfactory bulb.
Pneumocephalus definition: Presence of air or gas within the intracranial cavity (e.g., epidural space, subdural space, intracerebral, etc.) which may result from traumatic injuries, fistulous tract formation, erosions of the skull from NEOPLASMS or infection, NEUROSURGICAL PROCEDURES, and other conditions.
Skull definition: The SKELETON of the HEAD including the FACIAL BONES and the bones enclosing the BRAIN.
Skull definition: Subdivision of skeletal system which consists of the skeleton of the head and its joints.
skull definition: bony part of the head including the facial bones and the bones enclosing the brain.
Skull definition: Subdivision of skeletal system which consists of the skeleton of the head and its joints.
SKULL definition: The bones that form the head, made up of the bones of the braincase and face. (NCI)
Skull definition: The bones that form the head, made up of the bones of the braincase and face.
Trephining definition: The removal of a circular disk of the cranium. It is performed with a trephine, a small circular saw with a center pin mounted on a hollow metal shaft to which is attached a transverse handle. (Random House Unabridged Dictionary, 2d ed)
Cranial Irradiation definition: The exposure of the head to roentgen rays or other forms of radioactivity for therapeutic or preventive purposes.
Skull Base definition: The inferior region of the skull consisting of an internal (cerebral), and an external (basilar) surface.
Burs, Surgical, Bone, Cranial definition: Bone surgical burs designed to excavate the cranium and adjacent areas, frequently to open holes in the cranium. These burs typically consist of a shank made of steel or tungsten carbide with a well-differentiated working head in a variety of sizes and shapes (e.g., round, cylinder, inverted cone) on the distal end; a tapered, notched, or elongated proximal end to fit into the rotary device; and a neck that connects the shank to the working part. Cranial burs are used mainly in neurosurgical procedures (e.g., craniotomies) involving the brain; they are usually intended for reuse after sterilization.
Perforators, Cranial, Automatic definition: Perforators designed for automatic or semiautomatic cutting of circular sections of the skull (i.e., cranium). These instruments consist of two coaxial drills, a drive shank that connects to a powered (electric or pneumatic) handpiece, and a built-in clutch mechanism. The inner drill extends slightly beyond the outer drill in such a way that when the inner drill penetrates the inner table of the skull, the clutch mechanism disengages the cutters from the drive shank, preventing penetration or nicking of the membrane that contains the cerebrospinal fluid and protecting the cortex (dura mater). Automatic cranial perforators are used to make holes to alleviate intracranial pressure or to obtain cerebrospinal fluid samples. They are also used to drill perforations that define the border of a cranial bone flap; a side-cut craniotome is used to complete a beveled cut between adjacent drills completing the bone flap in procedures such as excision of tumors and treatment of cerebral aneurysms. Cranial perforators are available as reusable or disposable units; some are designed for use with specific handpieces.
Cephalad definition: Forwards; towards the head or anterior extremity of the body.
Cranial definition: Of or relating to the cranium.
superior colliculus definition: either of the superior (rostral) pair of rounded eminences symmetrically located in the tectum of the mesencephalon, containing reflex centers for visual sensations.
Superior Colliculi definition: The anterior pair of the quadrigeminal bodies which contain the centers for visual function.
Cranial Cavity definition: The atrium that is formed by the bones of the skull and containing the brain.
Orthoses, Head definition: Orthoses used to correct some deformities of the head (e.g., positional plagiocephaly). These orthoses are often composed of polypropylene, styrene, or polyethylene foam formed in the shape of a headband or helmet that applies gentle pressure to the most protuberant areas of the patient's skull. Head orthoses are used to correct deformities in infants and young children that are not related to premature bone union (i.e., nonsynostotic deformations) such as asymmetries in the cranial vault, skullbase, and face.
ORTHOSIS, CRANIAL definition: A cranial orthosis is a device that is intended for medical purposes to apply pressure to prominent regions of an infant's cranium in order to improve cranial symmetry and/or shape in infants from 3 to 18 months of age, with moderate to severe nonsynostotic positional plagiocephaly, including infants with plagiocephalic-, brachycephalic-, and scaphocephalic-shaped heads.
Osteopathy in the Cranial Field definition: 1. A system of diagnosis and treatment by an osteopathic practitioner using the primary respiratory mechanism and balanced membranous tension. 2. Refers to the system of diagnosis and treatment first described by William G. Sutherland, DO. 3. Title of reference work by Harold Magoun, Sr, DO.
Cranial Concept definition: Concept devised by William Garner Sutherland. It states that there is: 1. Inherent Motility of Brain and Spinal Cord. 2. Fluctuation of Cerebrospinal Fluid. 3. Mobility of Intracranial and Intraspinal Membranes. 4. Articular Mobility of Cranial Bones, and 5. Involuntary Mobility of Sacrum Between Ilia.
temporal arteritis definition: subacute, granulomatous arteritis involving the external carotid arteries, especially the temporal artery; occurs in elderly persons and may be manifested by constitutional symptoms, particularly severe headache, and sometimes sudden unilateral blindness; shares many of the symptoms of polymyalgia rheumatica.
Cranial Fontanelles definition: Any of six membrane-covered openings between the CRANIAL SUTURES in the incompletely ossified skull of the fetus or newborn infant. The fontanelles normally close sometime after birth.
kranial definition: [1] Anatomie: kopfwärts gelegen oder kopfwärts orientiert [2] Anatomie, ohne Steigerung: zum Kopf gehörig