Items tagged “stub”

1,307 results found
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Brainstem nuclei

The brainstem nuclei are the nuclei in the brainstem. These include: cranial nerve nuclei red nucleus substantia nigra
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Corpus striatum

The corpus striatum is a group of basal ganglia that includes the caudate nucleus, putamen, globus pallidus, and nucleus accumbens. Terminology According to the Terminologia Neuroanatomica, the corpus striatum is synonymous with the basal nuclei. Some anatomists also include the subthalamic nu...
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Lentiform nucleus

The lentiform nucleus is a collective name given to the putamen and globus pallidus, both of which are nuclei in the basal ganglia.  Radiographic features In axial section, the globus pallidus sits medially to the putamen and together, they appear lens-like in shape - hence the name, lentiform...
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Extreme capsule

The extreme capsule is a series of white matter tracts in the brain that run between the claustrum and insular cortex.
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Stria medullaris (thalamus)

The stria medullaris is a fiber bundle containing efferent fibers from the septal nuclei, lateral preoptico-hypothalamic region, and anterior thalamic nuclei to the habenula. It forms a horizontal ridge on the medial surface of the thalamus.
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Foramen of Magendie

The foramen of Magendie, also known as median aperture, is one of the foramina in the ventricular system and links the fourth ventricle and the cisterna magna. It is one of the three sites that cerebrospinal fluid (CSF) can leave the fourth ventricle and enter the subarachnoid space. The two oth...
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Obex

The obex is the most caudal point within the fourth ventricle, as it narrows and communicates with the central canal of the spinal cord. It is one of four routes via which cerebrospinal fluid may flow from the fourth ventricle (the others being the median and two lateral apertures). The obex oc...
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Lateral apertures (of Luschka)

The lateral apertures (of Luschka) (also known as the foramina of Luschka) are two of the foramina in the ventricular system and link the fourth ventricle to the cerebellopontine cistern. Together with the median aperture (of Magendie) they comprise two of the three sites that CSF can leave the ...
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Hereditary connective tissue disease

Hereditary connective tissue diseases are an enlarging group of connective tissue diseases that have a degree of inheritance risk. They include:  Marfan syndrome: genetic disease causing abnormal fibrillin Ehlers-Danlos syndrome: progressive deterioration of collagen and affects joints, heart ...
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Carotid bifurcation

The carotid bifurcation is the point at which the common carotid artery terminates. As it does so, it forms the internal and external carotid arteries which go on to supply the head and neck. The height of the carotid bifurcation is noted to be highly variable in the literature. Most frequently...
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Superior laryngeal artery

The superior laryngeal artery accompanies the internal laryngeal branch of the superior laryngeal nerve, beneath the thyrohyoid muscle. It pierces the thyrohyoid membrane, and supplies the muscles, mucous membrane, and glands of the larynx, anastomosing with the branch from the opposite side. ...
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Lingual artery

The lingual artery is one of the branches of the external carotid artery and supplies the oral floor and tongue. Summary origin: branch of the external carotid artery at the level of the C3 course: towards hyoid bone, then loops down towards the tongue branches: branches to the posterior ton...
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Finger in glove sign (lung)

The finger in glove sign can be seen on either a chest radiograph or CT chest and refers to the characteristic sign of a bronchocele.  Terminology The same appearance has also been referred to as: Mickey Mouse appearance rabbit ear appearance toothpaste-shaped opacity V-shaped opacities Y...
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Glomus body

The glomus body is a component of the dermis that is involved in thermoregulation.  Gross anatomy It consists of a specialized arteriovenous anastomosis surrounded by a connective tissue capsule. They are most numerous in the fingers and toes and exist to shunt blood from the skin surface when...
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Prostate peripheral zone T2 hypointensity

Prostate peripheral zone T2 hypointensity is a common finding in pelvic MRIs that needs to be evaluated. A prostate MRI is usually performed with a multiparametric technique (mpMRI) to differentiate prostate cancer from more benign pathologies. mpMRI includes T2 weighted images, dynamic contrast...
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Renal fascia

The renal fascia is a dense, elastic connective tissue sheath that envelops each kidney and adrenal gland together with a layer of surrounding perirenal fat forming the perirenal space. It is a multi-laminated structure which is fused posteromedially with the muscular fasciae of the psoas and q...
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Posterior pararenal space

The posterior pararenal space is the smallest and most clinically insignificant portion of the retroperitoneum. Gross anatomy It is filled with fat, blood vessels, and lymphatics, but contains no major organs. Boundaries posteriorly: bound by transversalis fascia anteriorly: bound by poster...
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Pathological fracture

Pathological fractures are fractures that occur in abnormal bone and occur spontaneously or following minor trauma that would not otherwise fracture biomechanically normal bone. Terminology The term pathological fracture is usually reserved for tumors, either benign or malignant, although it h...
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Right lower lobe consolidation

Right lower lobe consolidation refers to consolidation in part (incomplete) or all (complete) of the right lower lobe. Pathology Consolidation refers to the alveolar airspaces being filled with fluid (exudate/transudate/blood), cells (inflammatory), tissue, or other material. The list of caus...
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Haustral markings

Haustral markings are the radiological appearance of the haustral folds within the colon. Disappearance of the haustral folds results in the lead pipe appearance of ulcerative colitis.

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