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...
Article
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.