Items tagged “anatomy”

340 results found
Article

Bill bar

Bill bar is a bony anatomical landmark that divides the superior compartment of the internal acoustic meatus into an anterior and posterior compartment. Anterior to Bill bar, in the anterior superior quadrant, are the facial nerve (CN VII) and nervus intermedius, and posterior to it, in the post...
Article

Buford complex

Buford complex is a congenital glenoid labrum variant where the anterosuperior labrum is absent in the 1-3 o'clock position and the middle glenohumeral ligament is thickened (cord-like). It originates directly from the superior labrum adjacent to the bicipital labral complex and inserts onto the...
Article

Cavum vergae

The cavum vergae (CV), along with the cavum septum pellucidum (CSP) that lies immediately anterior to it, is a persistence of the embryological fluid-filled space between the leaflets of the septum pellucidum and is a common anatomical variant.  Terminology The cavum vergae has also been refer...
Article

Cranial nerves

The cranial nerves are the 12 paired sets of nerves that arise from the cerebrum or brainstem and leave the central nervous system through cranial foramina rather than through the spine. The cranial nerves are numbered one to twelve, always using the Roman numerals, I to XII. Most have cranial n...
Article

Internal auditory canal nerves (mnemonic)

A mnemonic to remember the relative position of nerves inside the internal auditory canal (IAC) is: Seven up, Coke down Anatomy Four nerves pass through the IAC: facial nerve (CN VII) three components of the vestibulocochlear nerve (CN VIII) cochlear nerve (CN VIIIc) superior vestibular n...
Article

Trochlear nerve

The trochlear nerve is the fourth cranial nerve and is the motor nerve of the superior oblique muscle of the eye.  It can be divided into four parts: nucleus and an intraparenchymal portion cisternal portion cavernous sinus portion orbital portion Gross anatomy Nucleus and intraparenchy...
Article

Vertebral anomalies

The vertebral column is affected by a range of anatomical variants of the body and/or neural arch as well as accessory ossicles. Knowledge of basic vertebral anatomy and ossification is essential for describing and understanding the range of anomalies. Variant anatomy Vertebral body hemiverte...
Case

Normal aortic arch (diagram)

 Diagnosis not applicable
Assoc Prof Frank Gaillard
Published 07 May 2008
29% complete
Diagram
Case

Normal internal acoustic meatus

 Diagnosis not applicable
Assoc Prof Frank Gaillard
Published 07 May 2008
36% complete
MRI
Article

Dura mater

The dura mater, also known as the pachymeninx (plural: pachymeninges), is the tough outer layer of the meninges that surrounds the central nervous system and is pierced by the cranial nerves, the internal carotid arteries and the vertebral arteries.  Intracranially, it is formed by two layers: ...
Article

Liver

The liver is the largest abdominal organ. It plays a major role in metabolism and has a number of functions, including glycogen storage, decomposition of red blood cells, plasma protein synthesis, hormone production, and detoxification. It is one of the very few organs that has the ability to re...
Article

Medulla oblongata

The medulla oblongata (or simply the medulla) is the most caudal part of the brainstem between the pons superiorly and spinal cord inferiorly. It is the transition from the spinal cord to the brain. The medulla contains the vital autonomic cardiovascular and respiratory centers controlling hear...
Article

Intervertebral disc

Intervertebral discs are located between the vertebral bodies of C2/3 to L5/S1, totalling 23 in the conventional spine. Together they account for approximately 25% of the total height of the vertebral column. This decreases with age as disc height is lost. They represent the hydro-mechanical sy...
Case

Haller cells - extensive

 Diagnosis almost certain
Assoc Prof Frank Gaillard
Published 17 Jul 2009
39% complete
CT
Article

Müllerian duct anomalies

Müllerian duct anomalies (MDAs) are congenital abnormalities that occur when the Müllerian ducts (paramesonephric ducts) do not develop correctly. This may be as a result of complete agenesis, defective vertical or lateral fusion, or resorption failure. Epidemiology MDAs are estimated to occur...
Case

Superior aortic pericardial recess

 Diagnosis certain
Assoc Prof Frank Gaillard
Published 08 Oct 2009
77% complete
CT
Article

Thymus

The thymus (plural: thymi) is a T-cell producing lymphoid organ in the anterior mediastinum that plays a role in the development of the immune system, particular the maturation of T-cells. It typically has a retrosternal location and hence can mimic retrosternal pathology. Gross anatomy It is ...
Case

Femur (illustration)

 Diagnosis not applicable
Assoc Prof Frank Gaillard
Published 09 Nov 2009
29% complete
Diagram
Case

Glenoid - Gray's anatomy illustration

 Diagnosis not applicable
Mr Gray's Illustrations
Published 27 Feb 2010
41% complete
Diagram
Article

Right coronary artery

The right coronary artery (RCA) is one of the two main coronary arteries that supply the heart with oxygenated blood. Gross anatomy Origin The right coronary artery (RCA) ostium arises from the right sinus of Valsalva, found between the aortic valve annulus and the sinotubular junction.  Co...

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