Items tagged “snippet”

52 results found
Article

Ionizing radiation

Ionizing radiation is the term given to forms of radiation that are energetic enough to displace orbiting electrons from the atoms in the absorbing medium, thus forming positive ions. The process of ionization is the principal means by which ionizing radiations dissipate their energy in matter a...
Article

Thoracoepigastric vein

The thoracoepigastric vein provides a communication between the superficial epigastric vein and the lateral thoracic vein as it ascends superficially on the anterolateral chest and abdominal wall. It, therefore, drains into both the superior vena cava via the axillary vein and the inferior vena ...
Article

Tympanosquamous fissure

The tympanosquamous fissure separates the tympanic part of the temporal bone from the squamous part. It is parallel and anterior to the bony external auditory canal and divides medially into the petrotympanic fissure and petrosquamous fissure.
Article

Abrodil

Abrodil (marketed as Skiodan in the US) was a water-based iodinated contrast medium introduced for clinical use in 1930 3. It was developed by Bronner, Hecht and Schueller in Germany. Chemically, Abrodil is the sodium salt of monoiodomethanesulfonic acid. It was initially employed for intraveno...
Article

Sclera

The sclera (plural: scleras or sclerae) is the fibrous, opaque white, coat of the eye. It functions to protect the intra-ocular contents.  Summary location: posterior fifth-sixths of the eyeball blood supply: ciliary arteries innervation: ciliary nerves relations: anteriorly continuous wit...
Article

Adductor minimus muscle

The adductor minimus is a small, variably present muscle in the medial compartment of the thigh.   Summary origin: ischiopubic ramus insertion: medial lip of linea aspera, adductor tubercle  action: adducts, extends and laterally rotates thigh at hip joint arterial supply: medial femoral ci...
Article

Intertrochanteric line

The intertrochanteric line, not to be confused with the intertrochanteric crest, is a ridge on the femur that is located on the anterior aspect of the junction of the femoral neck and shaft. It traverses between the greater and lesser trochanters and distally is continuous with the spiral line o...
Article

Default mode network

The default mode network (DMN), is a group of specific brain regions that are functionally-connected. The regions become active in the resting state (not doing any active task), and inactive when someone is engaged in any attention-demanding tasks 1; this phenomenon has been termed task-induced ...
Article

McConnell’s capsular arteries

McConnell’s capsular arteries (MCCA) are one of the three major branches of the cavernous segment of the internal carotid artery (ICA). Gross anatomy They arise from the medial wall of the cavernous ICA distal to both the meningohypophyseal trunk and the inferolateral trunk. The McConnell’s c...
Article

Gantzer muscle

The Gantzer muscle is anomalous head of the flexor pollicis longus, an accessory muscle of the forearm. Some authors 1 suggest that this muscle is present in ~70% of limbs and should be considered a normal anatomical pattern rather than an anatomical variation. Summary origin: deep surface of ...
Article

Holdsworth fracture

Holdsworth fracture is the eponymous name for an unstable thoracolumbar junction fracture involving the vertebral body and articular processes as well as posterior ligamentous complex rupture 1,2.
Article

Carotid tubercle

The carotid tubercle is a commonly used term referring to the paired anterior tubercles of the transverse processes of the sixth cervical vertebrae 1. The carotid tubercle serves as an important landmark with respect to performing regional anesthesia such as a brachial plexus and cervical plexus...
Article

Kugel's artery

An uncommon variant of coronary arterial anatomy, Kugel's artery was originally described as an anastomotic communication between branches of the proximal left circumflex artery with the distal right coronary artery. These coronary trunks often communicate indirectly through atrial anastomotic n...
Article

Artery of Bernasconi and Cassinari

The artery of Bernasconi and Cassinari, also known as medial or marginal tentorial artery (of Bernasconi–Cassinari), commonly arises from the cavernous segment of the internal carotid artery. Gross anatomy The artery of Bernasconi and Cassinari is ~2 cm long and is an important branch of the m...
Article

Suboccipital triangle

The suboccipital triangles are a paired triangular-shaped space formed by the configuration of three paired muscles in the posterior neck between the occipital bone, C1 and C2. Gross Anatomy The suboccipital triangle has an inferomedial pointing apex (pointing towards the nuchal ligament) form...
Article

Intraparotid lymph nodes

The intraparotid lymph nodes are groups of cervical lymph nodes located within the parenchyma of each of the parotid glands. Gross anatomy Among the salivary glands, only the parotid glands have their own internal lymph nodes due to the late encapsulation of the parotids during embryologic dev...
Article

Pelvis (hip surveillance)

Hip surveillance radiographs are part of a concerted effort to monitor and enable early detection of hip displacement in patients with cerebral palsy or neuromuscular disorders. The radiographs consist of a modified AP pelvis in which the patient's legs are in a neutral position, with the patell...
Article

Pediatric pelvis (AP view)

The AP pelvis view is a routine view for pediatric patients to examine the hip joints, proximal femora, iliac crests and pelvic ring. The complications of pelvic pathology in pediatrics can significantly affect the child's future, highlighting the importance of proper patient positioning 1. Pat...
Article

Superb microvascular imaging (ultrasound)

Superb microvascular imaging (SMI) is a recently developed ultrasound imaging technique that aims to visualize low velocity and small diameter blood vessel flow. Unlike conventional color and power Doppler imaging, SMI can suppress noise caused by motion artifacts without removing the weak signa...
Article

Medial patellar plica

The medial patellar plica is one of the synovial plicae of the knee. Gross anatomy It is a fold of synovium and thought to represent embryologic remnants. It is considered the most symptomatic of all plicae. Subtypes The Sakakibara arthroscopic classification scheme is one used for the clas...

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