Items tagged “anatomy”
348 results found
Diagnosis not applicable
Published 19 Oct 2014
Anatomy of the talus
Diagnosis not applicable
Published 04 Nov 2014
The talus (plural: tali 4), also known as the astragalus 4, is a tarsal bone in the hindfoot that articulates with the tibia, fibula, calcaneus, and navicular bones. It has no muscular attachments and around 60% of its surface is covered by articular cartilage. Gross anatomy The talus has bee...
The calcaneus, also referred to as the calcaneum, (plural: calcanei or calcanea) is the largest tarsal bone and the major bone in the hindfoot. It articulates with the talus superiorly and the cuboid anteriorly and shares a joint space with the talonavicular joint, appropriately called the taloc...
Patent foramen ovale
A patent foramen ovale (PFO) is a type of atrial septal defect in which there is channel-like communication between the atria through an unfused fossa ovale. Gross anatomy The foramen ovale in the interatrial septum normally develops into the fossa ovalis when the flaps of the atrial septa pri...
The eustachian valve (also known as the "valve of the inferior vena cava") is a ridge of variable thickness in the inferior right atrium. It is a remnant of a fetal structure that directed incoming oxygenated blood to the foramen ovale and away from the right atrium. Incomplete regression of ...
Cervical spine ligaments
Cervical spine ligaments ordered from anterior to posterior include: anterior longitudinal ligament (ALL) anterior atlanto-occipital membrane apical ligament alar ligaments (paired) cruciate ligament of the atlas longitudinal band: joins the body of the axis to the foramen magnum transver...
The flexor retinaculum (also known as the transverse carpal ligament) is a rectangular-shaped fibrous band located at the ventral aspect of the wrist. Gross anatomy The flexor retinaculum encloses and forms the roof of the carpal tunnel. The ulna aspect of the flexor retinaculum forms the floo...
Arterial supply to the foot
Arterial supply to the foot can be divided into plantar and dorsal components. Plantar arterial supply Posterior tibial artery gives off its calcaneal branch then divides into the medial and lateral plantar arteries Medial plantar artery branch of the posterior tibial artery smaller cal...
The triquetrum (also known as os triquetrum or - historically - as the triangular bone) is one of the carpal bones and forms part of the proximal carpal row. Gross anatomy Osteology The triquetrum is wedge-shaped carpal bone located between the lunate and the pisiform. It has an oval facet fo...
Anatomy encompasses the structure, position, and interrelation of any parts of an organism. Radiopaedia.org aims to eventually cover the entire human anatomy, particularly in relation to the practice of radiology. All articles use standard anatomic conventional nomenclature and the anatomic posi...
Normal ileocecal junction
Diagnosis not applicable
Published 27 Jan 2015
The anterior commissure (AC) is a transversely oriented commissural white matter tract that connects the two cerebral hemispheres along the midline. It is a very important anatomical landmark that connects different parts of the limbic system on both sides and plays a role in the interhemispheri...
Agenesis of the right hepatic lobe
Agenesis of the right hepatic lobe is a rare variation in liver anatomy. Radiographic features absence of the right hepatic lobe absence of right hepatic artery, right portal vein, and right hepatic biliary system compensatory hypertrophy of the left hepatic lobe and caudate lobe possible r...
Agenesis of the left hepatic lobe
Agenesis of the left hepatic lobe is a rare variation in liver anatomy. It is clinically asymptomatic and discovered during imaging or surgery. Radiographic features absence of the left hepatic lobe (left of the falciform ligament, Couinaud segments 2 and 3) absence of left hepatic artery, le...
The oblique fissures (also called the major fissures or greater fissures) are bilateral structures in both lungs separating the lung lobes. Gross anatomy Right oblique fissure The superior part of the right oblique fissure separates the right upper lobe from the right lower lobe and the infe...
The ulna (plural: ulnae) is one of the two long bones of the forearm, located medially in the supinated anatomic position. It has a larger proximal end and tapers to a smaller distal end (opposite to the radius). Gross anatomy Osteology Prominent features of the ulna include: proximal: olecr...
The cloaca is the terminal portion of the hindgut. It is an embryonic structure (weeks 4-7) in which the distal ends of the gastrointestinal tract and urogenital system share a common channel. The most distal aspect of the cloaca is termed the cloacal membrane. The cloaca, or portions of it, ca...
The conus artery is a small early branch off the right coronary artery (RCA) circulation. Gross anatomy Supply The artery has a variable distribution, but usually supplies a region of the anterior interventricular septum and the conus of the main pulmonary artery (hence its name). Variant an...
The lenticulostriate arteries, also known as anterolateral central arteries, are a collection of small perforating arteries arising from the anterior part of the circle of Willis and supplying the basal ganglia. They are divided into: medial lenticulostriate arteries lateral lenticulostriate...