The rectal venous plexus (or hemorrhoidal plexus) surrounds the rectum and communicates in front with the vesical venous plexus in the male and the uterovaginal plexus in the female.A free […]
List of articles in "Anatomical Structure" category - Page 227
Sternoclavicular articulation
The sternoclavicular articulation is structurally classed as a synovial double-plane joint and functionally classed as a diarthrotic joint. It is composed of two portions separated by an articular disc which […]
Coracoclavicular ligament
The Coracoclavicular Ligament serves to connect the clavicle with the coracoid process of the scapula. It does not properly belong to the acromioclavicular joint articulation but is usually described with […]
Transpyloric plane
An upper transverse line also known as Addison’s Plane located halfway between the jugular notch and the upper border of the pubic symphysis. It is also said to lie roughly […]
Intertubercular plane
A lower transverse line midway between the upper transverse and the upper border of the pubic symphysis; this is termed the intertubercular plane (or transtubercular) since it practically corresponds to […]
Anterior lacrimal crest
The anterior lacrimal crest is a bony projection in the skull. It is composed of the lateral margin of the lacrimal fossa. It is continuous below with the orbital margin; […]
Posterior lacrimal crest
The lateral or orbital surface of the lacrimal bone is divided by a vertical ridge the posterior lacrimal crest into two parts. In front of this crest is a longitudinal […]
Hiatus for greater petrosal nerve
A shallow groove sometimes double leading lateralward and backward to an oblique opening the hiatus for greater petrosal nerve (or hiatus of the facial canal) for the passage of the […]
Ethmoidal spine
The superior surface of the body of the sphenoid bone (Fig. 145) presents in front a prominent spine the ethmoidal spine for articulation with the cribriform plate of the ethmoid; […]
Anterior nasal aperture
The anterior nasal aperture (piriform or pyriform aperture) is a heart- or pear-shaped opening in the skull.Its long axis is vertical and narrow end upward; in the recent state it […]