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The region is conventionally divided into three divisions. CA3a is the part of the cell band that is most distant from the dentate (and closest to CA1). CA3b is the middle part of the band nearest to the fimbria and fornix connection. CA3c is nearest to the dentate, inserting into the hilus.
Hilum of the liver. In human anatomy, the hilum (/ ˈ h aɪ l ə m /; pl.: hila), sometimes formerly called a hilus (/ ˈ h aɪ l ə s /; pl.: hili), is a depression or fissure where structures such as blood vessels and nerves enter an organ. Examples include: Hilum of kidney, admits the renal artery, vein, ureter, and nerves
The spleen is the largest collection of lymphoid tissue in the body. It is normally palpable in preterm infants, in 30% of normal, full-term neonates, and in 5% to 10% of infants and toddlers. A spleen easily palpable below the costal margin in any child over the age of three to four years should be considered abnormal until proven otherwise.
The cords of Billroth (also known as splenic cords or red pulp cords) are found in the red pulp of the spleen between the sinusoids, consisting of fibrils and connective tissue cells with a large population of monocytes and macrophages.
As shown in the figure, the structure itself is curved and subfields or regions are defined along the curve, from CA4 through CA1 (only CA3 and CA1 are labeled). The CA regions are also structured depthwise in clearly defined strata (or layers): Stratum oriens (str. oriens) is the next layer superficial to the alveus.
The splenic lymph nodes are found at the splenic hilum and in relation to the tail of the pancreas (pancreaticolienal lymph nodes). [1] [2] Their afferents are derived from the stomach, spleen, and pancreas. The splenic lymph nodes empty into the suprapancreatic, infrapancreatic and omental lymph nodes, which then drain to the coeliac nodes and ...
The hilum is an indent on the concave surface of the lymph node where lymphatic vessels leave and blood vessels enter and leave. [5] Lymph enters the convex side of a lymph node through multiple afferent lymphatic vessels, and from there, it flows into a series of sinuses.
Splenic infarct appears as a wedge-shaped area of splenic tissue with the apex pointed toward the hilum and the base of the splenic capsule. As the infarction matures, the affected tissue may normalize, liquefy or become contracted or scarred. Abdominal ultrasound has also been used to detect splenic infarction. Ultrasound findings of the ...