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The lacuna are situated between the lamellae, and consist of a number of oblong spaces. In an ordinary microscopic section, viewed by transmitted light, they appear as fusiform opaque spots. Each lacuna is occupied during life by a branched cell, termed an osteocyte, bone-cell or bone-corpuscle.
The vascular lacuna (Latin: lacuna vasorum (retroinguinalis)) is the medial compartment beneath the inguinal ligament. [1] It is separated from the lateral muscular lacuna by the iliopectineal arch. [1] [2] It gives passage to the femoral vessels, [1] lymph vessels and lymph nodes. The lacunar ligament can be a site of entrapment for femoral ...
Helcogramma lacuna (H. lacuna), a species of fish in the genus Helcogramma; Mallomonas lacuna (M. lacuna), a species of heterokont algae; Lacuna Island, Antarctica; Jessie Lacuna (born 1993), a Filipino swimmer; The Lacuna, a 2009 novel by Barbara Kingsolver; Lacuna, Inc., a fictional company in the 2004 film Eternal Sunshine of the Spotless Mind
The muscular lacuna (Latin: lacuna musculorum) is the lateral compartment of the thigh beneath the inguinal ligament. It is separated from the medial vascular lacuna by the iliopectineal arch . It is occupied/traversed by the iliopsoas muscle , and femoral nerve . [ 1 ]
Bone canaliculi are microscopic canals between the lacunae of ossified bone. The radiating processes of the osteocytes (called filopodia) project into these canals. These cytoplasmic processes are joined together by gap junctions. Osteocytes do not entirely fill up the canaliculi.
Hyaline cartilage is the most common kind of cartilage in the human body. [2] It is primarily composed of type II collagen and proteoglycans. [2] Hyaline cartilage is located in the trachea, nose, epiphyseal plate, sternum, and ribs.
In male anatomy, the lacuna magna (also called Guérin's sinus) is the largest of several recesses in the roof of the navicular fossa of the male urethra. Structure
The roof of the fossa is especially dilated, forming a lacuna; medical instruments being inserted into the male urethra should initially be directed towards the floor of the fossa [1] so as not to get snagged at the fossa.