Magdalenian stone tools include small geometrically shaped implements (e.g., triangles, semilunar blades) probably set into bone or antler handles for use, burins (a sort of chisel), scrapers, borers, backed bladelets, and shouldered and leaf-shaped projectile points.
The upper end of the ulna presents a large C-shaped notch the semilunar, or trochlear, notch which articulates with the trochlea of the humerus (upper arm bone) to form the elbow joint.
Typical MCD findings with radiography include an indistinct and/or deformed contour of the medial coronoid process; an irregular/reduced bone opacity of the medial coronoid process; sclerosis of the distal section of the semilunar notch; and loss of trabecular pattern [ 5, 10, 11].
Paired semilunar valves within the collecting channels determine the direction of flow.
The semilunar valves were at similar, caudad levels, and there was malposition of the great arteries.
"The semilunar valves work like a dream, catching the water as sails catch wind, closing fast and preventing any leakage.
Curve, bone, bone, curve.
Cell populations present in human semilunar valves have not been investigated thoroughly.
The results are displayed by the pointers in the semilunar figures.
Biparietal diameter, femur length, cardiovascular dimensions, and Doppler velocities through atrioventricular and semilunar valves and the umbilical artery were measured.
Statolith formation and increment in Carybdea rastoni Haacke, 1886 (Scyphozoa: Cubomedusae): evidence of synchronization with semilunar rhythms.
