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From its posterior border, there extends backward a thin and pointed triangular eminence, more or less elongated in different subjects, the ischial spine, origin of the gemellus superior muscle. Above the spine is a large notch, the greater sciatic notch ; Below the spine is a smaller notch, the lesser sciatic notch .
Cutaneous innervation of the upper limbs is the nerve supply to areas of the skin of the upper limbs (including the arm, forearm, and hand) which are supplied by specific cutaneous nerves. Modern texts are in agreement about which areas of the skin are served by which cutaneous nerves, but there are minor variations in some of the details.
Human left hand, anterior (palmar) view. }} Technical features. This map uses {{Image label}} to put floating clickable texts onto image.
The obturator foramen is situated inferior and somewhat anterior to the acetabulum.It is bounded by the pubis bone and the ischium: superiorly by the (grooved obturator surface) of the superior ramus of pubis, inferiorly by the ramus of ischium, and laterally by (the anterior edge of) the body of ischium (including by the margin of the acetabulum).
The ischial tuberosity (or tuberosity of the ischium, tuber ischiadicum), also known colloquially as the sit bones or sitz bones, [1] or as a pair the sitting bones, [2] is a large posterior bony protuberance on the superior ramus of the ischium. It marks the lateral boundary of the pelvic outlet.
The following outline is provided as an overview of and topical guide to human anatomy: . Human anatomy is the scientific study of the morphology of the adult human.It is subdivided into gross anatomy and microscopic anatomy.
There are three bones of the os coxae (hip bone) that come together to form the acetabulum.Contributing a little more than two-fifths of the structure is the ischium, which provides lower and side boundaries to the acetabulum.
Photos and diagrams showing hand and foot bones of specimen SAM-PK-K1332 Although most researchers now consider Heterodontosaurus a bipedal runner, [ 45 ] some earlier studies proposed a partial or fully quadrupedal locomotion.