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linea aspera attachments mnemonic

linea aspera attachments mnemonic

Appendicular skeleton > The patellar trochlea, for articulation with the patella, lies anteriorly between the condyles. In man, psoas runs from the ventral surfaces of lumbar vertebrae where it is joined by iliacus, running from the inner surface of the ilium, to form a joint tendon that inserts into the lesser trochanter of the femur. It bears a proximal facet for articulation with the tibia. Of these two ridges, the lateral is the more prominent, and descends to the summit of the lateral condyle. The tibial crest continues distally from the tuberosity along the shaft. A small muscle, the popliteus, lies in the notch and is a flexor of the knee joint. Just distal to the lateral condyle, on the lateral surface and facing distally, is the small, nearly oval facet for the head of the fibula (see later). Each condyle bears a smooth, semicircular surface for articulation with the tibia. The tibial tuberosity, for insertion of the patellar ligament, lies anteriorly. The ilioischiopubo-coccygeus (as Romer said: ‘what names these muscles have’) is the largest and runs from the inner surfaces of the three bones of the pelvic girdle to the vertebrae of the tail. It is about twice as long as the astragalus and projects posteriorly as the heel. When you browse the IMAIOS website, cookies are placed on your browser. All arise from the upper end of the femur (rectus femoris also arises from the pubis) and are inserted into the patella. The ischium extends posteriorly from the acetabulum and has an expanded termination, the ischial tuberosity. The adductor brevis attaches proximally to the body and also the inferior ramus of the pubis passing to the pectineal line and the linea aspera on the femur, but only its proximal portion. In addition, there are the lateral rotators piriformis, obturator externus and internus, quadratus femoris or gemelli; short muscles that run from the pelvis to the upper end of the femur and rotate the femur and stabilise the hip joint. The astragalus articulates ventrally with the calcaneum, which lies laterally. Between the Adductor magnus and the Vastus medialis four muscles are inserted: the Iliacus and Pectineus above; the Adductor brevis and Adductor longus below. It ends below at the summit of the medial condyle, in a small tubercle, the adductor tubercle, which affords insertion to the tendon of the Adductor magnus. The deep depression posteriorly between the trochanter and head is the trochanteric fossa. Mobile and tablet users, you can download e-Anatomy on Appstore or GooglePlay. It is termed the gluteal tuberosity, and gives attachment to part of the Glutæus maximus: its upper part is often elongated into a roughened crest, on which a more or less well-marked, rounded tubercle, the third trochanter, is occasionally developed. There are five metatarsals. The obturator externus is responsible for adduction of the thigh and also aids medial rotation of the thigh. There are two distal facets, both toward the anterior half of the medial surface. The head is supported by the neck, which projects obliquely from the proximal end of the femur. There are adductors, longus, magnus and brevis (long, large and short) and gracilis (thin) that run from the pubis and from the shaft of the femur to the tibia. Function: Adducts and flexes thigh and has (controversial) axial rotation benefits, depending upon femur position In the distal hindlimb, the separation of muscle groups into ventral and dorsal (flexor and extensor) is obvious, but less so around the hip joint, although separation into ventral and dorsal is possible on the basis of the embryology of the muscles (Romer, 1970). Between the Vastus lateralis and the Adductor magnus two muscles are attached—viz., the Glutæus maximus inserted above, and the short head of the Biceps femoris arising below. Right pes of the cat in dorsal view. For femoral distal ends, the intercondylar notch is posterior and distal, and the lateral border of the patellar notch is more elevated. We use cookies to guarantee the best experience on our website. Pectineus is responsible for adduction and flexion of the thigh, and helps somewhat in rotation of the thigh medially. For intact femora or proximal ends, the head is proximal and faces medially. Shaft of femur; Body of femur > Note how the articulations among the tarsals and metatarsals are arranged to produce interlocking joints that tend to restrict movement. The femur (Figure 7.22) is the bone of the proximal part of the hind limb, or thigh. Each innominate is composed largely from three bones, the ilium, ischium, and pubis, although a fourth center of ossification, the acetabular bone, makes a small contribution.

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