Body of femur

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Body of femur_table_infobox_0

Body of femurBody of femur_header_cell_0_0_0
DetailsBody of femur_header_cell_0_1_0
IdentifiersBody of femur_header_cell_0_2_0
LatinBody of femur_header_cell_0_3_0 corpus femorisBody of femur_cell_0_3_1
TA98Body of femur_header_cell_0_4_0 Body of femur_cell_0_4_1
TA2Body of femur_header_cell_0_5_0 Body of femur_cell_0_5_1
FMABody of femur_header_cell_0_6_0 Body of femur_cell_0_6_1

The body of femur (or shaft of femur), is the almost cylindrical, long part of the femur. Body of femur_sentence_0

It is a little broader above than in the center, broadest and somewhat flattened from before backward below. Body of femur_sentence_1

It is slightly arched, so as to be convex in front, and concave behind, where it is strengthened by a prominent longitudinal ridge, the linea aspera. Body of femur_sentence_2

It presents for examination three borders, separating three surfaces. Body of femur_sentence_3

Of the borders, one, the linea aspera, is posterior, one is medial, and the other, lateral. Body of femur_sentence_4

Borders Body of femur_section_0

The borders of the femur are the linea aspera, a medial border, and a lateral border. Body of femur_sentence_5

Linea aspera border Body of femur_section_1

The linea aspera is a prominent longitudinal ridge or crest, on the middle third of the bone, presenting a medial and a lateral lip, and a narrow rough, intermediate line. Body of femur_sentence_6

Above, the linea aspera is prolonged by three ridges. Body of femur_sentence_7

The lateral ridge termed the gluteal tuberosity is very rough, and runs almost vertically upward to the base of the greater trochanter. Body of femur_sentence_8

It gives attachment to part of the gluteus 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. Body of femur_sentence_9

The intermediate ridge or pectineal line is continued to the base of the lesser trochanter and gives attachment to the pectineus; the medial ridge is lost in the intertrochanteric line; between these two a portion of the iliacus is inserted. Body of femur_sentence_10

Below, the linea aspera is prolonged into two ridges, enclosing between them a triangular area, the popliteal surface, upon which the popliteal artery rests. Body of femur_sentence_11

Of these two ridges, the lateral is the more prominent, and descends to the summit of the lateral condyle. Body of femur_sentence_12

The medial is less marked, especially at its upper part, where it is crossed by the femoral artery. Body of femur_sentence_13

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. Body of femur_sentence_14

From the medial lip of the linea aspera and its prolongations above and below, the vastus medialis arises; and from the lateral lip and its upward prolongation, the vastus lateralis takes origin. Body of femur_sentence_15

The adductor magnus is inserted into the linea aspera, and to its lateral prolongation above, and its medial prolongation below. Body of femur_sentence_16

Between the vastus lateralis and the adductor magnus two muscles are attached: the gluteus maximus inserted above, and the short head of the biceps femoris arising below. Body of femur_sentence_17

Between the adductor magnus and the vastus medialis four muscles are inserted: the iliacus and pectineus above; the adductor brevis and adductor longus below. Body of femur_sentence_18

The linea aspera is perforated a little below its center by the nutrient canal, which is directed obliquely upward. Body of femur_sentence_19

Lateral border and medial border Body of femur_section_2

The other two borders of the femur are only slightly marked: the lateral border extends from the antero-inferior angle of the greater trochanter to the anterior extremity of the lateral condyle; the medial border from the intertrochanteric line, at a point opposite the lesser trochanter, to the anterior extremity of the medial condyle. Body of femur_sentence_20

Surfaces Body of femur_section_3

Anterior surface Body of femur_section_4

The anterior surface includes that portion of the shaft which is situated between the lateral and medial borders. Body of femur_sentence_21

It is smooth, convex, broader above and below than in the center. Body of femur_sentence_22

From the upper three-fourths of this surface the vastus intermedius arises; the lower fourth is separated from the muscle by the intervention of the synovial membrane of the knee-joint and a bursa; from the upper part of it the articularis genus takes origin. Body of femur_sentence_23

Lateral surface Body of femur_section_5

The lateral surface includes the portion between the lateral border and the linea aspera; it is continuous above with the corresponding surface of the greater trochanter, below with that of the lateral condyle: from its upper three-fourths the vastus intermedius takes origin. Body of femur_sentence_24

Medial surface Body of femur_section_6

The medial surface includes the portion between the medial border and the linea aspera; it is continuous above with the lower border of the neck, below with the medial side of the medial condyle: it is covered by the vastus medialis. Body of femur_sentence_25


Credits to the contents of this page go to the authors of the corresponding Wikipedia page: en.wikipedia.org/wiki/Body of femur.