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Encyclopedia > Femur neck
Femur neck
Upper extremity of right femur viewed from behind and above.
Right femur. Anterior surface.
Latin collum femoris
Gray's subject #59 243
MeSH femur+neck
Dorlands/Elsevier c_46/12249489

The femur neck is a flattened pyramidal process of bone, connecting the head with the body, and forming with the latter a wide angle opening medialward. Image File history File links Gray243. ... The femur or thigh bone is the longest, most voluminous, and strongest bone of the human body. ... Image File history File links Download high-resolution version (467x1253, 48 KB) Source Originally from en. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Elseviers logo. ...


The angle is widest in infancy, and becomes lessened during growth, so that at puberty it forms a gentle curve from the axis of the body of the bone. Puberty refers to the process of physical changes by which a childs body becomes an adult body capable of reproduction. ...


In the adult, the neck forms an angle of about 125° with the body, but this varies in inverse proportion to the development of the pelvis and the stature.


In the female, in consequence of the increased width of the pelvis, the neck of the femur forms more nearly a right angle with the body than it does in the male. The hand mirror and comb of the Roman Goddess Venus is often used to represent the female sex. ... The shield and spear of the Roman God Mars are often used to represent the male sex In heterogamous species, male is the sex of an organism, or of a part of an organism, which typically produces smaller, mobile gametes (spermatozoa) that are able to fertilise female gametes (ova). ...


The angle decreases during the period of growth, but after full growth has been attained it does not usually undergo any change, even in old age; it varies considerably in different persons of the same age.


It is smaller in short than in long bones, and when the pelvis is wide.


In addition to projecting upward and medialward from the body of the femur, the neck also projects somewhat forward; the amount of this forward projection is extremely variable, but on an average is from 12° to 14°.


The neck is flattened from before backward, contracted in the middle, and broader laterally than medially.


The vertical diameter of the lateral half is increased by the obliquity of the lower edge, which slopes downward to join the body at the level of the lesser trochanter, so that it measures one-third more than the antero-posterior diameter.


The medial half is smaller and of a more circular shape.


The anterior surface of the neck is perforated by numerous vascular foramina. In anatomy, a foramen is any opening. ...


Along the upper part of the line of junction of the anterior surface with the head is a shallow groove, best marked in elderly subjects; this groove lodges the orbicular fibers of the capsule of the hip-joint. Old age consists of ages nearing the average lifespan of human beings, and thus the end of the human life cycle. ... Bones of the Hip In anatomy, the hip is the bony projection of the femur, known as the greater trochanter, and the overlying muscle and fat. ...


The posterior surface is smooth, and is broader and more concave than the anterior: the posterior part of the capsule of the hip-joint is attached to it about 1 cm. above the intertrochanteric crest.


The superior border is short and thick, and ends laterally at the greater trochanter; its surface is perforated by large foramina.


The inferior border, long and narrow, curves a little backward, to end at the lesser trochanter.


External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. The Medical University of Vienna is autonomous since 1 January 2004. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


 
 

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