Related Experiment Video

Updated: Aug 10, 2026

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration
05:05

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

Postembryonic dimensional allometry of the human femur

D R Sumner

    American Journal of Physical Anthropology
    |May 1, 1984
    PubMed

    More Related Videos

    Cantilever Bending of Murine Femoral Necks06:44

    Cantilever Bending of Murine Femoral Necks

    Published on: January 5, 2022

    Induction and Diverse Assessment Indicators of Experimental Autoimmune Encephalomyelitis06:19

    Induction and Diverse Assessment Indicators of Experimental Autoimmune Encephalomyelitis

    Published on: September 9, 2022

    Related Concept Videos

    Classification of Bones01:18

    Classification of Bones

    The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
    Long and Short Bones
    The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The long...
    Bone Formation by Intramembranous Ossification01:29

    Bone Formation by Intramembranous Ossification

    Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
    The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into...
    Bones of the Lower Limb: Femur and Patella01:16

    Bones of the Lower Limb: Femur and Patella

    The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...
    Changes in the Appendicular Skeleton with Age01:09

    Changes in the Appendicular Skeleton with Age

    The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
    Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
    Bone Formation by Endochondral Ossification01:24

    Bone Formation by Endochondral Ossification

    Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...