HLTH109 Lecture Notes - Lecture 8: Endochondral Ossification, Dermis, Syndactyly

94 views5 pages

Document Summary

21st of august 2018: limb development: third week of developmental gastrulation: Transformation of the bilaminar into trilaminar embryonic disc. The limb buds first appear as a condensation of mesenchyme ventrolateral on the embryo (end of week 4) The upper limb forms first followed by the lower limb 2 days later: limb development disorders: M = absence of the part of the limb. A = absence of the whole limb. Due to disturbance of ossification at the epiphyseal plate. Clavicle is underdeveloped or not developed at all. Extreme fragility of the bone, prone to fracture. Abnormal position of the foot that prevents weight-bearing: osteogenesis: the development of the bone: There are 2 types of bone formation: Intramembranous = bones of the skull and clavicle. Endochondral = ossification of the rest of the skeleton. By the 12th week nearly all limb bones show primary ossification centers: general structure of the synovial joints: By the end of w8 resemble adult joints.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions