BGDA Practical Placenta - Cord Development
From Embryology
Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities |
Hofbauer Cells
- located the core of placental villi
- macrophages with micropinocytotic activity and phagocytosis ability
- possible paracrine role for early stages of placental vasculogenesis
- express angiogenic growth factors (VEGF)
Wharton's Jelly
- placental cord connective tissue (substantia gelatinea funiculi umbilicalis)
- amorphous substance containing glycosaminoglycans, proteoglycans and hyaluronic acid.
- cells similar to smooth muscle that allows a contractile function.
- network of collagen that form canaliculi and perivascular spaces.
- maintain blood flow to the fetus during placental cord compression during pregnancy or delivery.
First described and named after Thomas Wharton (1614–1673) an English physician and anatomist.
Placental Arteries and Vein
Placental Cord Histology
Placental Cord Ultrasound
Ultrasound image of transverse scan through the cord show the method of estimation of the cross-sectional area.
Terms
Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities |