Anatomy of the Colon: Colon Introduction and Embryology (Part 1)
Explore “Colon Introduction and Embryology” in this Anatomy of the Colon lesson. Part 1 of the five-part series brings together the source material and lesson topics. Use the contents links to find a section, read the notes, and consult the complete original teaching slides below.
Lesson topics
- Anatomy of Colon
- Objectives.,
- Colon Introduction.,
- Embryology of colon
- Embryology Of Gut..,
Contents
- Read the original document
- Anatomy of Colon
- Objectives.,
- Colon Introduction.,
- Embryology of colon
- Embryology Of Gut..,
- Embryology Of Gut.., (Midgut)
- Embryology Of Gut.., (Hindgut)
REQUEST THE COMPLETE DOCUMENT ON WHATSAPP
Read the original source document
Anatomy of the Colon – M. Gowri Shankar: original teaching slides for this study series.
Anatomy of Colon
Anatomy of Colon dr. m. gowri Shankar, DEPARTMENT OF SURGERY For suggestions mail me at
Objectives.,
Objectives., Embryology Gross anatomy Features of colon, facts, relations and its attachments Blood supply ( Arterial and Venous ) Lymphatic drainage of colon Nerve supply Histology
Colon Introduction.,
Colon Introduction., Large bowel extends from ileocaecal junction to the Anus Large intestine = caecum + colon + rectum Colon is Divided into., Ascending colon Transverse colon Descending colon Sigmoid colon
Embryology of colon
Embryology of colon
Embryology Of Gut..,
Embryology Of Gut.., Blastocyst has, Outer cell mass (trophoblast) & Inner cell mass (embryoblast) Now coming to Embryoblast.,which divides into, Epiblast & Hypoblast And here comes the process of gastrulation, which results in division of epiblast into., Mesoderm &
Embryology Of Gut..,
Embryology Of Gut.., And we know that entire gut is formed from endoderm Now coming to endoderm which replaces hypoblast and covers entire yolk sac…. Now imagine that entire surface of yolk sac is covered with endoderm Yaa..finally precursor for GUT tube is formed successfully
Embryology Of Gut..,
Embryology Of Gut.., Now the yolk sac which is covered by endoderm forms head and tail fold After formation of head and tail fold, Part of Yolk sac goes into embryo and forms primitive Gut
REQUEST THE COMPLETE DOCUMENT ON WHATSAPP
Embryology Of Gut..,
Embryology Of Gut.., Primitive GUT has 3 parts Midgut and
Embryology Of Gut..,
Embryology Of Gut.., For colon, midgut and hindgut are the precursors Midgut initially is a blunt wide tube which later forms a loop along the axis of vitelline artery (later forms the Superior Mesenteric Artery) After loop formation midgut is divided into prearterial and postarterial parts
Embryology Of Gut.., (Midgut)
Embryology Of Gut.., (Midgut) After loop formation midgut is divided into prearterial and postarterial parts Derivatives of prearterial midgut includes, Half of D2, D3, D4 Derivatives of postarterial midgut includes, Terminal ileum Caecum and Appendix Ascending colon Right 2/3rd of transverse colon
Embryology Of Gut.., (Hindgut)
Embryology Of Gut.., (Hindgut) Now coming to hindgut.. Hindgut is divided by allantoic diverticulum into Pre allantoic part and Post allantoic part Derivatives of Pre allantoic HindGut Left 1/3rd of transverse colon, descending colon and sigmoid colon Derivatives of post allantoic Hindgut Forms dilated cloaca which again divides into ventral urogenital sinus and dorsal Rectum and Anal Canal
Review questions and answers
What are the key points about Anatomy of Colon?
Anatomy of Colon dr. m. gowri Shankar, DEPARTMENT OF SURGERY For suggestions mail me at
What are the key points about Objectives.,?
Objectives., Embryology Gross anatomy Features of colon, facts, relations and its attachments Blood supply ( Arterial and Venous ) Lymphatic drainage of colon Nerve supply Histology
What are the key points about Colon Introduction.,?
Colon Introduction., Large bowel extends from ileocaecal junction to the Anus Large intestine = caecum + colon + rectum Colon is Divided into., Ascending colon Transverse colon Descending colon Sigmoid colon
What are the key points about Embryology Of Gut..,?
Embryology Of Gut.., Blastocyst has, Outer cell mass (trophoblast) & Inner cell mass (embryoblast) Now coming to Embryoblast.,which divides into, Epiblast & Hypoblast And here comes the process of gastrulation, which results in division of epiblast into., Mesoderm &
What are the key points about Embryology Of Gut.., (Midgut)?
Embryology Of Gut.., (Midgut) After loop formation midgut is divided into prearterial and postarterial parts Derivatives of prearterial midgut includes, Half of D2, D3, D4 Derivatives of postarterial midgut includes, Terminal ileum Caecum and Appendix Ascending colon Right 2/3rd of transverse colon
More lessons from this document
- Anatomy of the Colon – M. Gowri Shankar — Part 1
- Anatomy of the Colon – M. Gowri Shankar — Part 2
- Anatomy of the Colon – M. Gowri Shankar — Part 3
- Anatomy of the Colon – M. Gowri Shankar — Part 4
- Anatomy of the Colon – M. Gowri Shankar — Part 5
Conclusion
The important points in Anatomy of Colon should be reviewed alongside the definitions, examples and comparisons given above. Continue with the other four articles to cover the rest of the source material.