Foregut 1 Oral cavity tonsils salivary glands Pharynx
- Slides: 35
Foregut. 1 Oral cavity, tonsils, salivary glands, Pharynx, . 2 Esophagus. 3 Stomach. 4 Duodenum(proximal to bile duct opening(. 5 Liver & biliary apparatus. 6 Pancreas upper respiratory system Lower respiratory system Spleen Midgut. 1 Small intestine. 2 Caecum. 3 Vermiform appendix. 4 Ascending colon , Right 1/2 -2/3 transverse colon Hindgut. 1 Right 1/2 -12/3 transverse colon. 2 Decending colon, sigmoid, rectum, anal canal. 3 Epithelium of urinary bladder, urethra )Grant’s Atlas of Anatomy, 7 th ed(.
DIGESTIVE SYSTEM Yolk sac Presomite Yolk sac 22 d • �������� 4 • Embryo ������ head ��� tail folds • Endoderm ����� yolk sac incorporate ���� embryo • ���� primordial (primitive, endodermal) gut tube )Langman’s Medical Embryology, 8 th ed(.
24 d 1 mo. • Primitive gut tube ������ epithelium ��� glands Epithelium ��� cranial extremity ��� tract stomodeum (primitive mouth) Epithelium ��� caudal extremity ��� tract proctodeum (anal pit) • Muscle, connective tissue ����������� splanchnic mesoderm )Langman’s Medical Embryology, 8 th ed(.
4 -wks )Moore & Persaud: The Developing Human: Clinically Oriented Embryology, 6 th ed(.
Primordium of liver )hepatic diverticulum( Primitive gut tube. 1 Foregut ��� oral membrane ������� hepatic diverticulum ����� anterior intestinal portal 2. Midgut ��� anterior intestinal portal ��� posterior intestinal portal ������ yolk sac 3. Hind gut ��� anterior intestinal portal ��� cloacal membrane duct )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Celiac a. Superior mesenteric a. )Netter, Atlas of Human Anatomy( Inferior mesenteric a.
Celiac a. Inf. mesenteric a. Sup. mesenteric a. )Netter, Atlas of Human Anatomy(
Esophagus & Respiratory diverticulum Esophagus ����� foregut ������ caudal ��� primitive pharynx 5 wks 4 wks (Tracheoesophageal septum) 3 wks )Langmann’s Medical Embryology, 8 th ed(. 4 wks
Esophagus • ���� esophagus �� ���� • �������������������������� heart & lung • 7 weeks : epithelium ������ • ���� 8 weeks ���� recanalization • Muscularis externa Superior 2/3 ���� striated muscle ����� mesenchyme �� caudal pharyngeal arches Inferior 1/3 ���� smooth m. ����� splanchnic mesenchme
Esophageal atresia ������� esophagus deviation of tracheopharyngeal septum ������� Esophageal stenosis lumen ��������� distal 1/3 ����� incomplete canalization Short esophagus ��������� stomach ������ thorax
Stomach 28 d ���� 4 wks ������ foregut �������� 35 d �������� -���� )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
6 wks ������ dorsal ������� greater curvature 40 d ���� stomach ���� rotation ������ ����� 90���� 48 d )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Mesenteries of the stomach . 1 Dorsal mesogastrium (Dorsal mesentery(. 2 Ventral mesogastrium(Ventral mesentery( )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Clemente Anatomy, 3 rd ed
Omental bursa )lesser peritoneal sac( • Clefts in dorsal mesogastrium • Coalescence ��� clefts ������� omental bursa 5 wks • Dorsal mesentery ������� Stomach ������ � • Omental bursa ������ Omental (epiploic) foramen • Inferior recess of omental bursa �������� Greater omentum • ����� recess ������������ greater omentum H 6 wks )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Duodenum 4 weeks: • Duodenum ����. 1 Caudal part of foregut 2. Cranial part of midgut 3. Splanchnic mesenchyme 5 wks 4 wks • ������� loop �������� ventral • ����� stomach ���� duodenual loop ��������� retroperitoneum 6 & 5 weeks: lumen ��� duodenum ��������� 5 wks 6 wks )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Normal lumen 8 weeks: Vacuolation ������� Duodenal stenosis Duodenal atresia )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Liver. 1. 2. 3. 4 C Q )Netter: Atlas of Human Anatomy( Right lobe Left lobe Caudate lobe Quadrate lobe
Liver, gall bladder, biliary duct system 4 wks : 4 weeks Hepatic diverticulum ������ caudal part ��� foregut ������ septum transversum �������� splanchnic mesode �������� central tendon of diaphragm ventral mesentery 5 wks Moore & Persaud: The Developing Human, Clinically Oriented Embryology, 6 th ed(
Hepatic diverticulum • Larger cranial part ���� primordium ��� liver • Small caudal part ���� gall bladder • Stalk of diverticulum ���� cystic ducts 4 wks 5 -10 weeks • Liver ������ abdomen • ���� Rt ��� Lt lobe ����� • ����� Rt lobe ���� Lt lobe • Caudate & quadrate lobe ����� Rt lobe • 6 weeks �� Hematopoiesis • 12 weeks ����� bile 5 wks 6 wks )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
5 wks Ventral mesetery. 1 Lesser omentum ��� liver �� lesser curvature of stomach 2. Falciform ligament ��� liver �� anterior abdominal wall ��umbilical vein ����� free border ��� falciform ligament ventral mesentery ����� visceral peritoneum ��� liver ������� liver ������ bare area )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Pancreas )Netter: tlas of Human Anatomy(
Pancreas: 5 -8 weeks • Dorsal pancreatic bud • Ventral pancreatic bud • ����� duodenum ���� VPB ������� dorsal ��� bile duct • VPB ������ DPB )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Spleen • Large vascular lymphatic organ • 5 weeks ����� mesenchymal cells ������� dorsal mesogastrium • ������ stomach ������������ mesogastrium ������ peritoneum ����� Lt kidney )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
MIDGUT . 1 Small intestine. 2 Caecum. 3 Vermiform appendix. 4 Ascending colon , Right 1/2 -2/3 transverse colon
Rotation of midgut • Midgut ����� midgut loop �� ������ U • Midgut loop ���� �� �� extraembryonic coelom ��� umbilical cord ���� physiological umbilical herneation (6 wks) • Loop ������ post. abdominal wall ���� elongated mesentery 6 weeks • Midgut loop. 1 Cranial limb. 2 Caudal limb small intestinal loop ������� caecal diverticulum • Midgut loop ����� 90 ���� superior mesenteric artery Cranial limb ������� Caudal limb ������� 10 weeks )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Returning of the midgut to abdomen 11 weeks 10 wks - - liver & kidneys ����� Abdominal vavity ���� Reduction of physiological midgut hernia Small intestine -������� sup mesenteric a Large intestine -��������� 180 ���� )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(. Later stage
Fixation of intestines Before �������� stomach & duode Duodenum (midgut) & pancreas ���� posterior abdominal wall ���� fusion retroperitoneal position 4 mo After . 1��� ������ intestine Ascending & descending colon ���� posterior abdominal wall ���� fusion retroperitoneal position . 2 Mesentery ��� transverse colon ��� posterior wall ��� greater omentum New born )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(. . 3 Jejunum ��� Ileum ������� mesentery ������� ascending colon ������� duodenum (intraperitoneum) ����� ileocecal junction
Caecum and Vermiform appendix 8 wks 12 wks 6 wks Adult At birth • ������� cecum ����� • Appendix ����� medial • Ascending colon ������� appendix ������ retrocecal )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Umbilical cord Site of liver in sac Intestine Anterior abdominal wall Persistence of the herniation of abdominal contents in the proximal portion of umbilical cord )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
HINDGUT. 1 Right 1/2 -12/3 transverse colon. 2 Decending colon, sigmoid, rectum, anal canal. 3 Epithelium of urinary bladder, urethra
Cloaca • ������ hindgut ������ endoderm���� surface ectoderm��� cloacal membrane 4 wks • urorectal septum (mesenchyme ����� allantois ��� hindgut) ���� dorsal ��� ventral parts 6 wks 1. Dorsal : rectum & cranial part of anal canal ������� urinary bladder & urethra 2. Ventral ���� urogenital sinus ������ rectum & sup. part of anal canal 8 weeks Anal membrane ��� 7 wks )Moore & Persaud: The Developing Human: Clinical Oriented Embryology, 6 th ed(.
Anal Canal • Superior 2/3 ����� hindgut • Inferior 1/3 ����� proctodeum
- Thoracic membranes
- Pyloric orifice function
- Testing cranial nerves
- Salivary gland swelling
- Function of salivary glands
- Sialography
- Minor salivary glands
- Phadebas paper
- Submandibular gland
- Minor salivary glands
- Minor salivary glands
- Intestinal structure
- Striated duct
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- Salivary glands anatomy
- Pseudostratified columnar epithelium
- Derivatives of mid gut
- Foregut, midgut hindgut adalah
- Foregut
- Stomodeum and proctodeum
- Proctodeum
- Celiac trunk branches
- Ventral mesentery derivatives
- Ligaments in the stomach
- Peritoneal cavity definition
- Label the abdominal regions.
- Thoracic cavity and abdominal cavity
- Alimentary menu
- Tonsils classification
- تونسلايتس
- Kissing tonsils grading
- Lymphoid organ
- Tonsils
- Trigonum kiliani
- Tonsils
- Histology of lymphoid tissue