1. ملخص السعادة Anatomy GIT

2. Mylohyoid muscle Nerve supply: Mylohyoid nerve.

3. Geniohyoid muscle Nerve supply: C1 (component of hypoglossal nerve)

4. Stylohyoid Nerve supply: Facial nerve

5. Digastric muscle Nerve supply: Anterior belly, mandibular nerve. Anterior belly, mandibular nerve. Posterior belly, facial nerve. Posterior belly, facial nerve.

6. Hyoglossus: Styloglossus, Genioglossus: N. Supply Hypoglossal nerve (XII)

7. Palatoglossus: N. Supply: Pharyngeal plexus of vagus (X) nerve N. Supply: Pharyngeal plexus of vagus (X) nerve

8. Nerve supply of the tongue Sensory: Sensory: Anterior 2/3: Anterior 2/3: Gerneral sensation: Lingual nerve of mandibular of trigeminal. Gerneral sensation: Lingual nerve of mandibular of trigeminal. Taste sensation: Chorda tympani (the parasympathetic part of facial (VII) nerve. Taste sensation: Chorda tympani (the parasympathetic part of facial (VII) nerve. Posterior 1/3: IX (glossopharyngeal) nerve General and taste). Posterior 1/3: IX (glossopharyngeal) nerve General and taste). Posterior end of the dorsum: Internal laryngeal n. (from X). Posterior end of the dorsum: Internal laryngeal n. (from X). Motor: XII to all muscles except palatoglossus. Motor: XII to all muscles except palatoglossus.

9. Vessles supplies of tounge: Arterial supply of the tongue: lingual arterey (which gives 2 dorsalis linguae and deep lingual artery venous drainage: lingual vein ---  I J V. Arterial supply of the tongue: lingual arterey (which gives 2 dorsalis linguae and deep lingual artery venous drainage: lingual vein ---  I J V.

10. Of tounge: Lymphatic drainage The anterior 2/3 …..> submental lymph nodes of both sides The anterior 2/3 …..> submental lymph nodes of both sides Margin …..> submandibular lymph nodes of the same side Margin …..> submandibular lymph nodes of the same side Posterior 1/3 …..> Upper deep cervical LNs (UDC LN) of both sides. Posterior 1/3 …..> Upper deep cervical LNs (UDC LN) of both sides.

11. Parotid gland Arterial: External carotid artery and its terminal branches within the gland. Venous: Into the retromandibular vein. Nerve supply: Sensory supply: From Auriculotemporal nerve. Sympathetic supply: From the plexus around external carotid artery. Parasympathetic supply: Otic ganglion Lymph drainage: Into Preauricular (parotid), superficial cervical and deep cervical lymph nodes.

12. Submandibular salivary gland Arterial:Arterial: Facial and lingual arteries.Facial and lingual arteries. Venous:Venous: Facial and lingual veinsFacial and lingual veins Lymph drainageLymph drainage Submandibular lymph nodes.Submandibular lymph nodes. Deep cervical lymph nodes especially jugulomohyoid.Deep cervical lymph nodes especially jugulomohyoid. Nerve supply:Nerve supply: Sensory: Lingual nerve.Sensory: Lingual nerve. Sympathetic: Plexus around facial artery.Sympathetic: Plexus around facial artery. Parasympathetic:Parasympathetic: Preganglionic fibres: Chorda tympani (VII)Preganglionic fibres: Chorda tympani (VII) Ganglion: Submandibular ganglionGanglion: Submandibular ganglion Postganglionic fibres: LingualPostganglionic fibres: Lingual

13. Sublingual salivary gland Arterial supply: Sublingual branch of lingual artery.Sublingual branch of lingual artery. Twigs from Submental artery.Twigs from Submental artery. Venous drainage: Lingual and facial veins.Lingual and facial veins. Lymph drainage: Submental and submandibular lymph nodes into deep cervical lymph nodes.Submental and submandibular lymph nodes into deep cervical lymph nodes. Nerve supply;Nerve supply; Sensory: Lingual nerve. Sympathetic: Plexus around lingual and facial arteries. Parasympathetic: Branches of submandibular ganglion.

14. :Tonsils Arterial supply of tonsil:Arterial supply of tonsil: 1.Tonsillar branch of facial artrey. 2.Twigs from dorsalis lingulae artery. 3.Twigs from ascending pharyngeal artery (from ECA). 4.Twigs from ascending palatine artery (from facial). Venous drainage:Venous drainage: Paratonsillar vein to pharyngeal plexus. Lymph drainage:Lymph drainage: Upper deep cervical lymph nodes mainly jugulodigastric lymph nodes. Nerve supply:Nerve supply: 1.Tonsillar branch of glossopharyngeal nerve. 2.Lesser palatine nerve.

15. Nerve supply of constrictor muscles of pharynx : Pharyngeal plexus

16. Nerve supply to the Muscles of pharynx : All muscles of pharynx are supplied by cranial part of accessory nerve through pharyngeal branch of vagus except Stylopharyngeus m. (glossopharyngeal nerve).All muscles of pharynx are supplied by cranial part of accessory nerve through pharyngeal branch of vagus except Stylopharyngeus m. (glossopharyngeal nerve).

17. pharynx Arterial:Arterial: 1.Ascending pharyngeal artery. 2.Ascending palatine artery. 3.Facial artery. 4.Lingual artery. 5.Pharyngeal branch of maxillary artery. Venous drainage:Venous drainage: Pharyngeal plexus of veins into internal jugular vein. Lymph drainage: 1.Upper deep cervical lymph nodes. 2.Lower deep cervical lymph nodes. 3.Retropharyngeal lymph nodes. 4.Para tracheal lymph nodes

18. Esophagus : 1- Arterial supply: Cervical part:  Inferior thyroid artery. Thoracic part:  Descending thoracic aorta.  Twigs from bronchial arteries. Abdominal part:  Left gastric artery. 2- Venous drainage: Cervical part:  Inferior thyroid veins. Thoracic part:  Aygos, hemiazygos and accessory hemiazygos veins. Abdominal part:  Left gastric vein.

19. Nerve supply of esophaus: Sympathetic:  Sympathetic trunk. Parasympathetic:  Vagi.

20. Pyramidalis muscle nerve supply : subcostal nerve subcostal nerve

21. Anterior abdominal wall Artries: Above the umbilicus 1-superior epigasrtic artery. 2-musculophreni artery 3-lower two posterior intercostal and subcostal artries

22. Below the umbilicus Below the umbilicus 1-Inferior epigastric artery 2-Deep circumflex iliac artery 3-Superficial branches of femoral artery

23. Nerves : 1-Lower five intercostal and subcostal nerves 2-Illio-hypogastric and illio-inguinal nerves Lymphatics ; A-Above the umbilicus into pectoral lymph nodes B- Below the umbilicus into superficial inguinal lymph nodes

24. Nerve supply of the peritoneum: Parietal peritoneum:Parietal peritoneum: Supplied by somatic nerves that supply the abdominal wall (lower 5 intercostal & subcostal nerves) & diaphragm (phrenic nerve). The parietal peritoneum is senstive to pain, temperature and touch. The visceral peritoneum:The visceral peritoneum: Supplied by autonomic nerves that supplies the viscera. It is only sensitive to traction and distension of the viscera.

25. Stomach: Blood supply of the stomach: 1- Arterial supply: From the branches of the celiac trunk. -Left gastric artery arises from the celiac artery. -Right gastric artery arises from the hepatic artery. -Short gastric arteries arise from the splenic artery. -Left gastroepiploic artery arises from the splenic artery. -Right gastroepiploic artery arises from the gastroduodenal branch of the hepatic artery. ماتخوف إن شاء الله, شوفوا معها duodenum

26. Venous drainage of the stomach: The left and right gastric veins drain directly into the portal vein. The short gastric veins and the left gastroepiploic vein join the splenic vein The right gastroepiploic vein joins the superior mesenteric vein

27. Lymph drainage of stomach: - The gastric lymph vessels drain ultimately into the celiac lymph nodes.

28. Nerve supply of the stomach: Sympathetic: from celiac plexus around celiac trunk. It causes relaxation of the wall and contraction of pyloric sphincter. It also carries pain sensation. Parasympathetic: from anterior and posterior gastric nerves. It is secretory to the glands of the stomach, inhibitory to the pyloric sphincter and motor to the wall.

29. Pancreas : Arterial supply: 1- Superior, inferior pancreatico-duodenal arteries: to the head. 2- Pancreatic branches of splenic artery: to the rest of pancreas. Venous drainage: To splenic vein and portal vein. Lymphatic : 1- Upper part of head  coeliac lymph nodes. 2- Lower part of head  superior mesenteric lymph nodes. 3- Rest of pancreas  pancreatico-splenic lymph nodes.