Pancreas: Head Anatomy

University:
North Idaho College
Course:
NURS 201 | Fundamentals Of Nursing
Academic year:

2020
Views:

179

Pages:

2
Author:

MichGar

PANCREAS : HEADDefinition I-It is the right rounded portion of pancras.Shaped Situation :- Globular but flattened from before backwardsIt lies in the concavity of duodenum RAY (overlapping the descendingand horizontal parts).DIPANKARPresenting PartsaAnterior Surface (b) Posterior SurfaceCSuperior Border (d) Lower border (e) Rt border (f) Lt border.RelationsPeritorrea RelationHuman Anatomy ForExam1. Anterior Surface (i) Near the middle : Where is is crossed byBut sometimes the transverse mesocolon may extend intotransverse colon, it's non peritoneal.anterior surface of head. Here, it is wholely covered byperitoneum, except at the line of attachment oftransverse mesocolon, when.(ii) Area of above the attailment is lined by greater Saeperitoreum.2. Posterior Surface It is non-peritoneal.General Relation1. Anterior Surface2. Posterior Surface(i) Near the middle Transverse polon-(a) BileDuct(ii) Area above the transverse colon.- Overlapped by 1st part of Duodenum(b) Inferior venacava behind(iii) Area below the transverse colonwhich lies the followings- Covered by coils of jejurum.(i) Rt Psoas major(ii) Rt crus of diaphragm\iii) Rt renal artery and bothrenal veins.(ir) Rt sympathetic trink.(v) Rt copliac ganglion. HEAD OF PANCREAS Cont.3. Superior Border4. Lower Border(i) 1st part of Duodenum(i) 3rd part of Duodenum(ii) Superior pancreatico -duodenal(ii) Inferior pancreatico5. Vessels. Right Border DIPARWAR RAYduodenal vessels.6. Left Border2nd part of Duodenum.(i) Lower part projectsIn between duodenum andmedially forming thepancross lies:-uncinate process.(ij Anastomosis between superior(ii) Upper part joins withand inferior pancreatico duderialvessels.the body forming the neck(ii) Pancreatico duodenal lymph nodes.Human For Anatomy ExamSTRUCTURES1. Pancreatic duct gives rise to minute ducts which end inthe alreoli, lined with cubical cells which have 2 zones1 Outer :- Clear and faintly Straited (ii)JInner- Having Secreting2. Inter in between alveolar cells of islands of Langerhans. These granules.B Cells assording to Staining reaction.the alveoli and consist of d-cells lieandDEVELOPMENTPancreas is developed from 2 Sources:-(i) Ventral Pancreatic Diverticulum: :- It forms the lower partof the head and urcinateprocess.in Dorsal Pancreatic Diverticulum:- It forms the upper partand of the head, whole of neck, bodytail of pancreas.