Spleen(low spirits)

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An organ that is part of the lymphatic system. 

Spleen is a largest lymphoid organ of the body, 

Also stores the blood, 

Filters blood by removing cellular waste and getting rid of old or damaged blood cells.

Makes white blood cells and antibodies that help you fight infection.

Maintains the levels of fluid in your body.

Produces antibodies that protect you against infection.

Dimension:- spleen are soft, highly vascular and dark purple in colour. 

Thickness -1"

Breath -3"

Length -5"

Weight - 7 oz(ounce)

Ribs -9-11

Shape- Tactrahadral

*Note: Harries dietum: 1,3,5,7,9,11

Situation:-

1. Epigastric

2. Left hypochondrium

Parts:- 

Two ends:-

1. Medial end (posterior end):-rounded.

2. Lateral end or interior end:- more like border. 

Surface:-

Two surface:-

1. Visceral:- concave and irregular. 

2. Diaphragmatic:- convex and smooth. 

Borders:- 

3 borders:-

1. Superior border:- notch near anterior end. 

2. Inferior border:- rounded

3. Intermediate border:- rounded and directed to right. 

Two angles:- 

Anterobasal angle:- also called clinical angle of spleen. 

Posterobasal angle:- junction betn inferior border with lateral or anterior end of spleen. 

Hilum :- lies betn superior and intermediate border. Pierces the branches and tributaries of splenic vessels. 

Relation:-

Peritoneal relation:-

Gastrosplenic ligament. 

Lienorenal ligament. 

Phrenico colic ligament. 

1. Visceral surface:-

1. Fundus of stomach

2. Tail of pancreas

3. Left kidney

4. Left suprarenal gland

5. Splenic flexor of colon

6. Splenic artery

1.Diaphragmatic surface:-

1.Left lung

2.Left pleura

3.Diaphragm

4.Peritoneum

5. 9th, 10th, 11th rib

6. Intercostal muscles

Hilum of spleen:-

1. Splenic artery (5-6 branches)

2. Splenic vein (5-6 tributaries)

3. Nerve plexus

4. Lymphatics

5. Loose connective tissue

6.Tail of pancreas

Blood supply:-

1. Splenic artery branch of coeliac trunk.largest branch of coliac trunk. 

Venous drainage:-

I. Splenic vein drain in to portal vein

Lymphatic drainage;-

Splenic tissue proper has no lymphatics. 

Pancreatico splenic lymph node. 

Nerve Supply:-Mainly sympathetic nerve

Applied Anatomy:-

 Palpitation of spleen:- normally spleen is not palpable, it's palpable when its size is twice to narmal.. 

Splenic puncture:- Common site left 9-10 intercostal space in mid axillary line.

Splenomegaly (Enlargement of spleen):- Malaria and typhoid

Splenectomy:- surgical Removal of spleen. 


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