Synonyms: Extensor expansion, Extensor hood, Dorsal expansion, Dorsal hood, Dorsal aponeurosis Components: Extrinsic tendons Intrinsic tendons Soft-tissue stabilizing structures Extrinsic tendon Extensor Digitorum Communis (EDC; may be absent in little fingers) ± Extensor Indicis Proprius (EIP; usually ulnar to EDC) ± Extensor Digiti Minimi (EDM; ulnar to EDC) passes dorsally…
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Intrinsic Muscles of Hand : Mnemonics
Hand comprises of 10 compartments: Thenar Adductor Hypothenar Palmar interosseous (3) Dorsal interosseous (4) Thenar and Adductor Muscles Thenar and Adductor muscles can be remembered using following technique: Additionally, thenar, adductor and hypothenar muscles of hand can be remembered in their relative position in palm using the mnemonics given below….
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Intrinsic thumb muscles : Tricks to Remember
The muscles of thumb will make 2 compartments – thenar compartment and adductor compartment. Mnemonic: Do it yourself as shown in the image below. Put your left hand with curled in middle/long finger above the palm of right hand. There are 2 muscle layers in this side of the hand….
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Kocher Criteria for Septic Arthritis : Mnemonic
Kocher criteria can help to differentiate between spetic arthritis and transient synovitis in a case of non-traumatic painful hip in a child. A restrospective study in 104 pediatric patients has depicted that meeting 3 out of 4 crtieria would miss 52% cases and is of limited usefulness in detecting septic…
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Hernia – Inguinal Hernia
Groin is the area between abdomen and the upper thigh on either sides of pubic symphysis. Protrusions of the abdominal contents through the weak areas in this region are grouped under groin hernias. Groin Hernia can be classified into Inguinal and Femoral Hernias. Please go though another article of the…
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Straight Leg Raising Test (SLRT) – Pathophysiology
Epineurium of sciatic nerve (like all other nerves) is continuous with the duramater withing the spinal canal which is firmly attached to the foramen magnum above and the filum terminale below. In the elastic neuromeningeal pathway, tension applied at one point will spread through out the length of spine until…
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Goodsall’s rule : Mnemonic
Synonym: Goodsall-Salmon’s law In anal fistula, goodsall’s rule predicts the type of track and location of internal opening. An anterior external opening is more likely to have a straight track while a psoteriorly placed external opening is more likely to have a curved track. Mnemonic: Think of a dog with…
Emergency Medicine
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IV Cannula Color Code : Tricks to Remember
Present day IV cannulae are available from sizes 14 gauge to 26 gauge with universal color coding for easy recongnition of IV cannula. Smaller the gauge, wider is the cannula and has higher flow rate. Normal adult size: 18-20 G Situations requiring rapid fluid transfusion like trauma: 14-16 G Preferred…