Slides of Anatomy - JU Medicine · Slides of Anatomy Please note : These slides are Dr. Maher...
Transcript of Slides of Anatomy - JU Medicine · Slides of Anatomy Please note : These slides are Dr. Maher...
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Slides of Anatomy
Please note : These slides are Dr. Maher Hadidi’s slides of
spring 2016 and were edited by the Premed Academic Team to fit the slides of spring 2019.
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Upper LimbLecture 6
Anterior compartment of forearm
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Spring 2019 2Dr. Maher Hadidi, University of Jordan
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ForearmLayers:1.Skin 2.Superficial fascia.
a. Cephalic vein.b. Basilic vein.
3.Deep fascia:▪ Sends 2 septums one
to radius and one to ulna which divides the forearm into 2 compartments.
▪ Thickened anterior to the wrist j. to form the flexor retinaculum.
Dr. Maher Hadidi, University of JordanSpring 2019 3
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Spring 2019 Dr. Maher Hadidi, University of Jordan 4
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Carpal tunnel
Dr. Maher Hadidi, University of JordanSpring 2019 5
➢ Carpal bones form a concave arch anterior.
➢ The FR bridges the concave carpal arch to form the carpal tunnel below.
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Flexor retinaculumFR act as a subway for the long flexor tendons between the forearm and the hand
Functions:
▪ hold long flexor tendons to direct their pull while in action.
▪ 6 structures pass above it. ▪ 10 structures pass below it.
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Cubital Fossa
Triangular space anterior to the elbow j.
Borders: ▪ Base→ interepicondylar line.
▪ Lat. → Brachioradialis.▪ Med. → Pronator teres.
Dr. Maher Hadidi, University of JordanSpring 2019 7
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A better view (this is an extra)Numbers 1-5 are the only ones required here:
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Roof of cubital fossa (1 – 8 )
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Floor: 2Ms1.Brachialis2.SupinatorRoof: Median cubital veinContents:1. Median nerve2. Brachial artery 3. Biciptal tendon4. Radial nerve[Mary Beats Bad Roommate]
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Cubital Fossa
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Muscles of the
Anterior
compartment
of Forearm
Three layers:
1.Superficial 4M.2.Middle 1M.3. Deep3M.
Spring 2019 10Dr. Maher Hadidi, University of Jordan
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Superficial layer:-4 Muscles, 1-4.-All originates from CFO.-All supply by median n. except 1 by Ulnar n.
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Intermediatelayer
Consists 1 M FDS.
◼ Origin:3 bones HUR.
◼ Insertion:• Pass deep to flexor
retinaculum.
• Give 4 tendons to medial 4 fingers.
◼ Action:• Flex wrist joint.
• Flex 4 med fingers.
◼ NS:Median N.
Spring 2019 12Dr. Maher Hadidi, University of Jordan
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Spring 2019 13Dr. Maher Hadidi, University of Jordan
Deep layer
3 muscles (1-3)▪ 1 & 2 are
flexors.▪ No. 3 pronate
forearm.
▪ 2 flexors pass below flexor retinaculum.
▪ All by median nerve except tendons to the little and ring fingers of FDP by ulnar nerve.
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