Eighth sessionEighth session

Forearm Forearm (Antibrachium)(Antibrachium)

BoundaryBoundary Superficial veins and nervesSuperficial veins and nerves Antibrachial FasciaAntibrachial Fascia Antibrachial musclesAntibrachial muscles Antibrachial Vessels and nervesAntibrachial Vessels and nerves

Boundary

Superficial nerves and veinsSuperficial nerves and veins

Deep fasciaDeep fascia

Flexor Retinaculum

Extensor Retinaculum

MusclesMuscles

Antromedial muscles (flexor & pronator)Antromedial muscles (flexor & pronator)

Postrolateral muscles (extensor & supinator)Postrolateral muscles (extensor & supinator)

MusclesMuscles

Antromedial muscles (flexor & pronator)Antromedial muscles (flexor & pronator)

Superficial ( 5 muscles)Superficial ( 5 muscles)

Deep ( 3 muscles)Deep ( 3 muscles)

note :Median nerve crosses between of two heads of this muscle

Pronator teres

Palmaris longus

Note: median nerve crosses behind of the tendon of this muscle in wrist

note :ulnar nerve crosses between of two heads of this muscle

Flxor carpi ulnaris

Deep musclesDeep muscles

Osteo-aponeurotic canal

Digital fibrose sheath

Annular p.

Cruciform p.

Vincula tendinumVincula tendinum

1- vincula brevis1- vincula brevis 2- vincula longa2- vincula longa

Proximal

phalanx

MusclesMuscles

Postrolateral muscles (extensor & supinator)Postrolateral muscles (extensor & supinator) Superficial (7 muscles)Superficial (7 muscles) Deep (5 muscles)Deep (5 muscles)

Intertendinous connection

Dorsal digital expansion

MusclesMuscles

Postrolateral muscles (extensor & supinator)Postrolateral muscles (extensor & supinator) Deep (5 muscles)Deep (5 muscles)

Anatomical snuffbox

Floor: styloid process

Scaphoid and trapezium

Base of first metacarp

Deep nerves and vesselsDeep nerves and vessels

Nerves:Nerves: MedianMedian UlnarUlnar Radial Radial Arteries:Arteries: RadialRadial Ulnar Ulnar

Median nerveMedian nerve

Branches of Median nerve

1- Muscular br. 2- Articularis br. 3- Ant. Interosseus br. 4- Palmar cutaneus br. 5- A communicating br.

Ulnar nerveUlnar nerve

Branches of ulnar nerve

1- Muscular br. 2- Articularis br. 3- Dorsal br. 4- Palmar cutaneus br.

Radial nerveRadial nerve

Branches of radial nerve

1-Deep (post. Interosseous) br.

2- superficial br.

DeepDeep vesselsvessels

Arteries:Arteries: Radial artery.Radial artery. Ulnar artery.Ulnar artery.

Radial arteryRadial artery

Branches of radial artery

1- recurrent radial2- Muscular3-palmar carpal4- superficial palmar5-dorsal carpal

Ulnar arteryUlnar artery

Branches of ulnar artery

1- ulnar recurrent (ant & post)

2- Muscular

3- common interosseous Ant .interosseous Post.interosseous/recurrent interosseous

4 - palmar carpal

5- dorsal carpal