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Flexor Carpi Radialis

It originates via a common flexor origin from the medial epicondyle of humerus. The entire flexor carpi radialis lies oblique on the forearm, as it travels via its emergence towards its insertion in the anatomical situation that is supinated forearm.

Interactive Anatomical Interface

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biceps brachii (long head)
Biceps brachii (short head)
Brachioradialis
flexor carpi radialis
palmaris longus
pronator teres
brachialis
Flexor digitorum superficialis
Extensor carpi radialis longus
Supinator
pronator teres
flexor pollicis longus
coracobrachialis
Tricep brachii (long head)
extensor carpi radialis brevis
extensor digitorum
flexor digitorum profundus
flexor carpi ulnaris
Deltoid
Subscapularis
Teres Major
Teres Minor

Highlight
biceps brachii (long head)
Biceps brachii (short head)
Brachioradialis
flexor carpi radialis
palmaris longus
pronator teres
brachialis
Flexor digitorum superficialis
Extensor carpi radialis longus
Supinator
pronator teres

Highlight
flexor pollicis longus
coracobrachialis
Tricep brachii (long head)
extensor carpi radialis brevis
extensor digitorum
flexor digitorum profundus
flexor carpi ulnaris
Deltoid
Subscapularis
Teres Major
Teres Minor
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supraspinatus
infraspinatus
deltoid
teres minor
teres major
triceps brachii (lateral head)
"biceps brachii
brachialis
triceps brachii (medial head)
brachioradialis
extensor carpi radialis longus
extensor carpi radialis brevis
abductor pollicis longus
extensor digitorum
extensor carpi ulnaris
anconeus
flexor carpi ulnaris
Dorsal interosseus
coracobrachialis
supinator
abductor pollicis longus
extensor pollicis longus
extensor indicis
flexor digitorum profondus
flexor digitorum superficialis
extensor digiti minimi

Highlight
supraspinatus
infraspinatus
deltoid
teres minor
teres major
triceps brachii (lateral head)
biceps brachii
brachialis
triceps brachii (medial head)
brachioradialis
extensor carpi radialis longus
extensor carpi radialis brevis
abductor pollicis longus

Highlight
extensor digitorum
extensor carpi ulnaris
anconeus
flexor carpi ulnaris
Dorsal interosseus
coracobrachialis
supinator
abductor pollicis longus
extensor pollicis longus
extensor indicis
flexor digitorum profondus
flexor digitorum superficialis
extensor digiti minimi
Related:   Left Colic Vein

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Flexor Carpi Radialis

Flexor Carpi Radialis

Insertion

It inserts on to the anterior sides of the bases of second and third metacarpals

Structure

Located on the upper half of the forearm, the flexor carpi radialis is a little flattened distally with a fleshy belly. Starting one-third of the way down the forearm its tendon is flat, wide, and directed proximally and also circular distally. The muscle fibers of the belly split and for a short distance travel downwards to each aspect of the tendon. Due to this type of arrangement, the wide proximal end of the tendon generally gets slightly lowered within the bulging V-shaped distal ends of the belly whenever the muscle is strained. The muscle fibers on the radial portion of the tendon afterwards blend visually with the shape of the brachioradialis. Just proximal towards the wrist, specifically whenever the wrist is flexed as well as radially deviated the cordlike tendon of the flexor carpi radialis is very prominent. It is located just over the midline, towards the radial aspect of the forearm. This tendon is thicker than the tendon of the palmaris longus, whenever the hand is straight is pointed toward the index finger, and also goes out of vision at the base of the hand.

Nerve Supply

Median nerve.

Arterial Supply

Radial artery.

Actions

  • It flexes the wrist together with flexor carpi ulnaris
  • together with brachioradialis, it abducts the wrist
Related:   Anterior Compartment of The Leg – Muscles, Arteries, Nerves

Attachments

  • The flexor carpi radialis muscle has a large and protuberant tendon in the distal half of the forearm and also is lateral towards the palmaris longus.
  • The tendon of the flexor carpi radialis muscle is situated just lateral towards the midline, unlike the tendon of the flexor carpi ulnaris, which creates the medial margin of the distal forearm.
  • In this position, the tendon could be easily palpated, making it an essential landmark for finding the pulse in the radial artery, which lies directly lateral to it.
  • The tendon of the flexor carpi radialis travels via a chamber created by bone as well as fascia at the lateral aspect of the anterior surface of the wrist and also attaches to the anterior sides of the bases of metacarpals II and III.
  • The flexor carpi radialis is a highly effective flexor of the wrist and can also abduct the wrist.

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By | 2018-08-08T00:00:00+00:00 August 8th, 2018|Anatomy, Muscles, Upper Limb|0 Comments