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Muscles/Hand

Hand

Flexor retinaculum of left wrist

FLEK-sor reh-tih-NAK-yoo-lum

The flexor retinaculum (transverse carpal ligament) is a thick band across the palmar wrist forming the carpal tunnel roof. It holds flexor tendons in place during wrist motion, vital for grip strength in fitness. Imbalances affect hand endurance.

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Common Pain & Injury

Wrist pain or numbness in thumb/index fingers from compression. Typing or weights exacerbate. See doctor for night pain or dropping objects.

Anatomy & Function

Origin

Scaphoid and trapezium (thumb-side wrist bones)

Insertion

Pisiform and hamate hook (pinky-side wrist bones)

Actions

  • Wrist stabilization
  • Tendon sheath compression

Innervation

N/A (ligament)

Muscle Relationships

Antagonists

Extensor retinaculum

Synergists

Flexor carpi radialisFlexor carpi ulnaris

Trigger Points

N/A; not a muscle, but tension refers via compressed tendons.

Stretches

1Wrist flexor glide
2Phalen's test stretch
3Prayer stretch

Common Conditions

Carpal tunnel syndromeWrist ligament sprain

Anatomical Parts

Flexor retinaculum of left wrist

FAQ

What is flexor retinaculum

Wrist ligament holding flexor tendons; forms carpal tunnel roof.

Flexor retinaculum pain

Often signals carpal tunnel; nerve gliding exercises help.

Flexor retinaculum left wrist tight

Stretch wrist flexors and improve ergonomics.

Exercises for Flexor retinaculum of left wrist

20

Also Works Flexor retinaculum of left wrist

10

Related Hand Muscles

Abductor digiti minimi of left hand
Located in the pinky side of the left palm, this muscle fans out the little finger for grip adjustments in sports or tools. It supports fine motor control and power grip stability. Climbers and grip athletes rely on it for pinky strength.
Abductor digiti minimi of right hand
In the right hand's hypothenar area, this muscle abducts the pinky finger, enhancing grip width for tools or sports. Crucial for musicians and weightlifters needing precise finger spread. Builds hand endurance.
abductor pollicis brevis
The thenar muscle at the thumb base abducts the thumb for pinch grips and opposition. Essential for fine tasks like texting or tools. Thumb trainers value it for dexterity.
adductor pollicis
Deep thumb adductor pulls thumb toward palm for key pinch strength. Vital for gripping keys or tools. Handstrength pros train it hard.
Flexor digiti minimi brevis of left hand
In the left hand's hypothenar eminence, this muscle flexes the pinky finger at its base for power grips. Key for musicians and rock climbers needing pinky strength. Enhances grip variety in fitness.
Flexor digiti minimi brevis of right hand
Right hand hypothenar muscle flexing pinky MCP joint for grip power. Essential for right-handed tools.
flexor pollicis brevis
This thumb muscle in the thenar eminence flexes the thumb's base, critical for pinching and precision grips like turning keys or holding tools. It's key for hand strength in weightlifting or racket sports. Imbalances lead to thumb weakness.
Flexor retinaculum of right wrist
The right wrist's flexor retinaculum secures flexor tendons through the carpal tunnel, enabling smooth wrist flexion in daily and athletic tasks. It supports grip integrity during pulls and presses. Dysfunction leads to hand fatigue.

Hand Pain Guide

Common causes and relief

Activities & Sports

See which activities use Flexor retinaculum of left wrist

Pinpoint·Interactive 3D Anatomy & Exercise Guide