2023年11月13日 · Flexor pollicis brevis is a thenar muscle of the hand that flexes the thumb. Learn more about its anatomy and function at Kenhub!

The flexor pollicis brevis is a muscle in the hand that flexes the thumb. It is one of three thenar muscles. [1][2] It has both a superficial part and a deep part. The muscle's superficial head arises from the distal edge of the flexor retinaculum and the tubercle of the trapezium, the most lateral bone in the distal row of carpal bones. [1] .

Flexor Pollicis Brevis is the small, narrow muscle consisting of the outer and inner portions. The outer portion is termed as the superficial head and the inner portion is termed as the deep head of the muscle.

2023年11月13日 · The flexor pollicis brevis is the most medial of the thenar muscles. It arises by two muscle heads (superficial and deep) which are separated by the tendon of flexor pollicis longus. The superficial head originates from the flexor retinaculum and the tubercle of the trapezium bone, while the deep head originates from the trapezoid and capitate ...

2023年11月5日 · The flexor pollicis brevis (FPB) is a short, broad intrinsic muscle of the hand that helps with thumb opposition. It is one of the 3 thenar muscles, the other two being the opponens pollicis and abductor pollicis brevis. The muscle is palpable on the thenar eminence when you flex or fold your thumb across the palm against some resistance. Origin.

2021年12月14日 · Interactive 3D model and details on the anatomy of the flexor pollicis brevis muscle covering its origin, insertion, action, innervation and blood supply.

The flexor pollicis brevis muscle consists of two heads: - a large superficial head, which originates from the tubercle of trapezium bone and the flexor retinaculum of hand; - a small deep head, which originates from the palmar aspects of the capitate and trapezoid bones.

2023年4月28日 · The flexor pollicis brevis is the name of the tiny and broad intrinsic muscle of the hand. It is a part of the thenar muscles grouping together with the opponens pollicis, adductor pollicis, and abductor pollicis brevis. The heads of the …

2024年6月27日 · The flexor pollicis brevis (FPB), the short flexor of the thumb, is located medial to the abductor pollicis brevis. It has two bellies, superficial and deep head, they are located on opposite sides of the tendon of the flexor pollicis longus.

2021年8月2日 · The flexor pollicis brevis muscle is a short muscle of the thenar eminence located distal to the abductor pollicis brevis. It is one of the intrinsic muscles of the hand. The muscle is composed of a superficial head and a variably sized deep head. Summary. origin: superficial head: tubercle of the trapezium and flexor retinaculum