MMT Flexor pollicis longus & brevis. 1. It lies in the same plane as the flexor digitorum profundus. 2. The adductor hallucis is a two-headed muscle that is responsible for flexing and contracting the big toe, and reinforcing the arch of the foot. 3. It originates from the bottom portion of the radius, which is a bone in the forearm. Blood supply to the Flexor pollicis longus is from a branch (anterior interosseous artery) of the ulnar artery. Available from: Ballesteros DR, Forero FL, Ballesteros LE. DOI: 10.1590/1413-78522015230200955. Eur J Trauma Emerg Surg. Gantzer muscle. Occasional head of flexor pollicis longus muscle: a study of its morphology and clinical significance. Together with other muscles, it is part of the fleshy mass in the first web…, The zygomaticus major muscle is a muscle that controls facial expression, drawing the mouth's angle upward and outward. 2012;38(2):129-37. Flexor pollicis longus muscle. It is innervated by the median nerve via the anterior interosseous nerve (7th and 8th cervical nerve root). http://www.youtube.com/watch?v=3CJ77o6BvKU, Anterior interosseous nerve: anatomical study and clinical implications, http://www.youtube.com/watch?v=YfBw3Xcdg0s, http://www.youtube.com/watch?v=PEasEVjW874, http://www.youtube.com/watch?v=M460FpCTOhU, https://www.physio-pedia.com/index.php?title=Flexor_Pollicis_Longus&oldid=257259. The flexor pollicis longus is the only muscle that flexes the interphalangeal joints of the thumb. The flexor pollicis longus (FPL) is a long muscle located at the deep layer with flexor digitorum profundus and pronator quadratus in the anterior compartment of the forearm. It can compress the median nerve and anterior interosseus nerve; the later may result in paresis or paralysis of the FDP, FPL, and pronator quadratus and the former leading to paralysis of some muscles in thenar compartment as well as sensory deficits. Our website services, content, and products are for informational purposes only. Common Conditions Of The Thumb - Everything You Need To Know - Dr. Nabil Ebraheim. Moore KL, Dalley AF, Agur AM. Caetano EB, Sabongi JJ, Vieira LÂ, Caetano MF, Moraes DV. Wikipedia. https://en.wikipedia.org/wiki/Flexor_pollicis_longus_muscle, Accessory head of the flexor pollicis longus muscle: anatomical study and clinical significance, https://www.statpearls.com/articlelibrary/viewarticle/36137/. It is one of the extrinsic muscles of the hand.. Summary. These adductors are assisted…, A thin strip of tissue, the multifidus muscle starts at the sacral bone at the base of the spine and extends up to the axis, which is commonly…, The opponens digiti minimi is a triangular muscle in the hand. The flexor pollicis longus muscle is located in the lower half of the arm, from the elbow down. Drake RL, Vogl W, Mitchell AW, Gray H. Gray's anatomy for Students 2nd ed. Available from: ACM OTA Class of 2016. 7th ed. Clinically oriented anatomy. It may also assist in wrist joint flexion. The flexor pollicis longus muscle is located in the lower half of the arm, from the elbow down.It is an anatomical part that is unique to humans. Doi: 10.1007/s00068-011-0079-4. Nabil Ebraheim. This muscle is the largest of the quadriceps group (often called quads) which also…, The adductor pollicis is a large triangular muscle located in the hand. Physiopedia articles are best used to find the original sources of information (see the references list at the bottom of the article). The muscle forms a flattened large tendon, that courses through the carpal tunnel, crossing three joints of the hand to attach at the base of the distal phalanx. Linburg RM, Comstock BE. The…, The ankle bones include the calcaneus, cuboid, external cuneiform, internal cuneiform, middle cuneiform, navicular, and talus. This muscle is located between the two muscles which facilitate flexion of the thumb, namely the Flexor Pollicis Brevis and the Abductor Pollicis. The end of the flexor pollicis longus is found at the tip of the thumb. Available from: Nabil Ebraheim. The Flexor Pollicis Longus muscles moves through the hand as a tendon. If the tendon in the flexor pollicis longus muscle suffers damage or injury, recovery may take longer than other hand injuries due to the lack of blood flow to tendons. It also serves as accessory flexors of the metacarpophalangeal of the proximal phalanx and carpometacarpal joints of the first metacarpal. Read more, © Physiopedia 2020 | Physiopedia is a registered charity in the UK, no. Case Presentation; Flexor Pollicis Longus Tendon Injury . Healthline Media does not provide medical advice, diagnosis, or treatment. [4] the accessory head (Gantzer's muscle)[5] of FPL has 47.1% originating from flexor digitorium superficialis, 29.4% from epicondyle of the humerus, and 23.5% is from coronoid process of the Ulna in the forearm. 1979;4(1):79-83. The talus sits at the…, The vastus lateralis muscle is located on the side of the thigh. It is located between two muscles that move and flex the thumb, the flexor pollicis brevis and the abductor pollicis. An anatomical study. Available from: Caetano EB, Vieira LA, Sabongi Neto JJ, Caetano MBF, Sabongi RG. In a study by Ballesteros et al. Sign up to receive the latest Physiopedia news, The content on or accessible through Physiopedia is for informational purposes only. J Hand Surg Am. This tendon travels through the carpal tunnel, the point of connection between the palm and forearm, and into the thumb. The muscle then runs down the side of the forearm and attaches to the interosseus membrane of the forearm, which serves as the base of attachment for other muscles. 2015;23(2):72-75. It travels through the carpal tunnel which is the point connecting the palm and forearm, and goes into the thumb. Physiopedia is not a substitute for professional advice or expert medical services from a qualified healthcare provider. In: Varacallo M. editor. Flexor digitorum profundus and FPL muscles are usually affected; their noticeable shortening through fibrosis explains the classic flexion deformity of Volkmann’s Ischaemic contracture.[11]. Doi: 10.1016/s0363-5023(79)80110-0. Available from: I give my consent to Physiopedia to be in touch with me via email using the information I have provided in this form for the purpose of news, updates and marketing. Anomalous tendon slips from the flexor pollicis longus to the flexor digitorum profundus. Baltimore, MD: Lippincott Williams & Wilkins, 2014. that causes muscle and nerve ischemia and or eventual necrosis; as the necrotic tissue recovers, scar tissue contraction results in a shortening of the affected tissue. When refering to evidence in academic writing, you should always try to reference the primary (original) source. © 2005-2020 Healthline Media a Red Ventures Company. It is an anatomical part that is unique to humans. All rights reserved. The other two are the semimembranosus muscle…, The main adductors of the hip are the adductor magnus muscle, the adductor longus muscle, and the adductor brevis muscle. 1173185. The flexor pollicis longus is a muscle in the forearm and hand that flexes the thumb. Philadelphia : Churchill Livingstone/Elsevier, 2010. If you believe that this Physiopedia article is the primary source for the information you are refering to, you can use the button below to access a related citation statement. The muscle extends into the hand and aids with thumb flexion. Flexor pollicis longus (FPL) is one of the two muscles that make up the third layer of the anterior compartment of the forearm along with the flexor digitorum profundus.It is a deep muscle under abductor pollicis brevis muscle. Benson D, Miao K. Anatomy, Shoulder and Upper Limb, Hand Flexor Pollicis Longus Muscle. Acta Ortopedica Brasileira. [1] Though it is situated at the forearm, it is classified as part of the extrinsic muscles of … It is bordered by the supinator muscle, which also extends from the radius, at the top. [10], Volkmann’s contracture, a secondary complication compartment syndrome. The extensor…. 2020. Trigger thumb is an inability of the FPL tendon to smoothly glide through the pulley system de to pulley stenosis resulting from tenosynovitis, and most commonly involves the A1 pulley, The presence of the accessory head of FPL has several clinical implications. Flexor pollicis longus muscle (Musculus flexor pollicis longus) Flexor pollicis longus, as its name suggests, is a long muscle of the forearm.It belongs to the deep flexors of the forearm, along with flexor digitorum profundus and pronator quadratus.Since it lies in the forearm but inserts in the hand, flexor pollicis longus is also classified as an extrinsic muscle of the hand. [1] Though it is situated at the forearm, it is classified as part of the extrinsic muscles of the hand as it's function is seen in thumb movement.[2]. Pettitt DA, McArthur P. Clinical review: Volkmann's ischaemic contracture. In most cases Physiopedia articles are a secondary source and so should not be used as references. The flexor pollicis longus traverses the hand as a tendon. [8][9], A tendinous interconnection FPL and FDP of the second digit known as the Linburg-Comstock anomaly may lead to the inability to solely flex the distal IP of the thumb and the index finger. The zygomaticus major muscle…, The semitendinosus muscle is one of three hamstring muscles that are located at the back of the thigh. Top Contributors - Uchechukwu Chukwuemeka and Kim Jackson, The flexor pollicis longus (FPL) is a long muscle located at the deep layer with flexor digitorum profundus and pronator quadratus in the anterior compartment of the forearm. Written by the Healthline Editorial Team. Hemmady et al[6] reported that of the 66.6% accessory head of FPL found, 55.5% originates from the medial epicondyle of the humerus while 16.6% is from the coronoid process of the ulna. It originates from the mid half of the anterior surface of the radius and adjacent half of the interosseous membrane. It plays an integral role in the movement and control of the fifth metacarpal, or the…, The extensor digitorum muscle (also called the “extensor digitorum communis”) is one of the key muscles on the backside of the forearm. It passes through the carpal tunnel.. The flexor pollicis longus is tested holding stationary the proximal phalanx of the thumb is held while flexing the distal phalanx against resistance. It also flexes proximal phalanx and first metacarpal at the metacarpophalangeal (MP) along with carpometacarpal (CM) joints but it mainly flexes the distal phalanx of the thumb. The FPL mainly flexes interphalangeal joint of the distal phalanx of the thumb. Available from: Dr. Abdul Hameed Senior Consultant Plastic Surgeon. FPL has also been found to take its origin from medial epicondyle of the humerus, coronoid process of the Ulna, and from flexor digitorium superficialis[3]. Anatomy Of the Flexor Pollicis Longus Muscle - Everything You Need To Know - Dr. Nabil Ebraheim. That is usually the journal article where the information was first stated.
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