Flexor Pollicis Longus
O, I, A of the Flexor Pollicis Longus
Origin: Middle anterior surface of the radius and the interosseous membrane. The muscle may also originate from the lateral border of the coronoid process of the ulna or the medial epicondyle of the humerus.
Insertion: Palmar aspect of the base of the distal phalanx of thumb
Actions: Flexion of the thumb
Innervation: Anterior interosseous branch of the median nerve (C8, T1).
Vascular Supply: Muscular branches from the radial artery and the anterior interosseous artery from the ulnar artery.
Primary Actions of the Flexor Pollicis Longus:
1. Flexion of the thumb at the interphalangeal joint
Antagonists: Extensor Flexor Pollicis Longus
2. Flexion of the thumb at the carpometacarpal joint
Agonists: Flexor Pollicis Brevis, Adductor Pollicis, Opponens Pollicis
Antagonists: Extensor Pollicis Brevis, Abductor Pollicis Longus
Secondary Actions of the Flexor Pollicis Longus:
1. Assists with flexion of the thumb at the metacarpophalangeal joint
Agonists: Flexor Pollicis Brevis
Antagonists: Extensor Pollicis Brevis, Extensor Pollicis Longus, Abductor Pollicis Longus
2. Assists with flexion of wrist
Agonists: Flexor Carpi Radialis Longus, Palmaris Longus, Flexor Carpi Ulnaris
Antagonists: Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, Extensor Carpi Ulnaris
Note: Flexor digitorum superficialis and flexor digitorum profundus also assist with flexion of the wrist.
Musculoskeletal Anatomy Flashcards
Musculoskeletal Anatomy Flashcards Are you a student or professional therapist who needs to brush up on the musculoskeletal system? Dr. Joseph E. Muscolino DC has developed a comprehensive set of flashcards that will help develop a mind's picture of exactly where the muscles lie under the skin. A highly recommended study aid for students. Great for non students who want an easy comprehensive anatomy guide.
TRAIL GUIDE TO THE BODY
The Trail Guide To The Body is another excellent book to help you learn the musculature of the human body. Though the book is geared toward massage therapists and physical therapist assistants, the book with its illustrations and text helps anyone gain a thorough understanding of the human musculoskeletal system and movement. I highly recommend this book for anyone studying anatomy and believe that MTs, PTAs, and teachers of body movements should have this book in their possession. I also highly recommend this book for the lay person who wants to gain understanding of the muscle, skeletal system and how our bodies move. This book will not disappoint!
The Trigger Point Therapy Workbook – Claire Davies, Amber Davies, and David G. Simons
Basic Clinical Massage Therapy: Integrating Anatomy and Treatment – James H. Clay and David M. Pounds
Trigger Point Therapy for Myofascial Pain – Donna Finando and Steven Finando