It also gives nerves to parts of the forearm, wrist, and hand. The thenar eminence helps to control the fine movements of the thumb, including being able to grab, grip, and pinch objects. The abductor pollicis brevis and the flexor pollicis brevis allow for movement of the thumb away or towards the other fingers of the hand. The opponens pollicis enables the thumb to be opposable. These movements allow us to carefully handle and manipulate items and objects.
There are several conditions that can affect the thenar eminence, leading to a decrease in function or even atrophy of the muscles. Try the exercises below to maintain the strength of the thenar eminence.
Raise your hand, making sure that your thumb is positioned away from your fingers. Lay your hand flat on a table or other hard surface. Place a rubber band around your hand so it sits at the base of your finger joints. Gently move your thumb away from your other fingers as far as it can go.
Hold this position for 30 to 60 seconds and then release. Pick up a tennis or similar-sized ball in one hand. Squeeze the ball as hard as you can for between 3 and 5 seconds before slowly relaxing your grip. Pick up a soft foam ball between your thumb and index finger. Pinch the ball, holding the position between 30 and 60 seconds. Slowly release the pinch. Hold your hand up in front of you. Gently touch your thumb to each of your other four fingers, holding each position for 30 to 60 seconds.
The thenar eminence is a group of three small muscles at the base of the thumb. The thenar eminence can be affected by a variety of conditions that can lead to a decrease in range of movement or muscle function.
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Thenar Eminence Overview. Medically reviewed by William Morrison, M. Become a Gold Supporter and see no ads. Log in Sign up. Articles Cases Courses Quiz. About Recent Edits Go ad-free. Edit article. View revision history Report problem with Article. Citation, DOI and article data. Gaillard, F. Thenar eminence. Reference article, Radiopaedia. Thenar eminences Thenar muscles Thenar group Short muscles of the thumb. URL of Article.
See also hypothenar eminence. Clinically oriented anatomy. Read it at Google Books - Find it at Amazon 2. Last's anatomy, regional and applied. Churchill Livingstone. Read it at Google Books - Find it at Amazon 3. Susan Standring. Gray's Anatomy. ISBN: Related articles: Anatomy: Upper limb.
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