adductor pollicis


Also found in: Acronyms.

adductor pollicis

a large triangular muscle that is a powerful adductor of the thumb and opposes the thumb to the rest of the digits in gripping.

adductor pollicis

A hand muscle.

Action
Adducts thumb.
 
Nerve
Ulnar.

Origin
Transverse head (shaft of 3rd metacarpal); oblique head (front base of 2nd metacarpal, trapezoid, capitate bones).
 
Insertion
Medial base of proximal phalanx of thumb.
References in periodicals archive ?
Deforming forces include adduction and supination of the first metacarpal by the adductor pollicis.
The patients were assessed in the first 72 hours of admission to the clinic by classical anthropometry that included percentage of weight loss (% WL), arm circumference (AC), triceps skinfold thickness (TST) and arm muscle circumference (AMC), as well as laboratory parameters such as lymphocytes and albumin, physical examination to investigate the presence of physical signs of malnutrition according Blackburn and Bistrian (1977) recommendations and measurement of adductor pollicis muscle thickness (APMT).
Vecuronium neuromuscular blockade at the diaphragm, the orbicularis oculi, and adductor pollicis muscles.
Lastly, to correct the first webspace contracture, the adductor pollicis and often the first dorsal interosseous need to be released from their origins.
Donati F, Meistelman C: Vecuronium neuromuscular blockade at the adductor muscle of the larynx and the adductor pollicis.
Along with these neurological findings she had the ensuing physical deformities: complete atrophy of the left hypothenar eminence and adductor pollicis muscle, as well as the presentation of claw hand, which is a classic representation of an injury to the ulnar nerve.
Theroux MC, Brandon BW, Zagnoev M, Kettrick RG, Millar F, Ponce C: Dose response of succinylcoline at the adductor pollicis of children with cerebral palsy during propofol and nitrous oxide anestesia.
Using the fatigue protocol described by Lewis and Fulco (1998), we have recently shown untrained women have a slower rate of inspiratory muscle fatigue than untrained men during intermittent isometric exercise (Gonzales and Scheuermann, 2006), consistent with findings in the adductor pollicis muscle (Fulco et al.
However, with non-depolarizing muscle relaxants like Rocuronium, it has been found that the onset of paralysis at laryngeal muscles preceded that at adductor pollicis and hence monitoring of train of four at adductor pollicis may not give the correct picture of intubating conditions.
Also in this hyperabducted position the patient's left adductor pollicis and opponens digiti minimi muscles tested weak on muscle testing, which had previously shown no weakness in a normal position.
The adductor pollicis and the flexor pollicis brevis are intrinsic muscles, imparting valgus stability.