thenar


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Related to thenar: hypothenar, thenar space

thenar

 [the´nar]
1. the fleshy part of the hand at the base of the thumb.
From Dorland's, 2000.
2. pertaining to the palm.

the·nar

(thē'nar), [TA] This word is a noun, not an adjective.
Term applied to any structure in relation with the base of the thumb or its underlying collective components. Synonym(s): thenal See: thenar eminence.
[G. the palm of the hand]

thenar

/the·nar/ (the´ner)
1. the fleshy part of the hand at the base of the thumb.
2. pertaining to the palm.

thenar

(thē′när′)
n.
The fleshy mass on the palm of the hand at the base of the thumb.
adj.
Of or relating to the thenar.

thenar

[thē′när]
Etymology: Gk, palm of the hand
pertaining to any structure in relation to the ball of the thumb, such as the three thenar muscles.

the·nar

(thē'nahr)
1. [TA]
Synonym(s): thenar eminence.
2. Applied to any structure in relation to the thenar eminence or its underlying collective components.
[G. the palm of the hand]
References in periodicals archive ?
At further stages of the condition, in situations when the nerve experiences severe compression, in thenar region pain and power and skill loss arise in hands and tenar region (in abductor pollisis brevis and opponens brevis muscles innervated by motor branch of median nerve) atrophy is seen.
This would manifest with muscle atrophy in the thenar muscles and/or difficulty approximating the tip of the thumb with the opposing fingertips (Figure 3).
This multi-site pilot study compares standard clinical laboratory hemoglobin levels pre- and post-transfusion to values obtained via a prototype near infrared spectrometer (NIRS) that employs experimental software to derive a peripheral hemoglobin concentration, or Tissue Hemoglobin Index (THI) at the thenar eminence (25) This pilot study seeks to collect preliminary data on the relationship between the two methodologies for the purpose of exploring the potential of MRS to perform additional non-invasive monitoring in the critically ill patient population.
To start this phase, the SC sensors were attached with self-adhesive collars to the thenar and hypothenar eminences of the palm of the participants' left hands.
There was complete absence of thenar musculature consistent with a Buck-Gramcko type III thumb hypoplasia.
Fingers slender with well-formed, circular to subtruncate discs; width of third finger disc equal to diameter of tympanum; basal web between second and third and third and fourth fingers; no web between first and second fingers; relative lengths of fingers: 3 > 4 = 2 > 1; palmar and thenar tubercles moderately developed; one prominent, rounded subarticular tubercle on each finger; first finger with a slight basal enlargement; no prepollical spines or nuptial pads.
The numbness usually begins in the thick muscle just below the thumb, termed the thenar muscle, affecting primarily the dominant hand.
The InSpectra StO2 System consists of a monitor, an optical cable and a single-use sensor that is easily applied to the thenar eminence (the muscle at the base of the thumb).
Patients with comorbid diseases which may affect peripheral nerves, splint use, a history of CTS surgery, forearm fracture, steroid injection into the carpal tunnel within the previous three months, polyneuropathy on electrophysiological examination, and severe CTS [mMDL of >6 m/sec, the absence of a median nerve compound muscle action potential (CMAP), or the presence of thenar atrophy] were excluded.
Motorevoked potentials were recorded from the thenar muscles of the right hand, using a standard EMG machine and surface electrodes.
Signs of OA in the hands include limited closure, bony enlargement of distal and proximal interphalangeal joints, carpometacarpal squaring, limited thumb extension, thenar wasting, and thumb in palm formation.
Fatigue of paralyzed and control thenar muscles induced by variable or constant frequency stimulation.