Voorbeelden van thenar

• The human thumb also has other muscles in the thenar group (opponens and abductor brevis muscle), moving the thumb in opposition, making grasping possible.

• Both involve a less developed first metacarpal and a nearly absent thenar musculature.

• The thumb has one long flexor and a short flexor in the thenar muscle group.

• They drain into a venous plexus which is situated over the thenar and hypothenar eminences and across the front of the wrist.

• If the median nerve is damaged, the ability to abduct and oppose the thumb may be lost due to paralysis of the thenar muscles.

• It is also occasionally referred to as the thenar branch, or the thenar muscular branch, of the median nerve.

• It also supplies the muscles of the thenar eminence by a recurrent thenar branch.

• The palm consist of two elongated central pads, a hypothenar pad and a thenar pad.

• It is a thenar muscle, and therefore contributes to the bulk of the palm's thenar eminence.

• It can occur with an injury of the median nerve either at the elbow or the wrist, impairing the thenar muscles and opponens pollicis muscle.

• It is one of three thenar muscles.

• It is a fleshy, flat, triangular, and fan-shaped muscle deep in the thenar compartment beneath the long flexor tendons and the lumbrical muscles at the center of the palm.

• Running forward, it passes through, occasionally over, the thenar muscles, which it supplies, and sometimes anastomoses with the terminal portion of the ulnar artery, completing the superficial palmar arch.

• For opposition and therefore precision grips, several factors are necessary: adequate thumb position, adequate length of the thumb, stable joints and adequate thenar muscle or thumb strength.

• In the case of a five fingered-hand it has a finger-like appearance, with the position in the plane of the four fingers, thenar muscle deficiency, and additional length.