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The palmar interosseous muscles adduct the fingers towards the middle finger. This is in contrast to the dorsal interossei , which abduct the fingers away from the middle finger. In addition (like dorsal interossei ) they flex the finger at the metacarpo-phalangeal joint and extend the finger at the interphalangeal joint and thus assist the ...
4 Dorsal interossei - Abduct the digits away from the 3rd digit (away from axial line) and are bipennate. 3 Palmar interossei - Adduct the digits towards the 3rd digit (towards the axial line) and are unipennate. This is often remembered by the mnemonic PAD-DAB, as the Palmar interosseous muscles ADduct, and the Dorsal interosseous muscles ...
The intrinsic muscle groups are the thenar and hypothenar (little finger) muscles; the interossei muscles (four dorsally and three volarly) originating between the metacarpal bones; and the lumbrical muscles arising from the deep flexor (and which are special because they have no bony origin) to insert on the dorsal extensor hood mechanism.
The thenar eminence refers to the group of muscles on the palm at the base of the thumb. The three muscles composing the thenar eminence are the abductor pollicis brevis, flexor pollicis brevis and opponens pollicis. [5] The other two muscles that influences movement of the thumb are the adductor pollicis and the first dorsal interosseous muscle.
Superficial palmar arch, common palmar digital arteries, deep palmar arch, dorsal digital artery: Nerve: Third and fourth deep branch of ulnar nerve, first and second median nerve: Actions: Flex metacarpophalangeal joints, extend interphalangeal joints: Identifiers; Latin: musculi lumbricales manus: TA98: A04.6.02.065: TA2: 2532: FMA: 37385 ...
Over the last two and a half years, 19 states – home to more than a third of Americans – have passed laws that require pornography websites to confirm a user’s age by checking a government ...
Each finger is provided with two interossei (palmar or dorsal), with the exception of the little finger, in which the abductor digiti minimi muscle takes the place of one of the dorsal interossei. [2] The first dorsal interosseous muscle is larger than the others. Between its two heads, the radial artery passes from the back of the hand into ...
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