Intrinsic Muscles of the Hand

📌𝐅𝐨𝐥𝐥𝐨𝐰 𝐨𝐧 𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦:- / drgbhanuprakash
📌𝗝𝗼𝗶𝗻 𝗢𝘂𝗿 𝗧𝗲𝗹𝗲𝗴𝗿𝗮𝗺 𝗖𝗵𝗮𝗻𝗻𝗲𝗹 𝗛𝗲𝗿𝗲:- t.me/bhanuprak...
📌𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗯𝗲 𝗧𝗼 𝗠𝘆 𝗠𝗮𝗶𝗹𝗶𝗻𝗴 𝗟𝗶𝘀𝘁:- linktr.ee/DrGB...
Hypothenar Eminence:
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- muscles of hypothenar eminence are abductor, flexor, opponens digiti minimi, & palmaris brevis;
- muscles of hypothenar eminence are innervated by ulnar nerve;
Thenar Eminence:
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- muscles of thenar eminence are APB, flexor pollicis brevis, & opponens pollicis;
- muscles of thenar eminence, w/ exception of deep head of FPB, which is innervated by ulnar nerve, are supplied by median;
- all thenar & hypothenar muscles, except abductor minimi, originate partly from transverse carpal ligament;
- their insertions are primarily on base of proximal phalanx of thumb & little finger, except for both opponens muscles,
which insert on their respective metacarpals.
- Interossei:
- anatomy:
- 7 in number, 4 are dorsal & 3 volar.
- their origin is from the metacarpal shafts.
- dorsal interossei:
- 1st & 4th dorsal interossei insert on radial aspect of index & ulnar side of ring fingers;
- 2nd & 3rd insert on radial & ulnar sides of long finger respectively;
- occassionally, short masses of muscle originate from carpal bones or from base of metacarpals on dorsum
of hand & appear as enlargements similar to cysts or other bone or soft tissue lesions;
- these accessory muscle masses are similar to muscle belly of extensor digitorum brevis on the dorsum of the foot;
- recognition of these muscle abnormalities is important in diff dx;
- dorsal Interossie abduct index & ring fingers & adduct long finger to either side of a line drawn through its longitudinal axis;
- palmar interossei:
- 1st volar interosseous inserts on ulnar side of index digit, and 2nd & 3rd insert on radial aspect of ring and little fingers;
- volar interossei are thus positioned to adduct these digits toward the long finger;
- site of insertion of these muscles accounts for development of ulnar deviation of little finger if motor branch of ulnar nerve is injured;
- interossei, along w/ 4 lumbricals, also flex MP & extend IP joints;
- radial interossei tend to insert into bone w/ lesser insertions into extensor hood;
- volar interossei & lumbricals usually insert into lateral band expansion;
- lumbricales arise from tendonns of FDP in mid-palmar area & insert into radial aspect of dorsal hood.
- innervation:
- all interossei & 3rd & 4th lumbricale s are innervated by ulnar nerve;
- first and second lumbricales are supplied by median;
#intrinsicmusclesofthehand #handmuscles #musclesofhand #musclesofthehand #upperlimbanatomy #upperlimbmuscles #anatomy #neetpganatomy #mbbsanatomy #usmleanatomy

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[@kaushalya898]

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[@Aryan-qj2th]

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[@doctorbhanuprakash]

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[@doctorbhanuprakash]

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[@rameshwarpadole6051]

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[@samanthamaria7056]

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[@doctorbhanuprakash]

It's my pleasure

[@PuenthaiThephmontha]

wrong mark for Trapezium bone (in APB muscle)

[@gowthami8968]

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[@Dr.Versifier_thependoc]

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[@doctorbhanuprakash]

Nice

[@nelsonmwale136]

Thank you Dr.. i really thought it was so hard to know all the 20 muscles but you simplified it.....

[@doctorbhanuprakash]

Glad it was helpful!

[@hdgodau]

Thank you, Master !

[@Trustedissues]

God bless u🙏

[@aasemahsan]

10:25
11:58 Thenar mucles
13:54 Abductor Pollicis Brevis
15:09 Flexor Pollicis Brevis
16:35 Opponens Pollicis
17:49 Adductor Pollicis

[@prakashmahapatra7561]

Thanks Mam 😀😀😀... app ke lecture dekh ke concepts clear ho jate hai..

[@doctorbhanuprakash]

Tysm

[@harishKumar-gk5th]

good work
but 14.19 she marked trapezium wrong,

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Thank you

[@doctorbhanuprakash]

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Why the distal phalange remains unaffected (extended) in duputryens contracture please???

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[@doctorbhanuprakash]

Tysm

[@sarowarhossainforstudy2484]

**Correction: You have indicated hamate bone as trapezium

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Thank you😃😃

[@doctorbhanuprakash]

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[@kaushalya898]

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[@doctorbhanuprakash]

Glad you think so!

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Extensors compartment of forearm ms video ???

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[@bommarthisrikanth4548]

Thanks mam