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手肌
学习目标
完成本学习单元后，你将学会：
- 将手肌分为3组。
- 熟悉手部鱼际和小鱼际的组成。
- 理解手肌的主要功能。
浏览图谱
虽然手的握持能力主要来源于前臂肌，但手部能够利用其众多小肌肉，完成独有的精细、灵巧的动作。这些肌肉也被称为手固有肌，即其起止点均位于手部。
手固有肌通常分为三组：中间群（掌部）、外侧群（鱼际）和内侧群（小鱼际）。
手肌也可根据五个亚区进行分组，其中掌部肌群进一步分为三组。在此仅作了解。
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:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/thenar-eminence-2/UyU6S5Qg1rn2yxOzc3GA_thenar-eminence-2.jpg "大鱼际肌 (Thenar muscles)；图像：Yousun Koh"){kind=logo}
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:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/musculus-adductor-pollicis/F8SGcXD8C3dg3IiauW1Bog_N9fzgyysnd_Musculus_adductor_pollicis_1.png "拇收肌 (Adductor pollicis muscle)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/flexor-pollicis-brevis-muscle/DkRrCY8tQ2AZGnsKTKVp9w_718_M._flexor_pollicis_brevis_FKT_copy_2.png "拇短屈肌 (Flexor pollicis brevis muscle)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/musculus-opponens-pollicis/wVWAeWwLsDDbl32Lp0RsQ_B83FtfLrej_Musculus_opponens_pollicis_1.png "拇对掌肌 (Opponens pollicis muscle)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/dorsal-interossei-muscles-of-hand/icEPYeUQk56jsZTmQhtg_dorsal_interosseous_muscle.png "手骨间背侧肌 (Dorsal interossei muscles of hand)；图像：Paul Kim"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/extensor-expansion-of-hand-1/1c1TKVDxXgfND8ejHi0Rrg_extensor_expansion.png "伸肌腱装置 (Extensor expansion of hand)；图像：Paul Kim"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/central-band-of-extensor-expansion-of-hand/hAySJvzvYAm6M39XvTtA_insertion_of_central_band_of_extensor_tendon_to_base_of_middle_phalanx.png "伸肌腱中央束 (Central extensor band)；图像：Paul Kim"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/collateral-bands-of-extensor-expansion-of-hand/rjzDnyifTjIrwbXs4kptSA_Lateral_band_of_extensor_expansions.png "伸肌腱侧束 (Collateral bands of extensor expansion of hand)；图像：Paul Kim"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/musculi-interossei-palmares/Uuy2VwUlwmJX9vZqTpmBw_RqsHVtrBxr_Musculi_interossei_palmares_1.png "骨间掌侧肌 (Palmar interossei muscles)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/musculi-lumbricales-hand/9koMoBAL0lzCigRLbEbU3w_Lumricales.png "手蚓状肌 (Lumbrical muscles of hand)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/hypothenar-eminence-2/vuWFnRUUrL2hRYBQ4oKcQ_hypothenar-eminence-2.jpeg "小鱼际肌 (Hypothenar muscles)；图像：Yousun Koh"){kind=logo}
:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/abductor-digiti-minimi-muscle-of-hand-1/2HrQ0bsSbFYKxxbfgOj3g_abductor_digiti_minimi_muscle.png "小指展肌 (Abductor digiti minimi muscle of hand)；图像：Paul Kim"){kind=logo}
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:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/tendon-of-extensor-digitorum-muscle/BU4HH35lyUIrCoVnkTeiZw_long_extensor_tendon.png "指伸肌腱 (Tendons of extensor digitorum muscle)；图像：Paul Kim"){kind=logo}
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:watermark(/images/watermark_only.png,0,0,0):watermark(/images/logo_url.png,-10,-10,0):format(jpeg)/images/learnable/tendon-of-flexor-digitorum-superficialis-muscle/6JG44LxiWv6L8nt7TaecFw_flexor_digitorum_superficialis_tendon.png "指浅屈肌腱 (Tendons of flexor digitorum superficialis muscle)；图像：Paul Kim"){kind=logo}
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大鱼际肌
Thenar muscles
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同义词：
无
进行测验
现在你已经看完图谱，来进行测验以巩固你对手肌的理解。
小结
| 中间群 |
骨间背侧肌：第2~4指的屈曲、外展和伸展 骨间掌侧肌：第2、4、5指的屈曲、内收和伸展 蚓状肌：第2~5指的屈伸 |
| 鱼际肌群 |
拇短展肌：拇指的外展 拇短屈肌：拇指的屈曲 拇对掌肌：拇指对指 拇收肌：拇指的内收 |
| 小鱼际肌群 |
小指展肌：小指的外展、屈曲和伸展 小指短屈肌：小指的屈曲、外旋和对指 小指对掌肌：小指的屈曲、外旋和对指 |
| 其他 | 掌短肌：绷紧掌腱膜，以增强抓握力 |
继续学习
相关教材
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