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pISSN 2093-3665 eISSN 2093-3673
Table. 4.

Incidence and morphometric measurements of the muscular branches supplying coracobrachialis muscle originating from musculocutaneous nerve

Right (n=50) Left (n=50) Male (n=60) Female (n=40) All (n=100)
CB1 (%) 95.0 85.0 95.0 85.0 90.0
CB2 (%) 40.0 50.0 50.0 40.0 45.0
C-EP (mm) 290.7±19.1 288.1±16.4 302.1±12.02* 275.5±11.1 289.4±17.6
C-CB1 (mm) 43.9±9.7 42.5±6.9 44.2±8.8 42.1±7.9 43.3±8.4
C-CB2 (mm) 46.0±6.8 42.0±7.6 43.8±6.6 43.7±8.9 43.8±7.3
CB1-L (mm) 35.0±11.6 34.3±11.3 36.1±13.3 32.9±8.7 34.6±11.3
CB2-L (mm) 28.1±10.3 30.6±12.1 31.5±10.8 27.5±11.0 29.7±10.8

Data are expressed as mean±SD. CB1, first muscular branch of coracobrachialis muscle (CBM) originating from the musculocutaneous nerve (MCN); CB2, second muscular branch of CBM originating from MCN; C-EP, distance between coracoid process (C) and medial humeral epicondyle (EP); C-CB1, the vertical original distance between the coracoid process of scapula and the origin of the first muscular branch of CBM from MCN; C-CB2, the vertical original distance between the coracoid process of scapula and the origin of the second muscular branch of CBM from MCN; CB1-L, the length of the first muscular branch of CBM; CB2-L, the length of the second muscular branch of CBM originating from MCN. *Significant difference between male and female limbs.

Anat Cell Biol 2024;57:194~203 https://doi.org/10.5115/acb.24.032
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