Research Article

Relationships among Coracobrachialis, Biceps Brachii, and Pectoralis Minor Muscles and Their Correlation with Bifurcated Coracoid Process

Table 1

Morphometric parameters according to sex and body side. All data are presented in millimeters.

ParameterSex valueBody side value
FemalesMalesRightLeft

Pectoralis muscleWidth11.63 (3.30)13.84 (3.83)0.001512.63 (3.64)12.00 (3.58)0.3929
Thickness2.78 (1.02)2.92 (1.08)0.54192.91 (1.08)2.74 (0.99)0.2946

Coracoid—short headWidth11.91 (3.71)13.04 (3.91)0.279312.39 (3.65)12.02 (3.93)0.7874
Thickness3.25 (1.24)3.73 (1.02)0.05633.43 (1.19)3.33 (1.22)0.7649

Coracobrachialis 1/medialWidth7.87 (2.14)8.77 (2.63)0.13568.28 (2.19)8.14 (2.55)0.7825
Thickness2.50 (0.79)2.99 (1.02)0.14682.63 (0.92)2.74 (0.90)0.5498

Coracobrachialis 2/lateralWidth9.82 (3.87)7.63 (4.10)0.13888.71 (4.14)9.08 (4.09)0.8738
Thickness3.14 (1.71)2.24 (0.71)0.00622.83 (1.77)2.67 (0.98)0.8567

Short head of biceps brachiiWidth6.76 (2.16)6.77 (1.64)0.80416.64 (1.97)6.89 (2.00)0.6498
Thickness2.06 (0.63)2.38 (0.85)0.04512.17 (0.70)2.19 (0.77)1.0000
Tendon length75.83 (19.66)78.98 (20.77)0.266578.65 (18.68)74.90 (21.23)0.3356
Belly length159.34 (18.65)166.35 (21.82)0.0009158.81 (20.61)164.30 (18.91)0.1469

Myotendinous junctionWidth8.48 (2.86)9.01 (2.47)0.15358.32 (2.64)9.00 (2.83)0.1455
Thickness3.18 (1.21)3.79 (1.83)0.01183.27 (1.01)3.48 (1.81)0.9621

Coracobrachialis 1/medial length117.90 (20.57)126.41 (21.32)0.0376121.80 (18.25)119.35 (23.80)0.7145
Coracobrachialis 2/lateral length102.70 (25.86)111.89 (32.82)0.0235104.62 (30.26)108.35 (27.71)0.6266
Coracobrachialis 3 length49.14 (16.30)65.21 (33.97)0.530956.57 (27.35)57.78 (28.85)1.0000

Level of significance level according to the Bonferroni correction was 0.003 and marked with .