When thinking about the upper arm, the biceps and triceps are the first muscles that come to mind. It is equally important to remember the brachialis muscle, which is located right underneath

Muscle Attachments and Actions

The 12 Best Biceps Exercises for Muscle & Strength – StrengthLog

The Ultimate Muscle Groups Guide & How To Best Train Them - Levels

[Self] Supination, semipronation, and forced pronation of the arm

Two rounded muscles compose the form of the buttocks: the gluteus

11.6 Muscles of the Pectoral Girdle and Upper Limbs – Anatomy & Physiology

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Muscles of the Upper Arm - Biceps - Triceps - TeachMeAnatomy

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The Ultimate Arms Workout (Beginner Guide)