A Proposal for a New Classification of the Supernumerary Heads of the Biceps Brachii Muscle

Figure 3

Type III of the biceps brachii. (a) Type IIIa of biceps brachii. Left arm: CBM coracobrachialis muscle; shBB short head of the biceps brachii; lhBB long head of the biceps brachii; thBB third head of the biceps brachii; fhBB fourth head of the biceps brachii. (b) Type IIIb of the biceps brachii. Left arm: CBM coracobrachialis muscle; shBB short head of the biceps brachii; lhBB long head of the biceps brachii; thBB third head of the biceps brachii; fhBB fourth head of the biceps brachii; tBB tendon of the biceps brachii; LF lacertus fibrosus.

(a)

(b)