Brachial Plexus Formation QuizOnline version Test your knowledge of the brachial plexus formation. by Walaa 1 What is the correct sequence of brachial plexus formation? a Roots → Trunks → Divisions → Cords → Branches b Divisions → Roots → Trunks → Cords → Branches c Roots → Divisions → Trunks → Cords → Branches d Trunks → Roots → Divisions → Cords → Branches 2 The brachial plexus is formed by ventral rami of which spinal nerves? a C5–T1 b C3–C5 c T2–T6 d C1–C4 3 The upper trunk of the brachial plexus is formed by the union of which roots? a C7 + C8 b C5 + C6 c C6 + C7 d C8 + T1 4 Each trunk of the brachial plexus divides into how many divisions? a Superior and inferior branches only b Anterior and posterior divisions c 2 anterior and 1 posterior divisions d 1 anterior and 2 posterior divisions 5 The lateral cord of the brachial plexus is formed from which divisions? a Anterior division of the lower trunk only b Posterior division of the middle trunk only c Posterior divisions of all trunks d Anterior divisions of the upper and middle trunks 6 The medial cord of the brachial plexus is formed by which division? a Anterior division of the lower trunk b Posterior divisions of upper and middle trunks c Posterior division of lower trunk d Anterior divisions of upper and lower trunks 7 The middle trunk is formed by which root? a C8 b C5 c C7 d C6 8 Which divisions form the posterior cord? a Anterior divisions of all trunks b Anterior divisions of upper and middle trunks c Posterior divisions of all trunks d Anterior divisions of lower trunk only 9 Which nerve is typically associated with the lateral cord? a Radial nerve b Ulnar nerve c Musculocutaneous nerve d Axillary nerve 10 Which nerve is a branch of the medial cord? a Ulnar nerve b Musculocutaneous nerve c Axillary nerve d Radial nerve
