Thenar Eminence

Muscle	Innervation	Action
Abductor Pollicis Brevis	Median Nerve C8/T1	Abduction & Opposition
Flexor Pollicis Brevis	Median C8/T1 & deep Ulnar Nerve	Flexion at MCPJ
Opponens Pollicis	Median Nerve	Opposition of thumb

Diagram illustrating the Thenar Eminence