Thenar Muscles Flashcards by Liz Fougere | Brainscape

Q

What is the Location of Flexor Pollicis Brevis

A

Most Medial of the Thenar Muscles

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Q

What are the Origins of Flexor Pollicis Brevis

A

Flexor Retinaculum, Scaphoid and Trapezium

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Q

What is the Insertion of Flexor Pollicis Brevis

A

Proximal Phalanx of Thumb (lateral aspect)

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Q

What are the Actions of Flexor Pollicis Brevis

A

Flexion at the CMC and MCP Joints of the Thumb

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Q

What is the Innervation of Flexor Pollicis Brevis

A

Median Nerve

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Q

What is the Location of Opponens Pollicis

A

Deepest of the Thenar Muscles

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Q

What are the Origins of Opponens Pollicis

A

Flexor Retinaculum, Scaphoid and Trapezium

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Q

What is the Insertion of Opponens Pollicis

A

Lateral aspect of the 1st Metacarpal

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Q

What are the Actions of Opponens Pollicis

A

Opposition of the Thumb, Extension, Abduction, Flexion,Medial Rotation and Adduction

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Q

What is the Innervation of Opponens Pollicis

A

Median Nerve

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Q

What is the Location of Abductor Pollicis Brevis

A

Superficial; Most Lateral of the Thenar Muscles

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Q

What are the Origins of Abductor Pollicis Brevis

A

Flexor Retinaculum, Scaphoid and Trapezium

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Q

What is the Insertion of Abductor Pollicis Brevis

A

Proximal Phalanx of Thumb (lateral aspect)

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Q

What are the Actions of Abductor Pollicis Brevis

A

Abduction at the CMC and MCP Joints of the Thumb

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Q

What is the Innervation of Abductor Pollicis Brevis

A

Median Nerve

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