Flashcards in Movements and Muscles of the Hand Deck (18):
From lateral to medial, state the names of the 8 bones in the wrist
Trapezium - Trapezoid - Capitate - Hamate
Bottom row: Scaphoid - Lunate - Triquetral - Pisiform
Where do the Lumbrical muscles originate from and where do they insert?
From the radial side of the profundus tendon, inserting onto the extensor apparatus
What is the innervation of the Lumbrical muscles?
Lateral two lumbricals (index and middle finger) = Median nerve
Medial two lumbricals (ring and pink) = Ulnar nerve
What is the function of the Lumbrical muscles?
Flexion of the MCP joints whilst keeping IP joints extended
What are the three muscles of the Thenar eminence?
Abductor Pollicis Brevis
Flexor Pollicis Brevis
What are the Thenar eminence muscles nerve supply?
What are the three muscles of the Hypothenar eminence?
Opponens Digiti Minimi
Abductor Digiti Minimi
Flexor Digiti Minimi Brevis
What are Hypothenar Eminence nerve supply?
What are the roles of the Palmar and Dorsal Interossei muscles?
Dorsal Interossei - Abduction of the fingers at the MCP
Palmar Interossei - Adduction of the fingers at the MCP
What is the nerve supply for the Interossei muscles?
What is the nerve supply for the Adductor Pollicies?
What is the nerve supply for Palmaris Brevis?
Abduction of the thumb tests what nerve purely?
Adduction of the thumb tests what nerve purely?
Which of the Lumbricals are unipennate and bipennate?
Lateral two lumbricals: Unipennate
Medial two lumbricals: Bipennate
What artery is the root for the Superficial palmar branch of the hand and supplies blood for the four fingers (ulnar side of index)?
What artery is the root for the Deep palmar branch of the hand and supplies blood for the radial side of the index and the thumb?