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Palm of Hand
Medical School Gross Anatomy
21
Anatomy
Graduate
09/04/2011

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Cards

Term
[image]
Identify the carpal bones
Definition
1. Scaphoid
2. Lunate
3. Triquetrum
4. Pisiform
5. Trapezium
6. Trapezoid
7. Capitate
8. Hamate
Term
What carpal bone is most likely to fracture?
Definition
Scaphoid
Term
What carpal bone is most likely to dislocate?
Definition
Lunate
Term
What are the muscles of the Thenar Eminence?
Definition
Abductor Pollicis Brevis
Flexor Pollicis Brevis
Opponens Pollicis
Term
What enervates the muscles of the Thenar Eminence?
Definition
Recurrent (motor) branch of the median nerve
Term
What is the function of the abductor pollicis brevis?
Definition
Abduction of the thumb
Term
What is the function of the Flexor Pollicis Brevis?
Definition
Flexion of the thumb
Term
What is the function of Opponens Pollicis?
Definition
Opposition of the thumb (touching your fingers with your thumb)
Term
What are the muscles of the Hypothenar Eminence?
Definition
Flexor Digiti Minimi Brevis
Abductor Digiti Minimi
Opponens Digiti Minimi
Term
What enervates the Hypothenar eminence muscles?
Definition
The Deep Ulnar Nerve
Term
[image]
Identify the muscles
Definition
1-4: Lumbricals
Blue Star: Adductor Pollicis
Term
Enervation and function of the lumbricals?
Definition
Function: Flexion at MP join, extension at IP joint

enervatoin: 1st and 2nd Lumbricals are enervated by the median nerve. 3rd and 4th lumbircals are enervated by the deep ulnar nerve
Term
Enervation and Function of the Adductor Pollicis?
Definition
Function: Adduction of the thumb

Enervation: Deep ulnar nerve
Term
Function and Enervation of the Palmar interossei?
Definition
Function: Adduction of the digits

Enervation: Deep Ulnar Nerve
Term
Function and Enervation of the Dorsal Interossei?
Definition
Function: Abduction of the hand

Enervation: Deep Ulnar Nerve
Term
What are the contents of the carpal tunnel?
Definition
4 flexor digitorum superficialis tendons
4 flexor digitorum profundus tendons
1 flexor pollicus longus tendon
Median nerve
Term
What is the roof of the carpal tunnel?
Definition
Flexor Retinaculum
Term
What branch of the median nerve does NOT go through the carpal tunnel?
Definition
Palmar Cutaneous Branch
Term
How do the nerves in the hand branch?
Definition
The median and ulnar nerve each branch into Common Palmar digital branches in the metacarpals and then branch again into Proper Palmar Digital branches in the digits
Term
What are the contents of the Canal of Guyon?
Definition
The ulnar nerve and artery
Term
What branches of the ulnar nerve do go through the canal of Guyon?
Definition
Palmar Cutaneous Branch and Dorsal Cutaneous Branch
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