Nerve Pathways
Axillary Nerve
- arising from the posterior cord
- passing between the _________________ and ________________ close to surgical neck of the humerus
- passes out of the quadrangular space
- innervates the deep surface of ________________ and ____________________.
Ulnar Nerve
- arising from the median nerve
- passes through the arm innervating nothing passing between medial epicondyle and olecranon
- passes between 2 heads and innervates ________________________________
- passes deep to ___________________________________
- sends branch to innervate ulnar ½ of __________________________________________
- proximal to wrist sends _____________________ branch to ulnar side of dorsum of hand
- proximal to wrist sends_______________________ branch to ulnar side of palm of hand
- crosses wrist and passes through ___________________________ between pisiform and hook of hamate
- ends by dividing into _____________________________ and _____________________
- superficial remains superficial and innervates entire ______ finger and entire ulnar side of _____ finger
- deep ulnar nerve passes b/w _____________________ and __________________________; through opponens digiti minimi and follows deep arch on surface interossei muscles
- deep ulnar nerve innervates 14 ½ muscles
Radial Nerve
- arising from the posterior cord
- passes to radial groove of humerus at proximal aspects of radial groove and innervates
- _____________________
- _____________________
- _____________________
- _____________________
- passes out of radial groove between _______________________ and ________________ at which point it innervates
- __________________
- __________________
- passes into cubital fossa and ends by dividing into __________________ and ________________
- superficial radial nerve: passes distal between _________________ and ______________ and passes under __________________________ to become cutaneous to dorsum of first web space including dorsum of thumb
- deep radial nerve:
- passes into and innervates ________________________
- emerges out of __________________ into posterior compartment of forearm
- travels distally between superficial and deep layers of post. Compartment
- innervates:
1. _________________________
2. _________________________
3. _________________________
4. _________________________
5. _________________________
6. _________________________
7. _________________________
8. _________________________
Median Nerve
- arises from the joining of lateral and medial roots of the median nerve
- passes through the median of anterior compartment of the arm innervating nothing
- passes into the middle of the cubital fossa
- passes under the _____________________________
- passes between the 2 heads and innervates ______________________________
- passes between the 2nd and 3rd layers of muscles of the forearm (______________________and _____________________________)
- innervates
- ______________________________
- ______________________________
- ______________________________
- sends off one branch _________________________________________ which travels on the anterior surface of the interosseus membrane and innervates
- ______________________________
- ______________________________
- ______________________________
- median nerve continues to cross wrist under the tendon of the ______________________
- enters into the most superficial part of carpal tunnel
- passes into central compartment of hand to innervate
- ______________________________
- ______________________________
- ______________________________
- ______________________________
- ______________________________