Muscles of posterior compartment of forearm (1).pptx

Muscular system

1. Muscles o f C h e s t Muscles o f posterior compartment o f forearm ( S )

2. Brachio r a d i a l i s S u p r a c h o n d y l a r r i d g e o f h u m e r u s R a d i u s a t s t y l o o d p r o c e s s F l e x a t e lbow R a dial n e rve

3. E x t e n s o r c a r p i r a d i a l i s l o n g u s a n d b r e v e s E C R L f r o m s u p r a c h o n d y l a r r i d g e a n d E C R B f r o m l e t r a l e p i c h o n d y l e M e t a c a r p a l 2nd a n d 3rd Extend and a b d u c t t h e w r i s t R a d i al n e r v e

4. E x t e n s or d i g i t o r u m L e t r a l e p ichondyle S p l i t s i n t o f o u r tendons f o r e x t e n s o r h o o d o f e a c h f i n g e r E x t e n d t h e f i n g e r s a t M C P a n d I P j o i n t R a d i a l n e r v e

5. Extensor d i g i t i m i n i m i L e t r a l e pichondyle E x t e n s o r h o o d o f l i t tle f i nger E x tend t h e little finger at M CP and IP j o i nt R a d i al nerve

6. E x t e nsor c a rpi u lnaris L e t ral e pichondyle B a s e o f m etacarpal 5 th E x t e n d a n d a d d u c t ion t h e w r i s t R a dial n e r ve

7. Anc o n e u s L e t ral epichondyle L e t ral a n d p osterior s u r f a c e o f o l e cranon process E x tend a n d stabilise t h e e l b o w a n d abduct t h e ulna d u r ing Pronation R a d i al nerve