ant forearm muscles

Question 1

Pronator Teres- O (hum + ulnar), I, IN, A

Answer 1

O-
hum-common flexor ten
Ulnar- Coronoid process

I- Lat boder of radius (mid)

IN- median (c6,7)

A- pronates/flexes forarm

Question 2

FCR- O, I, IN, A

Answer 2

O- common flexor ten

I- bases of 2nd and 3rd metacarpals

IN- median (c6,7)

A- flexes and abducts hand at wrist

Question 3

Palmaris longus- O, I, IN, A

Answer 3

O- Common flexor ten

I- Palmar apponeurosis

In- median n (c7,8)

A- tightens apponeurosis/ weak flexor

Question 4

Flexor carpi Ulnaris- O (hum+ulnar), I, In, A

Answer 4

O-
hum- common flexor ten
Ulnar- prox 2/3 of post border of ulna, olecranon

I- pisohamate lig, pisocarpal lig

IN- Ulnar n c7,8

A- flex and adduct hand, ass in flex

Question 5

FDsuperficialis- O (hum/ulnar + rad), I, IN, A

Answer 5

O-
hum- common flexor, ulnar coll, coranoid
rad- oblique line of rad

I- middle phalanges of med 4 fingers (both sides)

In- Median c7,8

A- flex prox interpharangeal, carpometacarpal and wrsit j, asss in flex of forarm

Question 6

Flexor Digitorum profundus- O, I(med+lat), In (med and lat), A

Answer 6

O- prox 3/4 of ant/med surface of ulna, middle 1/2 of interosseus

I med- base of distal phalanges 4+5
lat- bases of distal phalanges 2+3

IN- med- ulnar (c8,t1)
lat- ant interossues (c8,t1)

A- flex at distal interpharangeal j, and other intervening j

Question 7

Flexor pollicis longus- O, I, In, A

Answer 7

O- ant surface of rad, lat 1/2 interosseus

I- base of distal phalanx (thumb)

In- Anr interosseus C8,T1

A- flexes wrist and all phalanges of thumb

Question 8

Pronator quadratus- O, I, IN, a

Answer 8

O- lower 1/4 ant surface of rad

I- oblique ridge on lower ant surface of ulna

IN- ant interosseus C8,T1

A- pronator of forearm, bind rad and ulna together