, Introduction
• Forearm extends between the elbow and
the wrist joints.
• Radius and ulna form its skeleton.
• These two bones articulate at both their
ends to form superior and inferior
radioulnar joints.
• Hand is the most distal part of the upper
limb, meant for carrying out diverse
activities.
,Components-
The front of the forearm presents the following components
for study.
1. Eight muscles- Five Superficial and Three Deep.
2. Two arteries- Radial and Ulnar.
3. Three nerves- Median, Ulnar and Radial.
, MUSCLES OF FRONT OF FOREARM
Muscle Origin Insertion Nerve Action
supply
Pronator Medial epicondyle of Middle of lateral Median Pronation
teres humerus and medial aspect of shaft of nerve of forearm
margin of coronoid radius
process
Flexor Medial epicondyle of Bases of 2nd and 3rd Median Flexion and
carpi humerus metacarpal bones nerve abduction
radialis at wrist
joint
Palmaris Medial epicondyle of Flexor retinaculum Median Flexion-
longus humerus and palmar nerve wrist joint
aponeurosis
• Forearm extends between the elbow and
the wrist joints.
• Radius and ulna form its skeleton.
• These two bones articulate at both their
ends to form superior and inferior
radioulnar joints.
• Hand is the most distal part of the upper
limb, meant for carrying out diverse
activities.
,Components-
The front of the forearm presents the following components
for study.
1. Eight muscles- Five Superficial and Three Deep.
2. Two arteries- Radial and Ulnar.
3. Three nerves- Median, Ulnar and Radial.
, MUSCLES OF FRONT OF FOREARM
Muscle Origin Insertion Nerve Action
supply
Pronator Medial epicondyle of Middle of lateral Median Pronation
teres humerus and medial aspect of shaft of nerve of forearm
margin of coronoid radius
process
Flexor Medial epicondyle of Bases of 2nd and 3rd Median Flexion and
carpi humerus metacarpal bones nerve abduction
radialis at wrist
joint
Palmaris Medial epicondyle of Flexor retinaculum Median Flexion-
longus humerus and palmar nerve wrist joint
aponeurosis
