30 Questions
Which muscle originates from the medial border of the coronoid process of the ulna?
Pronator teres
Which of the following muscles is part of the deep compartment of the anterior forearm?
Flexor digitorum profundus
Which of the following is a superficial vein of the forearm?
Cephalic vein
Which of the following muscles is responsible for pronation of the forearm?
Pronator quadratus
Which of the following is a muscle in the middle compartment of the anterior forearm?
Flexor digitorum superficialis
Which of the following muscles is responsible for flexion of the wrist?
Flexor carpi radialis
Which of the following is a superficial vein that connects the cephalic and basilic veins in the cubital fossa?
Median cubital vein
What is the primary function of the Flexor carpi radialis muscle?
Flexion and abduction of the wrist
Which nerve innervates the Palmaris longus muscle?
Median nerve
What is the origin of the Flexor digitorum superficialis muscle?
Humeroulnar head → medial epicondyle, CFT, anterior surface of ulnar collateral ligament, Radial head → anterior surface of radius
Which nerve innervates the Flexor digitorum profundus muscle?
Lateral part innervated by Median nerve, medial part innervated by Ulnar nerve
What is the primary function of the Pronator quadratus muscle?
Pronation of the forearm
Which structure forms the base of the cubital fossa?
Line passing through the epicondyles
What is the content of the cubital fossa?
No specific content is mentioned in the text
What is the insertion of the Flexor carpi ulnaris muscle?
Pisiform and 5th metacarpal bone
Which of the following muscles originates from the medial border of the coronoid process of the ulna?
Pronator teres
Which of the following muscles is responsible for pronation of the forearm?
Pronator quadratus
Which of the following is a superficial vein that connects the cephalic and basilic veins in the cubital fossa?
Median cubital vein
Which of the following muscles is part of the deep compartment of the anterior forearm?
Flexor digitorum profundus
Which of the following muscles is responsible for flexion of the wrist?
Flexor carpi radialis
Which of the following is a superficial vein of the forearm?
All of the above
Which muscle is part of the middle compartment of the anterior forearm?
Flexor digitorum superficialis
Which muscle inserts at the base of the 1st and 2nd metacarpal bones?
Palmaris longus
Which muscle is responsible for flexion and abduction of the wrist?
Flexor carpi radialis
Which structure demarcates the base of the cubital fossa?
Line through the epicondyle
What is the function of the Flexor digitorum profundus muscle?
Flexion of the distal phalanx
Which muscle originates from the interosseous membrane and the anterior surface of the radius?
Flexor pollicis longus
What nerve innervates the Flexor carpi ulnaris muscle?
Ulnar nerve
Which muscle is involved in flexion of the distal phalanx of the thumb?
Flexor digitorum profundus
Which muscle primarily performs flexion and adduction of the wrist?
Flexor carpi radialis
Study Notes
Muscles of the Anterior Forearm
- Pronator teres muscle:
- Origin: Ulnar head → medial border of coronoid process, Humeral head → upper part of medial epicondyle, CFT, antebrachial fascia
- Insertion: Anterior surface of radius
- Function: Pronation, weak flexion of forearm
- Nerve supply: Median nerve
- Flexor carpi radialis muscle:
- Origin: Medial epicondyle, CFT, antebrachial fascia
- Insertion: Base of 1st and 2nd metacarpal
- Function: Flexion and abduction of the wrist
- Nerve supply: Median nerve
- Palmaris longus muscle:
- Origin: Medial epicondyle, antebrachial fascia
- Insertion: Flexor retinaculum, palmar aponeurosis
- Function: Flexion of the wrist and stretches the palmar aponeurosis
- Nerve supply: Median nerve
- Flexor carpi ulnaris muscle:
- Origin: Humeral head → medial epicondyle, Ulnar head → medial border of ulna, olecranon
- Insertion: Pisiform, 5th metacarpal bone
- Function: Flexion and adduction of the wrist
- Nerve supply: Ulnar nerve
Middle Compartment
- Flexor digitorum superficialis muscle:
- Origin: Humeroulnar head → medial epicondyle, CFT, anterior surface of ulnar collateral ligament, Radial head → anterior surface of radius
- Insertion: Sides of the medial 4 middle phalanx
- Function: Flexion of the proximal phalanx
- Nerve supply: Median nerve
- Flexor digitorum profundus muscle:
- Origin: Anterior and medial surface of ulna, interosseus membrane
- Insertion: Base of the medial 4 distal phalanx
- Function: Flexion of the distal phalanx
- Nerve supply: Lateral → Median nerve, Medial → Ulnar nerve
Deep Compartment
- Flexor policis longus muscle:
- Origin: Interosseus membrane, anterior surface of radius
- Insertion: Base of the distal phalanx of thumb
- Function: Flexion of the distal phalanx of the thumb
- Nerve supply: Median nerve
- Pronator quadratus muscle:
- Origin: Lower part of ulna
- Insertion: Lower part of ulna
- Function: Pronates the forearm
- Nerve supply: Median nerve
Cubital Fossa
- Triangular fossa in front of the elbow joint
- Medial border: Pronator teres muscle
- Lateral border: Brachioradialis muscle
- Base: Line passing through the epicondyle
- Apex: Where the lateral and medial borders meet
- Floor: Supinator and brachialis muscle
- Content of the cubital fossa: Not specified
Test your knowledge on the anterior aspect of the forearm and cubital fossa, including muscles, veins, and anatomical structures. Topics covered include superficial veins, flexor and extensor retinaculum, and muscles of the anterior forearm.
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