Podcast
Questions and Answers
Which muscle is primarily responsible for the supination of the forearm and hand?
Which muscle is primarily responsible for the supination of the forearm and hand?
- Anconeus
- Extensor digitorum
- Supinator (correct)
- Extensor carpi radialis longus
What is the insertion point of the Extensor carpi ulnaris?
What is the insertion point of the Extensor carpi ulnaris?
- Base of fifth metacarpal bone (correct)
- Base of third metacarpal bone
- Base of first metacarpal bone
- Base of second metacarpal bone
Which structure covers the dorsum of the phalanges, excluding the thumb, and is also known as the extensor expansion?
Which structure covers the dorsum of the phalanges, excluding the thumb, and is also known as the extensor expansion?
- Dorsal digital expansion (correct)
- Anatomical snuff box
- Radial fossa
- Common extensor tendon
Which muscle inserts into the dorsal digital expansion?
Which muscle inserts into the dorsal digital expansion?
What is the main artery supplying blood to the extensor aspect of the forearm?
What is the main artery supplying blood to the extensor aspect of the forearm?
Which of the following muscles is innervated by the deep branch of the radial nerve?
Which of the following muscles is innervated by the deep branch of the radial nerve?
What is the innervation of the Supinator muscle?
What is the innervation of the Supinator muscle?
Which muscle originates from the common extensor tendon and inserts into the dorsal digital expansion?
Which muscle originates from the common extensor tendon and inserts into the dorsal digital expansion?
Which muscle is primarily responsible for flexing the forearm when it is pronated?
Which muscle is primarily responsible for flexing the forearm when it is pronated?
What structure serves as the common origin for many of the extensor muscles of the posterior forearm?
What structure serves as the common origin for many of the extensor muscles of the posterior forearm?
Which nerve innervates the majority of the extensor muscles in the posterior forearm?
Which nerve innervates the majority of the extensor muscles in the posterior forearm?
Which of the following is a deep muscle group in the posterior forearm?
Which of the following is a deep muscle group in the posterior forearm?
What is the primary action of the extensor carpi radialis longus muscle?
What is the primary action of the extensor carpi radialis longus muscle?
Which superficial muscle forms the lateral border of the cubital fossa?
Which superficial muscle forms the lateral border of the cubital fossa?
What is the insertion point for the extensor carpi radialis longus?
What is the insertion point for the extensor carpi radialis longus?
Which of the following muscles is NOT considered part of the superficial group in the posterior forearm?
Which of the following muscles is NOT considered part of the superficial group in the posterior forearm?
Which muscle is responsible for the extension of the forearm at the elbow joint?
Which muscle is responsible for the extension of the forearm at the elbow joint?
What is the primary function of the dorsal digital expansion?
What is the primary function of the dorsal digital expansion?
Which muscle originates from the lateral epicondyle and contributes to supination?
Which muscle originates from the lateral epicondyle and contributes to supination?
Which insertion corresponds with the extensor pollicis brevis?
Which insertion corresponds with the extensor pollicis brevis?
Which of the following groups forms the deep layer of extensor muscles?
Which of the following groups forms the deep layer of extensor muscles?
Which muscle attaches to the base of the fifth metacarpal bone?
Which muscle attaches to the base of the fifth metacarpal bone?
What is the primary blood supply to the extensor aspect of the forearm?
What is the primary blood supply to the extensor aspect of the forearm?
Which muscle associated with the common extensor tendon is responsible for extending the little finger?
Which muscle associated with the common extensor tendon is responsible for extending the little finger?
What is the primary function of the brachioradialis muscle?
What is the primary function of the brachioradialis muscle?
Which muscle is responsible for the extension of the forearm and hand?
Which muscle is responsible for the extension of the forearm and hand?
From which structure do the extensor muscles primarily originate?
From which structure do the extensor muscles primarily originate?
Which structure is NOT part of the deep group of muscles on the posterior aspect of the forearm?
Which structure is NOT part of the deep group of muscles on the posterior aspect of the forearm?
What is the insertion point of the extensor carpi radialis longus muscle?
What is the insertion point of the extensor carpi radialis longus muscle?
Which muscle is innervated by the radial nerve?
Which muscle is innervated by the radial nerve?
Where is the common extensor tendon located?
Where is the common extensor tendon located?
Which group of muscles is located more superficially in the posterior aspect of the forearm?
Which group of muscles is located more superficially in the posterior aspect of the forearm?
