forearm Flashcards
What are the two main bones of the forearm?
The radius and the ulna.
True or False: The radius is located on the medial side of the forearm.
False.
Fill in the blank: The forearm is divided into the anterior (flexor) compartment and the __________ (extensor) compartment.
posterior
What is the primary function of the flexor muscles in the forearm?
To flex the wrist and fingers.
Which muscle is the main pronator of the forearm?
Pronator teres.
What is the role of the supinator muscle?
To supinate the forearm.
True or False: The ulna is thicker at the wrist than the radius.
False.
Multiple Choice: Which of the following muscles is NOT a part of the forearm flexor group? A) Flexor carpi radialis B) Flexor digitorum profundus C) Extensor carpi ulnaris
C) Extensor carpi ulnaris
What structure connects the radius and ulna along their length?
Interosseous membrane.
Which artery supplies blood to the forearm?
Radial and ulnar arteries.
Fill in the blank: The __________ nerve innervates most of the forearm flexors.
Median
True or False: The ulnar nerve is responsible for the sensation in the little finger.
True.
What is the main action of the extensor muscles in the forearm?
To extend the wrist and fingers.
Multiple Choice: Which of the following is a deep muscle of the forearm? A) Brachioradialis B) Flexor pollicis longus C) Palmaris longus
B) Flexor pollicis longus
What is the anatomical term for the elbow joint?
Cubital joint.
True or False: The radius can rotate around the ulna.
True.
Which muscle is responsible for wrist flexion and is located on the anterior side?
Flexor carpi radialis.
Fill in the blank: The __________ is a prominent landmark on the ulnar side of the wrist.
Ulnar styloid process
What is the primary function of the brachioradialis muscle?
To assist in flexing the elbow.
Multiple Choice: Which of the following nerves is primarily responsible for wrist extension? A) Median nerve B) Radial nerve C) Ulnar nerve
B) Radial nerve
True or False: The forearm muscles are divided into two compartments based on their function.
True.
What is the significance of the anatomical snuffbox?
It is a depression in the wrist that contains the radial artery and is an important landmark for wrist injuries.
Fill in the blank: The __________ is the primary muscle for wrist extension.
Extensor carpi radialis longus
What is the role of the anconeus muscle?
To assist in elbow extension.
True or False: The forearm has more muscles on the posterior side than the anterior side.
False.
Multiple Choice: Which muscle is NOT involved in forearm rotation? A) Supinator B) Pronator quadratus C) Flexor carpi ulnaris
C) Flexor carpi ulnaris
