Wrist and Forearm Quiz

Which muscle group is primarily responsible for bending (flexing) the wrist and fingers?

• Extensors

• Flexors

• Pronators

• Supinators

A jammed finger typically involves an injury to the:

(a)  

When making a tight fist, which muscle group is most active?

• Flexors

• Extensors

• Supinators

• Pronators

Differentiate between a sprain and a fracture in the wrist. What structure is injured in each?

Answer explanation

Sprain-Ligament

Fracture- Bone

Jersey Finger typically involves a flexor tendon tear, preventing the individual from fully flexing the fingertip.

• True

• False

An athlete jams their finger while catching a ball. Name one common sign that might indicate a jammed finger versus a fracture.

Which muscle rotates the forearm from palm-down to palm-up?

• Pronator Teres

• Supinator

• Flexor Digitorum Profundus

• Extensor Carpi Ulnaris

Why might the thumb require different treatment than the other fingers in cases of sprains or fractures?

Which of the following injuries is most commonly associated with punching or striking an object incorrectly?

• Mallet Finger

• Boxer’s Fracture

• Jersey Finger

• Distal Radius Fracture

A student falls on an outstretched hand and complains of severe wrist pain: Suggest one special test to help determine if there is a ligament sprain vs. a bone fracture.