Certified Wound Ostomy Nurse (CWON) Practice Test

What is the anatomical location of the distal interphalangeal (DIP) joints?

1. Between the ankle and foot bones

2. Between the two most distal toe bones

3. At the base of the fingers

4. At the wrist

The correct answer is: Between the two most distal toe bones

The distal interphalangeal (DIP) joints are found between the two most distal bones of the fingers and toes. These joints are specifically located at the ends of the digits, facilitating the bending and straightening of the fingers and toes. In the context of the fingers, the DIP joints connect the distal phalanx (the bone at the tip of the finger) with the middle phalanx (the bone in the middle of the finger), enabling fine motor functions and grip. This anatomical feature plays a significant role in various activities such as gripping objects, typing, and performing delicate tasks. Understanding the specific location of the DIP joints is crucial for assessing injuries or conditions affecting finger or toe function.