Final answer:
The most susceptible area of the body for the formation of decubitus ulcers is the sacrum, followed by the heels and elbows. Relieving pressure on these areas is crucial to prevent the formation of bedsores.
Step-by-step explanation:
Decubitus ulcers, also known as bedsores, are most susceptible to form on body parts that are bony and experience constant, long-term pressure. The area of the body that is most commonly affected by decubitus ulcers is the sacrum. The sacrum is the triangular bone located at the base of the spine and below the lumbar vertebrae. Other common areas prone to developing bedsores include the heels and elbows. It is important to relieve pressure on these areas by repositioning or turning the patient regularly to reduce the risk of bedsores.