Anatomy & Physiology Fundamentals Flashcards
7 cards from real CPT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Anatomy & Physiology Fundamentals flashcards as text
Which type of joint allows the greatest range of motion and is most commonly affected by conditions requiring lower-limb prosthetics?
Answer: Synovial joint
Synovial joints provide the greatest range of motion and include joints like the hip and knee that are central to prosthetic gait.
The ischial tuberosity is a critical loading point in ischial containment sockets. To which bone does this structure belong?
Answer: Ischium
The ischial tuberosity is the roughened inferior projection of the ischium and bears body weight during sitting.
Which physiological process causes post-amputation edema in the residual limb, and understanding it helps technicians recommend appropriate sock ply management?
Answer: Disrupted lymphatic drainage
Amputation disrupts lymphatic vessels, impairing fluid drainage and causing edema that the prosthetic socket must accommodate.
A residual limb shows a scar over a bony prominence. Which anatomical principle explains why this area is at highest risk for skin breakdown?
Answer: Reduced tissue compressibility over bony prominences
Tissue over bony prominences has less compressibility, concentrating interface pressure and increasing skin breakdown risk.
Which of the following muscles, when spastic or contracted in a transtibial amputee, most commonly causes a knee flexion contracture?
Answer: Hamstrings
Hamstring spasticity or contracture causes persistent knee flexion, complicating transtibial prosthetic alignment.
Periosteum covers the external surface of bone. Which cell layer within the periosteum is directly responsible for bone repair after fracture?
Answer: Inner cambium (osteogenic) layer
The inner cambium (osteogenic) layer of the periosteum contains osteoprogenitor cells that proliferate during bone healing.
Which nerve is responsible for sensation over the dorsum of the foot and is commonly assessed in dysvascular lower-limb amputees?
Answer: Deep peroneal nerve
The deep peroneal nerve innervates the first web space and dorsal foot, and its assessment helps evaluate residual limb neurological status.