Musculoskeletal Anatomy Flashcards
7 cards from real ACSM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Musculoskeletal Anatomy flashcards as text
Which muscle is the primary hip flexor and originates from the lumbar vertebrae and iliac fossa?
Answer: Iliopsoas
The iliopsoas, composed of the iliacus and psoas major, is the primary hip flexor originating from the lumbar vertebrae (psoas) and iliac fossa (iliacus).
The rotator cuff is composed of four muscles. Which of the following is NOT part of the rotator cuff?
Answer: Teres major
The rotator cuff consists of the supraspinatus, infraspinatus, teres minor, and subscapularis; teres major is not part of the rotator cuff.
Which joint type allows the greatest range of motion and is classified as a ball-and-socket joint?
Answer: Glenohumeral joint
The glenohumeral (shoulder) joint is a ball-and-socket joint that allows the greatest range of motion of any joint in the body.
Which ligament of the knee prevents anterior translation of the tibia relative to the femur?
Answer: Anterior cruciate ligament
The anterior cruciate ligament (ACL) resists anterior tibial translation and rotational forces, making it the primary stabilizer against anterior knee displacement.
The soleus muscle differs from the gastrocnemius in that it:
Answer: Crosses only the ankle joint
Unlike the gastrocnemius which crosses both the knee and ankle, the soleus originates below the knee and crosses only the ankle joint.
Which bone marking serves as the attachment site for the patellar tendon on the tibia?
Answer: Tibial tuberosity
The patellar tendon (ligament) inserts on the tibial tuberosity, the bony prominence on the anterior proximal tibia.
Which of the following describes the function of the trapezius muscle's lower fibers?
Answer: Retract and depress the scapula
The lower trapezius fibers retract and depress the scapula, working synergistically with the upper fibers during overhead movements.