ACSM-CPT ACSM-CPT Anatomy and Biomechanics 2 — Questions and Answers
Question 1: Which joint type allows the greatest range of motion in multiple planes?
- Hinge joint
- Pivot joint
- Ball-and-socket joint (Correct answer)
- Saddle joint
Correct answer: Ball-and-socket joint
Ball-and-socket joints, such as the hip and shoulder, allow multiplanar movement including flexion, extension, rotation, and circumduction.
Question 2: The quadriceps femoris group is composed of how many muscles?
- Two
- Three
- Four (Correct answer)
- Five
Correct answer: Four
The quadriceps femoris consists of four muscles: rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.
Question 3: Which structure connects muscle to bone?
- Ligament
- Tendon (Correct answer)
- Fascia
- Cartilage
Correct answer: Tendon
Tendons are dense connective tissue structures that attach skeletal muscle to bone and transmit contractile forces.
Question 4: During a lateral lunge, which plane of motion is primarily involved?
- Sagittal
- Transverse
- Frontal (Correct answer)
- Diagonal
Correct answer: Frontal
A lateral lunge involves side-to-side movement, which primarily occurs in the frontal plane.
Question 5: Which muscle group is the primary antagonist to the quadriceps during knee extension?
- Gluteus medius
- Hamstrings (Correct answer)
- Hip flexors
- Calves
Correct answer: Hamstrings
The hamstrings are the primary antagonists to the quadriceps because they oppose knee extension by performing knee flexion.
Question 6: The rotator cuff is composed of which four muscles?
- Supraspinatus, infraspinatus, teres major, subscapularis
- Supraspinatus, infraspinatus, teres minor, subscapularis (Correct answer)
- Deltoid, supraspinatus, infraspinatus, teres minor
- Subscapularis, biceps, teres minor, supraspinatus
Correct answer: Supraspinatus, infraspinatus, teres minor, subscapularis
The rotator cuff consists of the supraspinatus, infraspinatus, teres minor, and subscapularis, which stabilize the glenohumeral joint.
ACSM-CPT ACSM-CPT Anatomy and Biomechanics 2
Which joint type allows the greatest range of motion in multiple planes?