ART ART Anatomy & Biomechanics 1 — Questions and Answers
Question 1: Which muscle group is the primary hip flexor?
- Iliopsoas (Correct answer)
- Gluteus maximus
- Hamstrings
- Gastrocnemius
Correct answer: Iliopsoas
The iliopsoas, comprising the iliacus and psoas major, is the primary hip flexor.
Question 2: How many muscles make up the rotator cuff?
- 2
- 3
- 4 (Correct answer)
- 5
Correct answer: 4
The rotator cuff has four muscles: supraspinatus, infraspinatus, teres minor, and subscapularis (SITS).
Question 3: Which joint type allows the greatest range of motion?
- Hinge joint
- Ball-and-socket joint (Correct answer)
- Pivot joint
- Gliding joint
Correct answer: Ball-and-socket joint
Ball-and-socket joints, like the hip and shoulder, allow multiplanar movement including rotation.
Question 4: The sciatic nerve originates from which spinal levels?
- C5–C8
- T1–T4
- L4–S3 (Correct answer)
- S1–S5
Correct answer: L4–S3
The sciatic nerve arises from nerve roots L4 through S3 of the lumbosacral plexus.
Question 5: Which connective tissue directly connects muscle to bone?
- Ligament
- Tendon (Correct answer)
- Fascia
- Cartilage
Correct answer: Tendon
Tendons are dense connective tissue that attach muscles to bones and transmit contractile force.
Question 6: The thoracic outlet contains which major neurovascular structures?
- Femoral nerve and artery
- Brachial plexus and subclavian vessels (Correct answer)
- Sciatic nerve and gluteal vessels
- Phrenic nerve and carotid artery
Correct answer: Brachial plexus and subclavian vessels
The thoracic outlet transmits the brachial plexus, subclavian artery, and subclavian vein.
ART ART Anatomy & Biomechanics 1
Which muscle group is the primary hip flexor?