SCS Anatomy & Biomechanics

Question 1

The rotator cuff is composed of which four muscles?

Accepted Answer

Supraspinatus, infraspinatus, teres minor, subscapularis

Answer

Supraspinatus, infraspinatus, teres major, subscapularis

Answer

Supraspinatus, deltoid, teres minor, subscapularis

Answer

Supraspinatus, infraspinatus, teres minor, biceps brachii

Question 2

Which ligament primarily prevents anterior tibial translation relative to the femur?

Accepted Answer

Anterior cruciate ligament

Answer

Posterior cruciate ligament

Answer

Medial collateral ligament

Answer

Lateral collateral ligament

Question 3

The Q-angle is measured using which anatomical landmarks?

Accepted Answer

ASIS to center of patella to tibial tuberosity

Answer

Greater trochanter to center of patella to tibial tuberosity

Answer

PSIS to center of patella to tibial tuberosity

Answer

ASIS to lateral femoral condyle to fibular head

Question 4

During normal walking gait, the center of mass follows which movement pattern?

Accepted Answer

A sinusoidal path in both vertical and lateral planes

Answer

A straight horizontal line

Answer

A figure-eight pattern

Answer

A circular arc pattern

Question 5

Which structure provides the primary static restraint against inferior glenohumeral translation with the arm at the side?

Accepted Answer

Superior glenohumeral ligament

Answer

Supraspinatus muscle

Answer

Coracohumeral ligament

Answer

Long head of the biceps tendon

Question 6

The iliotibial band (ITB) originates primarily from which structure(s)?

Accepted Answer

Iliac crest and tensor fasciae latae

Answer

Greater trochanter of the femur

Answer

Gluteus maximus alone

Answer

Anterior superior iliac spine alone

Question 7

Open kinetic chain (OKC) knee exercises differ from closed kinetic chain (CKC) exercises primarily because in OKC exercises:

Accepted Answer

The distal segment is free to move

Answer

The distal segment is fixed to a surface

Answer

The exercises are always weight-bearing

Answer

More muscle groups are always recruited