CES Human Anatomy & Biomechanics 3

Question 1

The neutral wrist position is best described as:

Accepted Answer

Straight alignment with the forearm

Answer

Full extension

Answer

Slight flexion 10–15°

Answer

Mild ulnar deviation

Question 2

What is the approximate compression force on the L4/L5 disc when lifting 10 kg with a stooped back?

Accepted Answer

Over 3,000 N

Answer

100 N

Answer

350 N

Answer

700 N

Question 3

Which type of muscle contraction generates the most force?

Accepted Answer

Eccentric

Answer

Concentric

Answer

Isometric

Answer

Isokinetic

Question 4

The rotator cuff consists of how many muscles?

Accepted Answer

4

Answer

2

Answer

3

Answer

6

Question 5

What biomechanical principle explains why a longer handle on a tool reduces grip force requirements?

Accepted Answer

Leverage (moment arm) principle

Answer

Newton's first law

Answer

Pascal's principle

Answer

Hooke's law

Question 6

Which connective tissue structure wraps around a tendon and secretes lubricating fluid?

Accepted Answer

Tendon sheath (tenosynovium)

Answer

Fascia

Answer

Bursa

Answer

Periosteum