1. If the compressive load on the intervertebral disk of a person weighing 500 N

Question

1. If the compressive load on the intervertebral disk of a person weighing 500 N is equivalent 40% of body weight and the disk has a surface area of 10 cm^2, what is the compressive stress on the disk?

10 N/cm2

50 N/cm2

100 N/cm2

20 N/cm2

2. Which of the following are transverse plane movements at the shoulder?

Horizontal abduction

Medial rotation

Abduction

Both a and c

Both a and b

3. What are the units for inertia?

Has no units

N/cm2

N

Kg

Kg/m3

4. What kind of force develops in the Achilles tendon when one plantar flexes the ankle to stand on the balls of the feet?

Compression

Tension

Shear

Torsion

5. The main mechanism responsible for the difference in shortening velocity between fiber types Is the rate of calcium influx from the sarcoplasmic reticulum

True

False

6. The ability of a muscle to be stretched without muscle damage is termed

Extensibility

Elasticity

Contractility

Excitability

Explanation / Answer

2) both A and B above

3) the units for inertia is Kg

6) Extensibility

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