Fitness and Programming

What name is given to a bundle of muscle fibers?

• Epimysium

• Endomysium

• Perimysium

• Fascicle

What is the name given to the basic contractile unit of muscle?

• Muscle Fiber

• H-zone

• Sacromere

• Neuromuscular junction

In which of the following muscle actions does a muscle shorten while contracting?

• Concentric

• Eccentric

• Isometric

• Isokinetic

Which neurons conduct impulses from the central nervous system to the muscles?

• Efferent

• Afferent

• Sensory

• Synapse

Which division of the skeleton includes the bones of the upper and lower limbs?

• Axial Skeleton

• Appendicular Skeleton

• Central Skeleton

• Peripheral Skeleton

The heart is composed of how many chambers?

• 1

• 2

• 3

• 4

Reducing the oxygen saturation of hemoglobin is a beneficial response.

• True

• False

The electrical conduction system of the heart begins with which aspect?

• Atrioventicular Node

• Sinoatrial Node

• Purkinje Fibers

• Right Ventricle

Which if the following refers to the amount of air left in the lungs after normal exhalation?

• Vital Capacity

• Tidal Volume

• Residual Volume

• Functional Residual Capacity

Which of the following defines metabolism?

• Sum of all anabolic reactions only

• Sum of all catabolic reactions only

• Sum of all anabolic and catabolic reactions

• Total concentration of ATP