IB SEHS B.1.3 Muscular Functions

Which of the following describes a muscle’s ability to contract and generate force?

• Extensibility

• Contractility

• Elasticity

• Hypertrophy

What is the ability of a muscle to be stretched beyond its normal resting length?

• Elasticity

• Contractility

• Extensibility

• Hypertrophy

Which muscle property allows it to return to its original shape after being stretched?

• Contractility

• Elasticity

• Hypertrophy

• Atrophy

What is the increase in muscle size due to strength training called?

• Atrophy

• Hypertrophy

• Extensibility

• Elasticity

What is the decrease in muscle size due to disuse or injury?

• Hypertrophy

• Atrophy

• Contractility

• Fixation

Which type of muscle is involuntary and found in internal organs?

• Skeletal Muscle

• Cardiac Muscle

• Smooth Muscle

• Type I Muscle

Which type of muscle is only found in the heart?

• Skeletal Muscle

• Cardiac Muscle

• Smooth Muscle

• Type IIx Muscle

Which muscle type is voluntary and attached to bones?

• Smooth Muscle

• Cardiac Muscle

• Skeletal Muscle

• Type IIa Muscle

Which part of a neuron receives signals from other neurons?

• Axon

• Dendrites

• Myelin Sheath

• Nodes of Ranvier

Which part of a neuron carries the signal away from the cell body?

• Axon

• Dendrites

• Synapse

• Motor End Plate