Question

An increase in contractility (increases or decreases) the amount of muscle shortening by allowing the muscle to reach a shorter length.

A) Increases
B) Decreases
C) No effect
D) Varies with age

Answer 1

An increase in contractility increases the amount of muscle shortening by allowing the muscle to reach a shorter length.

Step-by-step explanation:

An increase in contractility increases the amount of muscle shortening by allowing the muscle to reach a shorter length. Contractility refers to the ability of a muscle to forcefully contract, and when contractility increases, the muscle is able to generate more tension and shorten more. This is because an increase in contractility leads to stronger muscle contractions.