Question

Match the terminologies with the correct description.

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i.Contractility}& \text{a. Stretched muscles recoil to the resting length}\\ \text{ii.Excitability}& \text{b. Muscle can be stretched beyond its resting phase}\\ \text{iii.Extensibility}& \text{c. Muscle responds to stimulus by nerves and hormones}\\ \text{iv.Elasticity}& \text{d. Capacity of muscle to contract or shorten}\end{array}$

• A. i).→ c ., ii). → b., iii). → d., iv). → a.
• B. i). → d., ii). → a., iii). → b., iv). → c.
• C. i). → d., ii). → c., iii). → b., iv). → a.
• D. i). → c., ii). → d., iii). → b., iv). → a.

Answer 1

The correct option is C

i). → d., ii). → c., iii). → b., iv). → a.

Muscles have four major functional characteristics: contractility, excitability, extensibility, and elasticity. Contractility refers to the capacity of muscles to contract or shorten forcefully. Excitability means that muscle responds to stimulation by nerves and hormones, making it possible for the nervous system and, in some muscle types, the endocrine system, to regulate muscle activity. Extensibility means that muscles can be stretched to their normal resting length and beyond to a limited degree. Elasticity means that if muscles are stretched, they recoil to their original resting length.