Question

Which of the following characteristics are shared in common by all three types of muscle tissue?

Autorhythmicity
Irritability
Elasticity
Contractility
Extensibility
Ca dependent contraction
a) 2, 3, 4
b) 1, 5, 6
c) 2, 4, 6
d) 1, 3, 5

Answer 1

All three types of muscle tissue (skeletal, cardiac, and smooth) share common characteristics of excitability, contractility, and extensibility, which relate to the options irritability (excitability), elasticity, and contractility (choices 2, 3, 4).

Step-by-step explanation:

The characteristics shared in common by all three types of muscle tissue (skeletal muscle, cardiac muscle, and smooth muscle) include excitability, contractility, and extensibility. Excitability refers to the ability of muscle tissue to respond to a stimulus, such as an electrical signal. Contractility is the capacity for muscle tissue to shorten actively and generate force, allowing movement when attached to bones.

Lastly, extensibility describes the ability of muscle tissue to stretch or extend beyond its original length. Therefore, the correct options that are common to all muscle types are irritability (excitability), elasticity, and contractility, which corresponds to answer choice a) 2, 3, 4.