Milady Esthetics State Board Practice Test

What type of muscles are known as nonstriated muscles?

1. Voluntary muscles

2. Cardiac muscles

3. Skeletal muscles

4. Involuntary muscles

The correct answer is: Involuntary muscles

Nonstriated muscles, also known as smooth muscles, are classified as involuntary muscles. This means they function without conscious control, which is a defining characteristic of involuntary muscles. Smooth muscles are typically found in the walls of hollow organs, such as the intestines and blood vessels, and they play a crucial role in processes such as digestion and blood circulation by contracting and relaxing in response to various stimuli. In contrast, voluntary muscles, such as skeletal muscles, are under conscious control, allowing for movement of the body. Cardiac muscles, while also striated, are unique to the heart and also operate involuntarily but are not categorized as nonstriated. Understanding the distinction between striated and nonstriated muscles, as well as voluntary and involuntary control, helps to clarify this classification. The recognition of how smooth muscles function in an involuntary context is essential for grasping the broader concept of muscle types in the human body.