The Muscular System

The two types of striated voluntary or skeletal muscles are attached to the skeleton and controlled by the voluntary nervous system via somatic motor nerves in spinal and some cranial nerves.

The three main functions of the muscular system are movement, posture, and heat production.

Smooth involuntary or visceral muscles are located in the muscle layer of visceral organs and are controlled by the autonomic nervous system via autonomic motor neurons in autonomic, spinal, and some cranial nerves.

<p>Striated involuntary or cardiac muscles are found in the heart and are controlled by the autonomic nervous system via autonomic motor neurons in autonomic, spinal, and some cranial nerves.</p> Signup and view all the answers

<p>The steps involved in muscle fiber contraction are: a) Electrical energy transmitted along transverse tubules, b) Calcium ion release.</p> Signup and view all the answers