Muscle Basics

1. Skeletal muscle: a. Striated b. Voluntary control c. Many nuclei per cell d. Longest fibers (extend the length of the whole muscle) 2. Cardiac muscle: a. Striated b. Involuntary control c. One nucleus per cell 3. Smooth muscle: a. Not striated b. Involuntary control c. One nucleus per cell

1. Excitability - respond to stimuli like neurotransmitters or hormones with electrical signals 2. Contractility - ability to develop tension 3. Extensibility - can stretch 4. Elasticity – assumes original length after stretching

1. Movement of the whole body or body parts 2. Heat production 3. Maintain posture and stabilize joints

<ol> <li>Superficial fascia (subcutaneous layer or hypodermis): a. Areolar &amp; adipose - stores water and fat, decreases heat loss, protects underlying tissues 2. Deep fascia: a. Dense irregular - holds together functional groups of muscle, allows free movement of muscles, packs spaces between muscles, nerves, and blood vessels</li> </ol> Signup and view all the answers

<p>Pumping blood</p> Signup and view all the answers

<p>Cardiac</p> Signup and view all the answers

<p>Moving substances through hollow organs</p> Signup and view all the answers

<p>Excitability</p> Signup and view all the answers

<p>Deep fascia</p> Signup and view all the answers

<p>Maintaining posture and stabilizing joints</p> Signup and view all the answers