Question

reteaching activity
i. directions use information from the lesson about the muscular system to complete the items below.

1. identify the characteristics of the three major types of muscles by placing an x in the correct column.

muscle characteristics made up of fibers forms the heart wall striated involuntary attached to bone acts on lining in passageways in the body and internal organs works together in opposing action its fibers contract or relax in response to nerve impulses mostly voluntary makes up majority of muscle tissue
smooth muscle
skeletal muscle
cardiac muscle

1. what are five tips to help you care for your muscular system and maintain muscle tone?

hydration, nutrition, exercise, protein, and stretch your muscles
ii. directions define each term below in the space provided.

1. flexor: closes a joint
2. extensor: opens a joint
3. tendonitis: overuse, or natural aging of muscles
4. hernia: straining to lift a heavy object

Explanation:

1. Smooth muscle is involuntary and acts on body and internal organs passage - ways. Skeletal muscle is striated, attached to bone, mostly voluntary, and its fibers contract or relax in response to nerve impulses. Cardiac muscle forms the heart wall, is striated, and involuntary.
2. Hydration helps with muscle function, nutrition provides energy and building blocks, exercise builds and maintains muscle, protein is essential for muscle repair and growth, and stretching keeps muscles flexible.
3. A flexor is a muscle that closes a joint.
4. An extensor is a muscle that opens a joint.
5. Tendonitis is often caused by overuse or natural aging of muscles which stress the tendons.
6. Hernias can be caused by straining to lift a heavy object, which can put excessive pressure on the body's tissues.

Answer:

1. Smooth muscle: involuntary, acts on body and internal organs passage - ways.

Skeletal muscle: striated, attached to bone, mostly voluntary, its fibers contract or relax in response to nerve impulses.
Cardiac muscle: forms the heart wall, striated, involuntary.

1. Hydration, Nutrition, Exercise, Protein, Stretching.
2. Closes a joint.
3. Opens a joint.
4. Overuse or natural aging of muscles.
5. Straining to lift a heavy object.