Chapter 5: The Muscular System Section 1 Lesson 5.1 Muscle Tissue Categories and Functions Remember that this power point does not take the place of reading and taking notes from your book chapter.

Muscle Tissue categories functions skeletal smooth cardiac behavioral properties tension and types of skeletal muscle contractions

Muscle Tissue Categories skeletal voluntary striated smooth involuntary no striations cardiac intercalated disks

Muscle Tissue Categories

Skeletal Muscle Organization sarcolemma and endomysium surrounds the muscle fiber perimysium bundles groups of muscle fibers to make up a fascicle epimysium encloses several fascicles to make up a muscle aponeurosis connects muscle to other tissues

Skeletal Muscle Organization

Review and Assessment True or False? 1. Smooth muscle is voluntary. 2. Cardiac muscle has branching fibers. 3. Smooth muscle is multinucleate. 4. Perimysium wraps fascicles to make a muscle. 5. Endomysium surrounds the muscle fibers.

Behavioral Properties of Muscle extensibility–stretch elasticity–snap back irritability–respond contractility–shorten

Muscle Tissue Functions tension and types of skeletal muscle contraction agonist–moves bone antagonist–opposes the movement of the agonist

Concentric Contraction agonist contracts, antagonist relaxes

Eccentric Contraction agonist contracts while lengthening, antagonist relaxes

Isometric Contraction both agonist and antagonist contract

Review and Assessment Match these words with 1–5 below: extensibility, elasticity, irritability, contractility, agonist, antagonist. 1. respond 2. opposes movement 3. stretch 4. shorten 5. causes movement