Chapter 10 - Muscular Tissue

Question 1

3 Types of Muscle Tissue

Answer 1

Skeletal, Smooth Muscle, and Cardiac

Question 2

Functions of Muscular Tissue

Answer 2

1. Producing body movements
2. Stabilizing body positions
3. Storing and moving substances within the body by using sphincters
4. Generating heat (thermogenesis)

Question 3

Muscular tissue has the ability of:

Answer 3

1. Electrical excitability (action potentials) - Ability to respond to certain stimuli by producing electrical signals.
2. Contractility - Can shorten in length
3. Extensibility - Can stretch when pulled
4. Elasticity - Ability of a tissue to return to its original shape after contraction or extension

Question 4

Structure of the Skeletal Muscle Tissue

Answer 4

1. Epimysium - outermost layer; encircles entire muscle
2. Perimysium - surrounds groups of muscle fibers separating them into fascicles
3. Endomysium - interior and separates bundles of muscle fibers

Question 5

Microscopic Anatomy of a Skeletal Muscle Fiber

Answer 5

1. Sarcolemma
2. T tubules
3. terminal cisternae
4. Sarcoplasmic reticulum
5. Sarcoplasm