Chapter 11 Intro and Tasks
The Muscular System
Many A&P students feel that this segment of content is the most grueling part of the course! Learning all the muscles of the body—along with all of their origins, insertions, and actions—is probably beyond the scope of most undergraduate A&P courses. Nonetheless many muscles can be learned, especially if you think of them in terms of physical fitness as you did in Chapter 10. This knowledge is really very fundamental to many applied health careers—including Nursing! You might be surprised to learn the extent to which professionals use their knowledge of muscle anatomy in their respective fields. For example, athletic trainers know that slight changes in wrist angle during weight lifting can help to target the biceps brachii (e.g., biceps curls) vs. the brachioradialis (e.g., hammer curls) vs. the brachialis (e.g. overhand/pronated hand curls). Once you learn the insertions of the muscles, it becomes obvious why these subtly different exercises target different muscles. Each one exposes a different bone location to a greater portion of the load, exercising the muscle that inserts there.
- Describe the arrangement of fascicles in the various types of muscles, and explain the resulting functional differences.
- Describe the classes of levers, and explain how they make muscles more efficient.
- Predict the actions of a muscle on the basis of its origin and insertion, and explain how muscles interact to produce or oppose movements.
- Explain how the name of a muscle can help identify its location, appearance, or function.
- Identify the principal axial muscles of the body, plus their origins, insertions, actions, and innervation.
- Identify the principal appendicular muscles of the body, plus their origins, insertions, actions, and innervation, and compare the major functional differences between the upper and lower limbs.
- Identify age-related changes of the muscular system.
- Explain the functional relationship between the muscular system and other body systems, and explain the role of exercise in producing various responses in other body systems.
Below are the tasks associated with this chapter. You can access the following items by clicking the links below.
- Read Chapter 11 in your textbook.
- Take notes on the as you read.
Review the media files associated with this chapter by clicking on the links below.
- view the slide presentation. Click the correct answer to the question within the presentation. Progress to the next question by using the arrow to move to the next slide. This serves as both a good preview and review to the content in this chapter.
- view the slide. Click on a dollar amount to see the question. Answer the question within the presentation. Progress to the next question. This serves as a good preview and review of the material in this chapter.
You can view the corresponding video presentations by going to the Pearson website (Links to an external site.).
Interactive Media (Optional Resources)
You can view the applicable interactive media presentations by going to the Pearson website. These are optional and are not graded.