Muscular System

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Understanding chronic inflammation, which contributes to heart disease, Alzheimer's and a variety of other ailments, may be a key to unlocking the mysteries of cancer" PDF. A very slight change in the length of the biceps causes a much larger movement of the forearm and hand, but the force applied by the biceps must be higher than the load moved by the muscle. Pathogens can rapidly evolve and adapt, and thereby avoid detection and neutralization by the immune system; however, multiple defense mechanisms have also evolved to recognize and neutralize pathogens. The immune system, which is made up of special cells, proteins, tissues, and organs, defends people against germs and microorganisms every day. Other basic immune mechanisms evolved in ancient eukaryotes and remain in their modern descendants, such as plants and invertebrates. Here, the immune system adapts its response during an infection to improve its recognition of the pathogen. The muscle that produces any particular movement of the body is known as an agonist or prime mover.

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Your heart pumps blood through a complex network of blood vessels. When your blood circulates through your digestive system, for example, it picks up nutrients your body absorbed from your last meal. Your blood also carries oxygen inhaled by the lungs. Your circulatory system delivers oxygen and nutrients to the other cells of your body then picks up any waste products created by these cells, including carbon dioxide, and delivers these waste products to the kidneys and lungs for disposal.

Each of your body systems relies on the others to work well. Your respiratory system relies on your circulatory system to deliver the oxygen it gathers, while the muscles of your heart cannot function without the oxygen they receive from your lungs.

The bones of your skull and spine protect your brain and spinal cord, but your brain regulates the position of your bones by controlling your muscles. The circulatory system provides your brain with a constant supply of oxygen-rich blood while your brain regulates your heart rate and blood pressure.

Even seemingly unrelated body systems are connected. Your skeletal system relies on your urinary system to remove waste produced by bone cells; in return, the bones of your skeleton create structure that protects your bladder and other urinary system organs.

Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain internal stability and balance, otherwise known as homeostasis.

Disease in one body system can disrupt homeostasis and cause trouble in other body systems. Scroll down, place your cursor on the body system you want to explore, and click. What is normal cardiac anatomy and physiology? What are some common cardiovascular diseases? How do these diseases manifest themselves?

Help your students discover the answers with these resources. Have your students read the engaging introduction to sexual and asexual reproduction, and then test their knowledge with an activity. The full-color infographic helps them review the human reproductive system in concise detail. Start by exploring the major glands and organs of the endocrine system. Then provide students with an activity that asks them to identify endocrine tissues.

The review centers on an essential question: What are the locations, hormones, and regulatory functions of the 9 glands and organs in the system? What are the main functions of our digestive system, what are the organs that comprise it, and how does it work?

Help your students find the answers as they trace the path of food from ingestion to solid waste elimination. Build and review to reinforce learning. Introduce your students to the human respiratory system with a colorful, informative infographic. Build their knowledge with an article on the mechanics of breathing.

Review and reinforce with a graphic organizer that focuses on the major organs in the system as well as respiratory pathologies. Explore the vital role the lymphatic system plays in the body's immunity. Our featured activity focuses on allergies and levels of allergic reaction. Then review lymphatic system structure and function with the help of a graphic organizer. The urinary system helps maintain proper fluid balance inside the body.

Teach key aspects of its structure and function with this detailed infographic. The activity is designed to give students an understanding of normal and abnormal urine composition.

Use the graphic organizer to review both the urinary system and common urological conditions. This infographic focuses on the how the central and peripheral nervous systems work together.

Then review core functions of the system with the graphic organizer. Teach the 3 types of muscle tissue and their functions with the help of this infographic. In "Chicken Wing Musculature," our featured activity, students observe and draw human muscle tissue and dissect a chicken wing.

The graphic organizer offers an opportunity to compare and contrast muscle types and movement. This infographic illustrates key functions of the human skeleton, bone tissue, and cartilage. Build a model that demonstrates the flexing action of the human hand with the activity "Flex and Extend. Explore the main structures and functions of the integumentary system with this infographic. Build with an activity that explores the density of mechanoreceptors in the skin on the hand.

The review covers structure and function as well as integumentary system diseases and disorders. Also for the purposes of classroom use only, teachers may make an electronic file or overhead transparency of any or all pages in these resources. Login or Register My Account Login or register now to maximize your savings and access profile information, order history, tracking, shopping lists, and more. Login Create an Account. My Cart Your Shopping Cart is currently empty.

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Muscular System Anatomy