Module 4 Lesson 1 Notes Guide Document Name: Allie Hufton Please complete the following notes guide as you watch the presentation and review the flip book. 1.What are three types of muscles found in your body? Cardiac Muscle, Skeletal Muscle and, Smooth Muscle 2.Intercalcated disks connect the ends of cardiac muscle. What does this allow for? 3. Complete this chart (start when learning about cardiac muscle and return as finish when the other types are discussed.) Type of Muscle Voluntary or Involuntary? Striations (yes or no) Cardiac Involuntary yes Smooth Involuntary no Skeletal voluntary 4.Where is smooth muscle found? in the walls of organs such as the intestines, stomach, bladder, esophagus, circulatory vessels, and eyes 5.What are two non-motor functions of the skeleton? Running, writing 6. Define anatagonistic muscle pair and give an example. The biceps and triceps are considered an antagonistic pair because as one muscle contracts, the other muscle relaxes 7.Why do skeletal muscle fibers have more than one nuclei? it means there are multiple copies of genes, and, therefore, large amounts of proteins and enzymes required for contraction can be produced 8.What is a sarcomere?the functional unit of the muscle fiber, which means it isthe smallest contractile unit in muscle tissue 9.To what are actin filaments attached?part of the contractile apparatus, in muscle and non-muscle cells 10. Actin is considered to be the ____ Thin _____ filaments while myosin is the __ Thick __ filaments. (Use terms thin and thick.) 11.In a resting muscle, the troponin-tropomyosin regulatory proteins cover what? It covers the muscle 12.What molecule is released into the sarcoplasm when a muscle is stimulated? It releases myosin 13.What does calcium bind to, and what happens when it does this?troponin, thus causing tropomyosin to shift from the face of the actin filament to which myosin heads need to bind to produce contraction.
- Fall '18
- Calculus, Sternum, muscle atrophy, cardiac muscle., Allie Hufton