Syllabus BigBlueButton Collaborations What are the characteristics of cardiac muscle? A. Cells are short and branching. B. Cells have multiple nuclei at the periphery of the cell. C. They are composed of thick and thin filaments. E. All of the above D. The functional contractile unit is the sarcoplasm Chat My Media Student Feedback on Instruction Zoom McGraw-Hill Connect MyLab and Mastering Honorlock Announcements Qwickly Tools Library Modules Quizzes ○ A & C ○ A,B &C O B,C &D ○ A & B ◄ Previous No new data to

A bands: Dark areas that correspond to the areas where thick filaments are present. • I hands: Light areas that contains only thin filaments. . Z line: A protein disk within the I band that anchors the thin filaments and connects adjacent myofibrils. • H zone: Located in the middle of each A band, this lighter stripe appears corresponding to the region between the thin filaments. • M line: Protein fibers that connect neighboring thick filaments. Sarcomeres: The region of the myofibril between two Z lines. ** Keep in mind, this information is crucial for your understanding of the sliding filament theory.

Compare 2 types of Cell Muscle Pancreas Describe a heart muscle cell Describe a pancreas cell 1. Organelles difference 1. Organelles difference 2. Function of muscle 2. Function of muscle 3. Location in body 3. Location in body

Vhat are the two types of muscle movement categories? Give an example for both. Describe Swammerdam's experiment and Galvani's experiment with frog legs. What did they tell us about muscle contraction? What is the sliding-filament model for muscle contraction? Describe the role of actin and myosin of sarcomeres in the model (be specific). Describe how an action potential triggers muscle contraction. Know the specific molecules involved. . Describe the structural and functional differences between smooth, cardiac and skeletal muscles. What are the three types of skeletal muscle fibers and how do they differ in structure and function? Next « Previous MacBook Pro