Do Now: 02/15-19 On your own sheet of paper: Predict how well you did on the Unit 5 Exam. How does this compare to your grade for Unit 4?

Unit 5 Test No test corrections, so why should we reflect on what we missed? These questions will likely be on the final and on the CAST test! Unlike prior years the CAST now counts for 20% of your second semester grade.

Reflection Guide Follow the directions to complete the handout. Make sure you completely answer the questions on the back!

Unit 6: Muscle System Muscle System: Skeletal Muscle February 15 or 19, 2013 Muscle System: Skeletal Muscle Function: 1. list out the three purposes of the muscular system 2. 3. Structure: Composed of connective tissue, muscle tissue, nervous tissue

Connective Tissue Many muscles can be at the same location in the body. _________________- is the connective tissue separates muscles and holds it in position

Muscle Tissue The anatomy of a muscle consists of smaller and smaller bundles of different things. ___________-bundles of muscle fibers that make up a muscle Myofibril- bundles of protein fibers that make up a muscle fiber Muscle fiber- the basic unit of a muscle made of __________

Connect: What is the Z line? Myofibril Anatomy A myofibril is made of alternating strands of thick and thin protein that don’t go all of the way down the myofibril. Two components: Myosin: Actin: Sarcomere: the repeating unit of a myofibril that goes from Z line to Z line Connect: What is the Z line?

So what does that look like? Muscle Fascicle Muscle fiber Myofibril

On your notes Put the following in order from smallest to largest: Muscle, Muscle fibers, Myofibrils, Fascicles, Actin and Myosin

Practice Complete the following handout Begin answering Chapter 8 “Check your recall” questions 1-14 These questions go into great detail that we did not cover during notes. Use your textbook to explore the additional structures of skeletal muscle, and the way in which it functions