7. Use the key to label the structures on the thoracic region of the vertebral column. Key: a b. C. d. e intervertebral discs intervertebral foramina spinous prosesses thoracic vertebrae transverse processes Instructors may assign a portion of the Review Sheet questions using Mastering ABP EXERCISE REVIEW SHEET Microscopic Anatomy and Organization of Skeletal Muscle Name Lab Time Date Skeletal Muscle Cells and Their Organization into Muscles 1. Use the items in the key to correctly identify the structures described below 1. connective tissue covering a bundle of muscle fibers a. endomysium 2. bundle of muscle fibers b epimysium c fascicle 3. contractile unit of muscle d myofibril 4. Superficial sheath that covers the entire muscle e myofilament 5. thin areolar connective tissue surrounding each muscle fiber 1. permysium 6. plasma membrane of the muscle fiber 9 sarcolemma 7. a long organele with a banded appearance found within munde fibers h sarcomere i tendon 8. actin-or myosin-containing structure 9 cord of collagen fibers that attaches a muscle to a bone 2. List three reasons why the connective tissue sheaths of skeletal muscle are important 3. Why are there more indirect–that is, tendinous-muscle attachments to bone than there are direct attachments? 4. How does an aponeurosis differ from a tendon structurally How is an aponeurosis functionally similar to a tendon?