Gross Anatomy Exam 1 (study guide questions)-well answered questions

What are the functions of skeletal muscle? 1. movement 2. stability 3. communication 4. control of body openings and closings 5. heat production How is skeletal muscle organized from smallest to largest units? Smallest - muscle fiber largest - fascicle Stability of skeletal muscle involves? posture and keeping bones in place movement of skeletal muscle involves? digestion and respiration communication of skeletal muscle involves? facial expression, writing/texting, and talking control of body openings and closings of skeletal muscle involves? sphincters what is the basic structural unit of a muscle? muscles fiber muscle fibers grouped in bundles are called? fascicle how are fascicles and muscle fibers joined together? connective tissue What are the functions of the connective tissue investment of skeletal muscle? connect muscle to bone or other structure provides a route where nerves and blood vessels reach the muscle fibers provides a non-contractile framework which allows the contraction of a muscle to be transmitted to bone What are the three layers of connective tissue? Epimysium perimysium endomysium What layer of connective tissue is associated with each muscle fiber? endomysium what layer of connective tissue is associated with each fasiculi? perimysium what layer of connective tissue is associated with the entire muscle? epimysium What is the epimysium continuous with? continuous with deep fascia and continues as a tendon What are the general characteristics of skeletal muscle fibers? explained 1. each muscle fiber is long and multinucleated; around the peripheral layer 2. each muscle fiber has myofibrils 3. each has a tough specialized membrane called the sarcolemma 4. sarcoplasm: "flesh" cytoplasm of a muscle fiber