BIOS 252 Final Exam Review Questions With 100% Correct Answers.

What are the three types of muscle tissue? - Skeletal, Cardiac, and Smooth What are characteristics of skeletal muscle? - Striated, voluntary, multinucleated, somatic nervous system control What are characteristics of smooth muscle? - Non-striated, involuntary, uninucleated, autonomic nervous control What are characteristics of cardiac muscle? - Striated, branching, uninucleated, involuntary, autonomic nervous control, intercalated discs (gap junctions) What is the thick filament? - Myosin What is the thin filament? - Actin What are mediating proteins of muscle tissue? - Troponin and Tropomyosin What does Calcium bind to? - Troponin Where does Calcium come from? - Sarcoplasmic Reticulum When Calcium binds to Troponin, what happens? - There is a confirmational change wherein Troponin moves Tropomyosin away so that Myosin can bind to Actin What are characteristics of all muscles? - Electrical excitability, extensibility, elasticity, contractility What are the three meninges from outer to inner, including spaces? - Dura Mater, Arachnoid Mater, Subarachnoid Space (where CSF is found), Pia Mater (directly attached to spinal cord and brain)What is the filum terminale? - An extension of the Pia Mater which attaches the spinal cord to coccygeal segment What is an isometric contraction? - Length of muscle does not change, but tension does What is an isotonic contraction? - Length of muscle changes, but tension does not What is a concentric isotonic contraction? - Muscle shortens