1 This is Jeopardy Muscle Physiology

2 Category No. 1 Category No. 2 Category No. 3 Category No. 4 Category No Final Jeopardy

3 C1-100-The answer is… These proteins are thin filaments with a covered active site. actin Back

4 C1-200-The answer is… Large diameter, large glycogen reserves and few mitochondria are characteristics of this type of muscle Fast fibers Back

5 C1-300-The answer is… What is the advantage of having many nuclei in skeletal muscle? Ability to produce large numbers of proteins and enzymes Back

6 C1-400-The answer is… What is it called when all muscle fibers are in complete contraction? Complete tetanus Back

7 C1-500-The answer is… Skeletal muscles are formed from cells called: myoblasts Back

8 C2-100-The answer is… These thick fibers look like golf clubs myosin Back

9 C2-200-The answer is… At rest, active sites are covered by tropomyosin Back

10 C2-300-The answer is… The ability of smooth muscle to function over a wide range of lengths is called plasticity Back

11 C2-400-The answer is… When acetylcholine binds to the motor end plate, the membrane becomes More permeable to sodium ions Back

12 C2-500-The answer is… Action potentials are conducted into skeletal muscle by T- tubules Back

13 C3-100-The answer is… Why do athletes warm up before an event? (to induce what?) recruitment Back

14 C3-200-The answer is… At what point do sarcomeres attach to each other? Z- line Back

15 C3-300-The answer is… What is the purpose of creatine? To store energy from ATP Back

16 C3-400-The answer is… This type of muscle fiber is most resistant to fatigue Slow twitch. Back

17 C3-500-The answer is… This type of contraction is represented by a single stimulus/contraction/relaxation sequence. twitch Back

18 C4-100-The answer is… The functional unit of a skeletal muscle fiber is: sarcomere Back

19 C4-200-The answer is… The space between the neuron and the muscle Synaptic cleft Back

20 C4-300-The answer is… The dense layer of collagen fibers on the outside of a muscle epimysium Back

21 C4-400-The answer is… The type of contraction in which the muscle fibers produce increased tension but do not change length. isometric Back

22 C4-500-The answer is… What does the sarcomplasmic reticulum store and where is it stored? Calcium ions in the terminal cisternae Back

23 C5-100-The answer is… The cell membrane of a skeletal muscle cell is called the sarcolemma Back

24 C5-200-The answer is… The cytoplasm of a skeletal muscle cell is called: sarcoplasm Back

25 C5-300-The answer is… In what ways can a skeletal muscle relax or lengthen? (3) Gravity, opposing muscle, elastic forces (titin) Back

26 C5-400-The answer is… Calcium ions bind with this molecule to reveal active sites. troponin Back

27 C5-500-The answer is… What is the purpose of the Cori cycle? Explain Lactic acid goes to the liver and is broken down and returned to the muscles as pyruvic acid (1/2 glucose). Back

28 Final Jeopardy List the events that occur in a muscle contraction from the initial impulse to return to resting phase. Impulse sends Ach across synaptic cleft Ach initiates Na+ through T-tubules Calcium ions are released from SR Calcium binds to troponin – tropomyosin moves from active site Myosin cross bridges bind to actin Myosin heads pivot towards M line Myosin heads bind with ATP and detach from actin Free myosin heads split ATP into ADP and P Back End Game