True or False: Local potentials are used for long distance signaling.

What is the correct term for the cylindrical organelles in a muscle cell that contains bundles of specialized proteins primarily used for muscle contraction?

Short Answer Section (4 points each): Six questions are listed below, each worth 4 points. For full credit, you must answer five of the questions. If you choose to answer all six, you will be given bonus points. Partial credit will be given for each question. 1. Briefly describe the process of mastication. Be sure to include the correct names of the 4 muscles (that we discussed) involved in mastication, as well as how the function of each bone contributes to the process of chewing.   2. First, pick one muscle that moves the scapula and pectoral girdle. Then, describe its origin, insertion, and one important function of the muscle.   3. First, pick one muscle of the posterior thigh and leg. Then, describe its origin, insertion, and one important function of the muscle.   4. Briefly describe the important steps of an action potential.   5. Describe the structure of a sarcomere at rest. Be sure to include terms such as Z discs, I band, A band, H zone, zone of overlap, and which of these parts creates striations.   6. Briefly describe the important steps of the contraction phase during skeletal muscle contraction.

Which of the following is the term for the branched ends of an axon that create synapses with the target cell?

Which of the following is not a member of the four quadriceps femoris muscles?

Which of the following is the part of a sarcomere where the thick and thin filaments overlap?

In a chemical synapse, where do the presynaptic vesicles secrete their neurotransmitters?

The ____________________ muscle provides most of the force required for movement. It spans the joint needing to be moved and is also called the prime mover.

What are the two general functions of the three hamstring muscles?

True or False: The Peripheral Nervous System (PNS) consists of the brain and spinal cord.