If a neurotransmitter binds to and opens a potassium (K+) channel in the membrane of a neuron at rest, the neuron’s membrane potential will:

Which of the following would cause an increase in a populations density:

Type the letter in the blank beside the function that matches the region on the neuron diagram below. ( 6 points).   _______ Secretes neurotransmitters via exocytosis when stimulated _______ Propagates electrical impulse known as the action potential _______ Receives input from other neurons in the form of neurotransmitters binding to receptors _______ Trigger zone – if input is strong enough this area can trigger an action potential _______ Insulates the action potential so it can travel faster _______ Control center of the cell where neurotransmitters are made and packaged  

An modality of a stimulus is encoded:

An elite marathon runner whose muscles are resistant to fatigue while running long distances has a higher percentage of which type of muscle fibers?

Which of the following is a characteristic of an action potential:

During the contraction cycle the myosin head binds to:

Motor neurons have multiple extensions from the cell body including many dendrites and one axon.  Therefore these neurons are classified as:

What are the contractile proteins of the skeletal muscle cell in vertebrates?

What causes the release of neurotransmitters from vesicles (exocytosis) when an action potential arrives at the axon terminal?