Lab 3

axon

Action potentials can maintain their amplitude and strength down the length of the ___. a. channel b. cell c. axon d. membrane

build, receptor

During memory, the cell will ____ more of these ____ proteins. a. remove, receptor b. build, receptor c. destroy, inhibitor d. build, inhibitor

through changes in the electrical potential of the membrane

How do neurons transmit information? a. through changes in the electrical potential of the mitochondria b. through changes in the electrical potential of the nucleus c. through changes in the electrical potential of the atoms d. through changes in the electrical potential of the membrane

summation

Multiple action potentials will combine at the axon hillock in a process known as: a. autolysis b. ciliation c. autophagy d. summation

dendrites

The arrows are indicating which structures? a. nuclei b. cell bodies c. mitochondria d. dendrites

the unequal distribution of potassium and sodium ions

The resting potential of a membrane of a neuron is established by: a. the equal distribution of potassium and calcium ions b. the unequal distribution of potassium and sodium ions c. the equal distribution of potassium and sodium ions d. the unequal distribution of potassium and calcium ions

action potential, depolarization

This ____ causes ____. a. action potential, neurotransmitting b. action potential, depolarization c. depolarization, action potential d. dendrite, action potentials

action potential

This arrow is pointing to what process? a. neurotransmitting b. synapse c. receptors d. action potential

motor neuron

To what type of cells is this arrow pointing? a. interneuron b. motor neuron c. none of these d. sensory neuron

sensory neuron

To what type of cells is this arrow pointing? a. sensory neuron b. motor neuron c. interneuron d. none of these

neurotransmitters

What are these structures known as? a. membranes b. neurotransmitters c. cells d. axons

docking proteins

What is the name given to these structures as indicated by the arrow? a. microglia b. receptors c. neurotransmitters d. docking proteins

action potential, depolarization, open voltage gated channels, dock to chemical on the surface of vesicles, vesicles merge and dump neurotransmitters

What is the sequence of events that is occurring during this reaction? a. action potential, depolarization, open voltage gated channels, dock to chemical on the surface of vesicles, vesicles merge and dump neurotransmitters b. depolarization, open voltage gated channels, dock to chemical on the surface of vesicles, vesicles merge and dump neurotransmitters, action potential c. depolarization, dock to chemical on the surface of vesicles, vesicles merge and dump neurotransmitters, action potential, open voltage gated channels d. action potential, depolarization, open voltage gated channels, vesicles merge and dump neurotransmitters, dock to chemical on the surface of vesicles

presynaptic vesicles

What is the term given to these as indicated by the arrow? a. presynaptic vesicles b. none of these c. postsynaptic vesicles d. synaptic vesicles

depolarization

What is the term to which these arrows are referring? a. polarization b. depolarization c. potentials d. actions

synaptic cleft

What is the term used for this region? a. gap region b. synaptic cleft c. subcutaneous fascia d. synaptic space

synaptic cleft

What is this region known as? a. synaptic space b. synaptic cleft c. none of these d. synaptic junction

excitatory

What type of messages are these as shown by the arrows? a. neither of these b. both of these c. excitatory d. inhibitory

skeletal

What type of muscle cells are these as being shown by the arrow? a. smooth b. skeletal c. none of these d. cardiac

chemically-gated

Which type of channel is this one indicated by the arrow? a. leak b. chemically-gated c. none of these d. voltage-gated