- Which statement is true regarding the action potential?A) The action potential is carried along the glial membrane.B) The action potential is always of the same amplitude and duration in a given cell.C) The action potential is a graded signal.D) The action potential is a long-lasting electrical signal.
- To cross the synapse between two cells, a __________ is released from the first cell (pre-synapse) to activate or inhibit the second cell (post-synapse).A) neurotransmitterB) proteinC) kinesinD) mitochondrion
- Which pairing of a cell structure and function is correct?A) mitochondria; production of cytoplasmB) double layer of lipid molecules; formation of the cell membraneC) synapse; production of filamentsD) microtubules; production of cytoplasm
- The membrane of a nerve cell is composed of __________.A) protein moleculesB) a double layer of lipid moleculesC) cytoplasmD) a double layer of protein molecules
- When an impulse enters a neuron, it is received by the __________ and passed to the next cell via the ____________.A) dendrite; axonB) axon; dendriteC) soma; axonD) soma; dendrite
- What political issues were considered most appropriate for women's interest and participation
- Which pairing of neuronal organelles and their function is correct?A) mitochondria; extraction of energy from nutrientsB) mitochondria; formation of vesiclesC) microtubules; breakdown of proteinsD) microtubules; transport of chemicals across the synapse
- The __________ cells are the most important support cells of the central nervous system.A) SchwannB) glialC) GolgiD) platelet
- Neurotransmitter molecules are secreted from a(n) __________ in response to the arrival of an action potential.A) glial cellB) dendriteC) axon terminalD) mitochondrion
- A key function of glial cells is to __________.A) provide nutrition to the brainB) remove physical debris from the bloodC) secrete cerebrospinal fluidD) insulate a nerve cell from other nerve cells
- What was the purpose of the civil service commission when Congress authorize its creation in 1881
- In the chapter prologue, the major symptom experienced by Kathryn D. was __________.A) manic symptoms while at her jobB) taking a long time to get to sleep at nightC) excessive tirednessD) seizure-like activity just before a meal
- The neuron region that resembles a tree is the __________.A) somaB) axonC) dendritesD) terminal buttons
- A key function of specialized lipid molecules located in the nerve cell is to __________.A) detect the presence of hormones outside the cellB) form the membraneC) form channels to carry ions in and out of the cellD) transport molecules into the cell
- The process in which substances are transported from the terminal buttons at the end of the axon back to the soma is referred to as ________________.A) retrograde somatoplasmic transportB) anterograde somatoplasmic transportC) anterograde axoplasmic transportD) retrograde axoplasmic transport
- Rami uses these neurons to bend his arm to flex his muscles for his girlfriend.A) sensory neuronsB) motor neuronsC) afferent neuronsD) local interneurons
- The brain and spinal cord make up the __________ nervous system; the nerves and sensory organs make up the __________ nervous system.A) peripheral; centralB) central; sympatheticC) central; peripheralD) peripheral; sympathetic
- The physical gap between two nerve cells across which messages are transmitted is the __________.A) glial junctionB) axonal contactC) synapseD) neural gap
- Similarities between sensory and motor neurons include __________.A) functioning along a retrograde pathwayB) functioning along an anterograde pathwayC) synapsing with interneuronsD) detecting information from the environment
- How many people have decompensated alcohol-related cirrhosis?