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A&P CH-11
FINAL
| Question | Answer |
|---|---|
| WHICH NEURON WOULD CONNECT TO A MUSCLE | |
| WHICH NEURON WOULD BE FOUND IN THE RETINA OF THE EYE | |
| WHICH NEURON IS A SENSORY NEURON FOUND IN A REFLEX ARC | |
| WHICH NEURON IS NEVER MYELINATED | |
| WHICH NEURON IS RARE | |
| IN A REFLEX ARC WHICH NEURON HAS ITS CELL BODY INSIDE THE SPINAL CORD | |
| WHICH NEURON IS COMMON ONLY IN DORSAL ROOT GANGLIA OF THE SPINAL CORD AND SENSORY GANGLIA OF THE CRANIAL NERVES | |
| WHICH IS BY FAR THE MOST COMMON NEURON TYPE | |
| THE NEURON CANNOT RESPOND TO A SECOND STIMULUS, NO MATTER HOW STRONG | ABSOLUTE REFRACTORY PERIOD |
| THE INTERIOR OF THE CELL BECOMES LESS NEGATIVE DUE TO AN INFLUX OF SODIUM IONS | DEPOLARIZATION |
| THE SPECIFIC PERIOD DURING WHICH POTASSIUM IONS DIFFUSE OUT OF THE NEURON DUE TO A CHANGE IN MEMBRANE PERMEABILITY | REPOLARIZATION |
| ALSO CALLED A NERVE IMPULSE TRANSMITTED BY AXONS | ACTION POTENTIAL |
| AN EXCEPTIONALLY STRONG STIMULUS CAN TRIGGER RESPONSE | RELATIVE REFRACTORY PERIOD |
| SALTATORY CONDUCTION IS MADE POSSIBLE BY | THE MYELIN SHEATH |
| WHICH OF THE FOLLOWING IS NOT A CHEMICAL CLASS OF NEUROTRANSMITTERS | NUCLEIC ACID |
| IS THIS STATEMENT TRUE OF FALSE: A NERVE IMPULSE OCCURS IF THE EXCITATORY AND INHIBITORY EFFECTS ARE EQUAL | FALSE |
| IS THIS STATEMENT TRUE OR FALSE: THE SYNAPTIC CLEFT PREVENTS AN IMPULSE FROM BEING TRANSMITTED DIRECTLY FROM ONE NEURON TO ANOTHER | TRUE |
| EPENDYMAL CELLS | HELP TO CIRCULATE THE CEREBROSPINAL FLUID |
| NEUROGLIA THAT CONTROL THE CHEMICAL ENVIROMENT AROUND NEURONS BY BUFFERING POTASSIUM AND RECAPTURING NEUROTRANSMITTERS ARE | ASTROCYTES |
| SCHWANN CELLS ARE FUNCTIONALLY SIMILIAR TO | OLIGODENDROCYTES |
| IMMEDIATELY AFTER AN ACTION POTENTIAL HAS PEAKED WHICH CELLULAR GATES OPEN | POTASSIUM |
| NERVE CELL ADHESION MOLECULES (N-CAMs) | ARE CRUCIAL FOR THE DEVELOPMENT OF NEURAL CONNECTIONS |
| AN INHIBITORY POSTSYNAPTIC POTENTIAL (IPSP) IS ASSOCIATED WITH | HYPERPOLORIZATION |
| WHAT OCCURS WHEN AN EXCITATORY POSTSYNAPTIC POTENTIAL (EPSP) IN BEING GENERATED ON THE DENDRITIC MEMBRANE | A SINGLE TYPE OF CHANNEL WILL OPEN, PERMITTING SIMULTANEOUS FLOW OF SODIUM AND POTASSIUM |
| WHEN A SENSORY NEURON IS EXCITED BY SOME FORM OF ENERGY, THE RESULTING GRADED POTENTIAL IS CALLED | GENERATOR POTENTIAL |
| TRUE OR FALSE: GRADED POTENTIALS INCREASE AMPLITUDE AS THEY MOVE AWAY FROM THE STIMULUS POINT | FALSE |
| TRUE OR FALSE: SOME IONS ARE PREVENTED FROM MOVING DOWN THEIR CONCENTRATION GRADIENTS BY ATP-DRIVEN PUMPS | TRUE |
| A SECOND NERVE IMPULSE CANNOT BE GENERATED UNTIL | THE MEMBRANE POTENTIAL HAS BEEN RE-ESTABLISHED |
| IN WHAT WAY DOES THE INTERIOR SURFACE OF A CELL MEMBRANE OF A RESTING (NONCONDUCTING) NEURON DIFFER FROM THE EXTERNAL ENVIROMENT? THE INTERIOR IS? | NEGATIVELY CHARGED AND CONTAINS LESS SODIUM |
| IF A MOTOR NEURON IN THE BODY WERE STIMULATED BY AN ELECTRODE PLACED ABOUT MIDPOINT ALONG THE LENGTH OF THE AXON | THE IMPULSE WOULD SPREAD BIDIRECTIONALLY |
| NEURONS MAY BE CLASSIFIED ACCORDING TO SEVERAL CHARACTERISTICS. SUCH AS | GROUP C FIBERS ARE NOT CAPABLE OF SALTATORY CONDUCTION |
| TRUE OR FALSE: SPINAL REFLEXES ARE AN EXAMPLE OF SERIAL PROCESSING | TRUE |
| THE PART OF THE NERVOUS SYSTEM THAT IS VOLUNTARY AND CONDUCTS IMPULSES FROM CNS TO THE SKELETAL MUSCLES IS THE __________ NERVOUS SYSTEM | SOMATIC N.S. |
| _________ ARE FOUND IN THE CENTRAL NERVOUS SYSTEM AND BIND AXONS AND BLOOD VESSELS TO EACH OTHER | ASTROCYTES |
| A GAP BETWEEN SCHWANN CELLS IN THE PERIPHERAL SYSTEM IS CALLED | NODE OF RANVIER |
| WHAT MECHANISM IS RESPONSIBLE FOR AXONAL TRANSPORT | ATP DEPENDANT MOTOR PROTEINS: KINOSIN, DYNEIN, MYOSIN |
| THE SYNAPSE MORE COMMON IN EMBRYONIC NERVOUS TISSUE THAN IN ADULTS IS THE | ELECTRICAL SYNAPSE |
| WHEN INFORMATION IS DELIVERED WITHIN THE CNS SIMULTANEOUSLY BY DIFFERENT PARTS OF THE NEURAL PATHWAY, THE PROCESS IS CALLED______ PROCESSING | PARALLEL PROCESSING |
| ________POTENTIALS ARE SHORT LIVED LOCAL CHANGES IN MEMBRANE POTENTIAL THAT CAN BE EITHER DEPOLARIZED OR HYPERPOLARIZED | GRADED |
| _______ IS A DISEASE THAT GRADUALLY DESTROYS THE MYELIN SHEATHS OF NEURONS IN THE CNS, PARTICULARLY IN YOUNG ADULTS | MULTIPLE SCLEROSIS |
| WHEN ONE OR MORE PRESYNAPTIC NEURONS FIRE IN RAPID ORDER IT PRODUCES A MUCH GREATER DEPOLORIZATION OF THE POSTSYNAPTIC MEMBRANE THAN WOULD RESULT FROM A SINGLE EPSP; THIS EVENT IS CALLED ______SUMMATION | TEMPORAL SUMMATION |
| WHAT IS THE ROLE OF MICROGALIAL CELLS AND WHY ARE THEY SO IMPORTANT TO CNS | W/INVADING MICROBES MICROGLIAL CELLS BECOME MACROPHANGES 2 PHAGOCYTOSIZE THE MIBROLES(sp)& NEURO DEBRIS. THIS PROTECTIVE ROLE IS IMPNT BCAUSE CELLS OF IMMUNE SYS R.DENIED ACROSS THE CNS.(PHAGOCYTOSIZE DEAD CELL DEBRIS &PROTECT YOUR CNS FROM MICROORGANISMS |
| DEFINE NEUROTRANSMITTER | CHEMICAL MESSENGER RELEASED BY NEURONS THAT MAY UPON BINDING TO RECEPTORS OF NEURONS OR EFFECTOR CELLS STIMULATE OR INHIBIT THOSE NEURONS OR EFFECTOR CELLS. |
| NAME TWO AMINO ACID TRANSMITTERS, | GABA & GLYCINE |
| NAME TWO CATECHOLAMINES | DOPAMINE & NOREPINEPHRINE |
| NAME TWO PEPTIDES | ENDORPHINE & DYNORPHIN |
| WHAT FUNCTION IS SERVED BY THE INCREASED AXON DIAMETER AT THE NODES OF RANVIER | INCREASED DIAMETER INCREASED SPEED OF IMPULSE PROPAGATION DUE TO INCREASED SURFACE AREA ON THE MEMBRANE FOR SODIUM CHANNELS |
| WHAT ARE THE BASIC DIVISIONS OF THE PERIPHERAL NERVOUS SYSTEM | SENSORY AND MOTOR 2 DIVISIONS OF MOTOR = SOMATIC AND AUTONOMIC 2 DIVISIONS OF AUTONOMIC = SYMPATHETIC & PARASYMPATHETIC CRANIAL AND SPINAL |
Created by:
TRESCEE