BIOS 231 Final Exam Questions and Answers
BIOS 231 Final Exam Questions and Answers
| Q.1) | ATP is converted into cAMP by which enzyme? | |||||
| Q.2) | According to Ohms law, if the voltage increases, the current decreases. | |
| Q.3) | Afferent fibers are fibers that transmit impulses from the receptors to the CNS. | |||||
| Q.4) | These cells cushion the brain | |
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| Q.5) | Exocytosis is the process in which | |||||
| Q.6) | Threshold of a neuron is reached at how many millivolts? | |
| Q.7) | Glands are innervated by the somatic motor system. | |||||
| Q.8) | Saltatory conduction also occurs in post-synaptic fibers. | |
| Q.9) | Typically, what is the charge of a neuron at rest? | |||||
| Q.10) | The autonomic nervous system is responsible for maintaining the constancy of the body’s internal environment (homeostasis). | |
| Q.11) | These cells form the myelin sheath in the CNS. | |||||
| Q.12) | “J” REPRESENTS THE _____________ | |
| Q.13) | The sympathetic division conserves energy and promotes nonemergency functions. | |||||
| Q.14) | ______ and ______ causes depolarization of the post synaptic membrane. (neurotransmitter and ion) (check all that apply) | |
| Q.15) | Most multipolar neurons are ____________ | |||||
| Q.16) | Post ganglionic fibers of the autonomic system are non myelinated. | |
| Q.17) | WHICH LETTER REPRESENTS THE AXON HILLOCK? | |||||
| Q.18) | What happens during repolarization? (check all that apply) | |
| Q.19) | The gaps between schwann cells are called _________ | |||||
| Q.20) | FORMS THE MYELIN SHEATH IN THE PNS | |
| Q.21) | According to Ohms law, if voltage increases, resistance decreases. | |||||
| Q.22) | Which type of post synaptic potential causes hyperpolarization. | |
| Q.23) | Sympathetic neurons have long pre-ganglionic fibers and short post-ganglionic fibers. | |||||
| Q.24) | The opening of Ca 2+ channels in the axon results in what? | |
| Q.25) | Releasing acetylcholine tends to excite an organ | |||||
| Q.26) | The white blood cells of the CNS | |
| Q.27) | “C” REPRESENTS THE ___________ | |||||
| Q.28) | The greater the gradient of ions, the greater potential to do work | |
| The cAMP second messenger system is an important regulatory of cellular energy during _________ | ||||||||
| Q.30) | Which is true about the sodium potassium pump? | |||||||
| Q.31) | Somatic motor neurons also innervate glandular tissue. | ||||||||
| Q.32) | WHICH LETTER REPRESENTS THE DENDRITES? | |
| Incorrect |
| Q.33) | The synapse of a neuron is where synaptic vesicles are stored. | |||||
| Q.34) | ____________ is the neurotransmitter that causes a muscle to contract/depolorize. | |
| Q.35) | The peripheral nervous system consists of the brain and spinal cord. | |||||
| Q.36) | Skeletal muscles are innervated by neurons in the motor division. | |
| Q.37) | Temporal summation is the summing of several different pre-synaptic neurons. | |||||
| Q.38) | A ganglion is the site where the pre-synaptic neuron synapse with the post-synaptic neuron releasing acetylcholine. | |
| Q.39) | Pre-synaptic neurons always secrete acetylcholine. | |||||
| Q.40) | In the peripheral nervous system, the myelin sheath is formed by the ologodendrocytes. | |
| Correct | |||||||||
| Q.42) | SYNAPTIC VESICLES ARE STORED HERE. | |
| Q.43) | The G protein stimulates adenylyl cyclase | |||||||||
| Q.44) | What happens during an action potential? | |||||||||
| .45) | Which structure in the neuron generates the action potential? | |||||
BIOS 231 Final Exam Questions and Answers