Saltatory conduction - Study guides, Revision notes & Summaries

1. Question: Describe the recent finds on the "Nature-Nurture Controversy." How do evolutionary theory (evolutionary biology and evolutionary psychology) and the study of genetics fit in to this discussion? What are the implications for the biopsychologist? And finally, is there a controversy at all? 2. Question: Describe the process of action potential conduction and neurotransmission from one neuron to another, both electrically (including saltatory conduction) and chemically. Describe how ...

ADVANCED PLACEMENT (AP) BIOLOGY: Nervous System 83 Questions Correctly Answered | 100% Rated Action potentials move down myelinated axons via saltatory conduction. This is because __________. Possible Answers: they jump from the middle of the gaps to the middle of the myelin sheaths additional impulses boost their speed periodically they jump from gap to gap in between the myelin sheaths they speed up dramatically in areas with more myelin wrapping, depending on the thickness of the sheath C...

EXPH 386 Exam 3 Questions And Answers (Updated And Verified) Neuromuscular system - answercoordination and integration of the muscles of the body together with the nerves that supply them cell body (soma) -peripheral - answerdictates the critical firing rate of the action potential. Larger cell bodies are associated with higher critical firing rates. Also contain the structures involved in replication and transmission of the genetic code Dendrites - answershort neural branches that *recei...

How Neurons Integrate Information- Through dendritic spines, a neuron can establish more than 50,000 connections to other neurons - Nerve impulses traveling from other neurons bombard the receiving neuron with all manner of inputs (excitatory and inhibitory) - The cell body, located between the dendritic tree and its axon, can receive inputs from many other neurons Saltatory ConductionMyelin and Node of Ranvier Node of RanvierPart of an axon that is not covered by myelin Tiny gaps in the myeli...

psych 115 midterm 1 UCLA Exam Questions and Answers 100% Pass What is the role of Dorsal root ganglion cells? • DRG = unipolar neurons in peripheral nervous system • Job is to relay somatosensory info from skin to spinal cord Describe a touch stimulus. • Touch to skin generates a receptor potential by opening mechanoreceptor Na channels • Receptor potential passively propagates (flows) to the integration zone • Receptor potential is attenuated (becomes smaller) as it propaga...

BIO 242 2023 Exam Questions with Correct Answers Saltatory conduction is made possible by _____. A) large nerve fibers B) the myelin sheath C) biphasic impulses D) erratic transmission of nerve impulses - ANSWER B) the myelin sheath Which part of the action potential occurs when the Na+ channels are inactivating and K+ channels open? A) depolarization B) repolarization C) resting state D) hyperpolarization - ANSWER B) repolarization Which type of ion channel opens in ...

Which of the following is not a function of astrocytes? - Answer-provide the defense for the CNS Which of the choices below describes the ANS? - Answer-motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? - Answer-ependymal cells The sheath of Schwann is also called the ________. - Answer-neurilemma Bipolar neurons are commonly ________. - Answer-...

BIOS 252 Final Exam Review Questions with Certified Solutions A selective destruction of substantia nigra pars compacta in midbrain leading to a lack of production of Dopamine leads to what disease process? What is seen in this disease? Parkinson's Disease, resting tremor, resistance in movement Continuous conduction happens in which type of neuron? Is this fast or slow conduction? Unmyelinated neurons, slow Describe the sliding contraction theory Acetylcholine NT is released from synapt...

EXPH 386 Exam 3 Questions And Answers (Updated And Verified) Neuromuscular system - answercoordination and integration of the muscles of the body together with the nerves that supply them cell body (soma) -peripheral - answerdictates the critical firing rate of the action potential. Larger cell bodies are associated with higher critical firing rates. Also contain the structures involved in replication and transmission of the genetic code Dendrites - answershort neural branches that *recei...

Lipid solubility determines the ___________ of a local anesthetic. - Answer Potency When using an aspirating syringe, the harpoon engages with what? - Answer Rubber stopper of the cartridge EMLA is a topical anesthetic that contains which of the following local anesthetic agents? - Answer 2.5% Lidocaine and 2.5% Prilocaine If the extracellular pH is acidic, as with an infection, there are insufficient free base local anesthetic molecules available to cross the nerve sheath to prov...