Saltatory conduction is - Study guides, Class notes & Summaries

Exam 1: BIOS 252 / BIOS252 (Latest 2024/ 2025 Update) Anatomy and Physiology II Exam Review| Questions and Verified Answers| 100% Correct| Grade A - Chamberlain Q: What is the name of the chemical that is secreted by the synaptic end bulb and is used to stimulate or inhibit another cell? A. Chemical receptors B. Meninges C. Neurotransmitters D. Saltatory conduction Answer: C. Neurotransmitters Q: Using stimulation like pressure or stretching to open a cell membran...

_____________ occurs when a cell is injured and the cell body swells and shifts its nucleus to the periphery. - Chromatolysis ________________ occurs when a cell is injured and the cell body swells and shifts its nucleus to the periphery. - Chromatolysis _________________ fibers are fibers that connect one hemisphere to another. - Commissural ____________________ conduction occurs when an impulse jumps from node to node on an axon. BE SURE TO SPELL CORRECTLY - saltatory __________________...

BIO 669 Quiz 2 Latest; (2024/2025) Questions and Answers 100% Correct.(33 Q & A) 1. When both Na+ and K+ are permeable at the same time (as in opening ion channels at the neuromuscular junction allowing both to cross), what will happen to the membrane potential? 1. Graded potentials are all of the following EXCEPT: 2. Movement of potassium down its electrochemical gradient will result in what effect on membrane potential? 3. The reticular formation is responsible for: 4. Damage to...

1. Which branching structures carry information toward the cell body of a neuron? a. Synapses b. Axons c. Dendrites d. Nodes of Ranvier ANS: C 2. What is the name of the enzyme that destroys acetylcholine? a. Dopamine b. ACh c. Acetylcholinesterase d. Norepinephrine ANS: C 3. What term describes the hopping of the action potential (nerve impulse) along the axon from one node (of Ranvier) to the next? a. Myelination b. Depolarization c. Saltatory conduction d. Repolarization ANS:...

Saltatory conduction is made possible by: the myelin sheath large nerve fibers diphasic impulses rapid conduction of local potentials nissil bodiesthe myelin sheath

EXPH 386 Exam 3 Latest Update Graded A+ neuromuscular system coordination and integration of the muscles of the body together with the nerves that supply them cell body (soma) -peripheral dictates 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 short neural branches that *receive* impulses through numerous connect...

Which of the following does NOT correctly match a term with its description? Depolarization --- Period during which sodium ions diffuse out of the neuron due to a change in permeability for these ions. Repolarization --- The interior of the cell becomes more negative due to the opening of potassium ion gates. Relative refractory period --- An exceptionally strong stimulus can trigger a response (action potential). Absolute refractory period --- Period during which the neuron cannot respond...

Saltatory conduction is made possible by _____. A) large nerve fibers B) the myelin sheath C) biphasic impulses D) erratic transmission of nerve impulsesB) 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) hyperpolarizationB) repolarization

The nervous system is composed of what two main classes of cells? What are they? correct answersNeurons and glial cells -- neurons = the basic signaling units that transmit information through the nervous system -- glial cells = non neural cells that provide structural support and electrical insulation to neurons. Glia are involved in metabolic functions, repair and protection of neurons, and improve conduction of signals What does presynaptic and postsynaptic mean? correct answersMost ...

m   1. Which of the following is the mRNA start codon in most cases? A. UAA B. AGU C. AUG D. UGA 2. Which of the types of RNA is the smallest? A. mRNA B. tRNA C. rRNA D. 3. Which of the following is not considered a pyrimidine? A. C B. T C. U D. G 4. Which of the following is paired correctly? A. A-G B. C-G C. A-U D. G-T 5. Which of the following characterizes a Western blot? A. Antibody/protein hybridization B. DNA/RNA combination C. RNA ...