Saltatory conduction Samenvattingen, Aantekeningen en Examens

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 ...

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...

the document focuses on the nervous system, from its functions to explaining sympathetic and parasympathetic nervous system. the document also contains general structure and functions of the neurone. the documents also contains sensory, relay, motor neurones information. It also explains the knee-jerk reflex and the glial cells. The documents also has stages of action potential and comparison between myelinated and non-myelinated. the saltatory conduction is explained using diagram and stages in...

SPLH 620 Quiz #1 questions and answers with complete top solutions Dorsal (Superior) top of brain Ventral (Inferior) bottom of brain Anterior front of brain Posterior back of brain GABA primary inhibitory CNS neurotransmitter Axon Hillock location of action potential initiation Spatial Summation integration of synaptic input from dendrites and cell body areas Node of Ranvier area of axon between myelinated sections with many ion channels ...

MS Etiology CORRECT ANSWER-Interaction between genetic predisposition and an inciting environmental antigen, resulting in an autoimmune response in a susceptible host. Most common cause of disability in young and middle aged adults MS Pathophysiology CORRECT ANSWER-classically associated with MS is the slowing or stopping of saltatory conduction of action potentials along myelinated axons in the CNS because of demyelination There is some evidence that the pathophysiology is related inst...

Hondros Bio 253 Latest Version with Complete Solutions Layers of the skin epidermis, dermis, hypodermis Stratum Corneum Protective durable overcoat, waterproof, tough, relatively insensitive to biological, chemical and physical assault. Stratum Lucidum visible only in thick skin, few layers thick, dead clear cells Stratum Granulosum 3-5 layers of thick keratinocytes flastten out Stratum Spinosum overlies the stratum basale, cells come from the basale, filaments u the cells th...

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...

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 ...

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 ...

Smallest unit to product movement Correct Answer-motor unit Rate coding/Firing rate Correct Answer-frequency at which AP's are firing Axon hillock Correct Answer-where EPSPs summate to create AP Saltatory conduction Correct Answer-impulse jumps from node to node AP to MU is what kind of ratio? Correct Answer-1:1 Safety factor Correct Answer-3-5x more ACh released than needed to create an AP (overkill) SNARE proteins: definition and location Correct Answer-connect & allow vesic...

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 ...