Axon hillock - Study guides, Class notes & Summaries

Central Nervous System -Correct Answer "general" of the body; integration of sensory input and origin of motor responses • brain • spinal cord Peripheral Nervous System -Correct Answer body; sensory input and motor output • nerves • sensory receptors • motor neurons sensory receptors -Correct Answer Afferent neurons → Admit signals differentiated based on location • somatic • visceral somatic sensory receptors -Correct Answer receptors and neurons that ar...

Human Physiology Exam 2 Ch.8 Test Bank || With 100% Correct Solutions Human Physiology Exam 2 Ch.8 Test Bank || With 100% Correct Solutions In general, the nervous system is composed of which two types of cells? 1. motor 2. neurons 3. sensory 4. glial 5. associative - ANSWER - 2 and 4 The cell body of neurons is generally A) 90% of the cell volume. B) 50% of the cell volume. C) 10% of the cell volume. D) found in the same position on every neuron. - ANSWER - C) 10% of the cell vo...

Test Bank to accompany Neuroscience, Sixth Edition Purves • Augustine • Fitzpatrick • Hall • LaMantia • Mooney • Platt • White Chapter 1: Studying the Nervous System Multiple Choice 1. Which part of DNA is transcribed into messenger RNA? a. Exon b. Intron c. Promoter d. Non-coding DNA e. Regulatory DNA Answer: a Textbook Reference: Genetics and Genomics Bloom’s Level: 2. Understanding 2. Genomics is the analysis of a. coding DNA sequences for a species. b. regulatory DNA sequence...

NSC FINAL EXAM 2024 WITH 100% ACCURATE SOLUTIONS how do neurons communicate? who was right? - correct answer golgi- the reticular theory neurons are continuous cajal- neuron doctorine neurons are not continuous CAJAL was right axon hillock - correct answer initial segment of the axon where axon and soma attach pathway of neuron signaling - correct answer dendrite->axon hillock->axon->axon terminal soma - correct answer cell body houses nucleus and organelles d...

NSC final exam questions & answers 2024/2025 how do neurons communicate? who was right? - ANSWERSgolgi- the reticular theory neurons are continuous cajal- neuron doctorine neurons are not continuous CAJAL was right axon hillock - ANSWERSinitial segment of the axon where axon and soma attach pathway of neuron signaling - ANSWERSdendrite->axon hillock->axon->axon terminal soma - ANSWERScell body houses nucleus and organelles dendrites - ANSWERSextensions of soma ...

What are the 3 components of the neuron? Ans: cell body (soma), dendrites, axons where is the cell body (soma) located? Ans: mainly in the CNS Densely packed cell bodies in the CNS are? PNS? Ans: nuclei. ganglia. What is located in the cell body (soma)? Ans: nucleus and cytoplasm. Dendrites are the ________ portion of the neuron. Ans: Receptive portion. They accept and sense external stimuli. Stimulate incoming signals to cell body. Axons transmit impulses where? Ans: Transmit imp...

HUBS 191 Progress Test II Latest Version Graded A Nervous system cells neurons and glia Neuron input zone dendrites and cell body Neuron summation zone axon hillock Neuron conduction zone axon Neuron output zone axon terminals Axon hillock decides whether to pass on information Tract axon bundles in CNS Grey matter cell bodies in CNS White matter myelinated axons in CNS; commissural, projection, and association tracts Ganglion groups of cell bodies in PNS Nerv...

Biology 255 Exam 3 Study Guide (Human Anatomy) Questions And Answers (Verified And Updated) Central nervous system structures Brain and spinal cord Nervous system general functions Collect information, process and evaluate information, and initiate response to information Peripheral nervous system structures Cranial nerves, spinal nerves, and ganglia Sensory (afferent) nervous system Detects stimuli (receives sensory input/information from receptors) and transmits information...

NSC 3361 Exam 1 Questions and Answers All Correct Sequence of transmission at chemical synapse - Answer-1. Action potential travels down axon to axon terminal. 2. Voltage-gated calcium channels open and Ca2+ enters. 3. Synaptic vesicles fuse with membrane and release transmitter into the cleft. 4. Transmitter binds to post-synaptic receptor, causing EPSP or IPSP. 5. May bind to the presynaptic autoreceptors, decreasing release. 6. Neurotransmitter is inactivated by degradation or reuptak...

When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - ANSWER TRUE Briefly explain why the action potential flows only from the axon hillock to the terminal web. - ANSWER During the course of an action potential there is a refractory period that makes sure the action potential can't trigger backwards by the use of caps on gated sodium channels. The caps close and keeps the action potential flowing in one direction. How do the glial cells (i.e., m...