Axons and dendrites - Study guides, Class notes & Summaries

CRANIAL NERVES Similarities Between Spinal Nerves & Cranial Nerves: Cranial Nerves develop similar to Spinal Nerves, & hence have a similar structural Organisation:  Sensory Cranial Nerves: Similar to Afferent Spinal Nerves – Sensory Cranial Nerves’ Dendrites are associated with peripheral sensory receptors & their Cell Bodies are located in a Sensory Ganglia (Similar to the Dorsal Root Ganglion in the spinal cord). Their axons then terminate in the Sensory Nuclei of the Bra...

Astrocytes - ️️glial, maintain ionic environment Lumbar - ️️hips and legs Tetrodoxin (TTX) - ️️- found in puffer fish ovaries - one could kill 30 adult humans - causes death via paralysis of respiratory muscles - fish has TTX resistant Na channels - irreversibly blocks channel Dermatomes - ️️spinal nerves innervate sections of the skin, message from certain section of skin is sent to certain section of spine - skin corresponds to spin 1. cervical 2. thoracic 3. lumbar...

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...

OCCTH 583 Midterm Latest Update Graded A+ Dendrites Branchlike parts of a neuron that are specialized to receive information Cell Body / Soma The part of the neuron that contains the nucleus, which processes and integrates information Axon A threadlike extension of a neuron that carries nerve impulses away from the cell body A bundle of axons makes up a ___ Nerve Axon Collaterals Branches of the axon that allow one neuron to pass the signal to multiple effectors Where is t...

1. Which glial are responsible for maintaining the integrity of the extracellular fluid that surrounds neurons? A) Oligodendrocytes B) Astrocytes C) Microglial cells D) Stellate cells - B) Astrocytes 2. At what point do the sensory axons from the periphery enter the spinal cord? A) Central nuclei B) Ventral nuclei C) Dorsal root ganglia D) Ventral white matter - C) Dorsal root ganglia 3. Some neurons have long axons that stretch from one part of the CNS to another. What are these c...

Accesories of the Afferent Division of the Nervous system Correct Answer-1. Receptors - detects stimuli 2. Sensory neurons - relays sensory information towards the CNS *receives input from dendrites, uses axon to send it to CNS* 3. Sensory pathways - nerves, nuclei, and tracts that deliver sensory information to the CNS Accesories of the Efferent Division of the Nervous system Correct Answer-1. Nuclei - contain cell bodies of motor neurons 2. Motor neurons - send commands to effect...

UDAP DCF EXAM WITH GUARANTEED ACCURATE ANSWERS |VERIFIED What is formed when axons and dendrites form a connection? - ACCURATE ANSWERSynapse What are three challenges impacting early childhood practices? - ACCURATE ANSWER1. Addressing differences in school success and achievement 2. Integrating and aligning preschool and elementary school programming 3. Improving teacher preparation, professional development and ongoing support What does DAP stand for? - ACCURATE ANSWERDevelopmentally A...

Afferent Division - ️️approaches CNS; carries sensory info; from PNS sensory receptors to CNS Neurons - ️️the basic functional units of the nervous system; cells that send and receive signals Peripheral Nervous System - ️️includes all neural tissue outside the CNS; delivers sensory info to the CNS and carry motor commands from the CNS to peripheral tissues and systems The Nervous System - ️️made of neurons and neuroglia cells; includes all neural tissue in the body Neuro...

OCCTH 585 Neuro Questions and Answers Already Passed Information flows through neurons from ____ to ____ in the neuron dendrite; axon _____ bring a cell to threshold while _____ bring a cell further from threshold EPSPs; IPSPs What 3 main things is neuroplasticity capable of? - changing the properties of neurotransmission - changes in cell properties - structural/ anatomical changes of cells How does neuroplasticity change the properties of neurotransmission? (2) - change in tra...

USABO OPEN EXAM 2024 WITH 100% CORRECT ANSWERS Why is myelin important in the nervous system? A. It allows signals to travel faster along axons because depolarization occurs only at myelinated locations. B. It allows signals to travel faster along axons because depolarization occurs only at nonmyelinated locations. C. It bundles the dendrites of adjacent neurons together. D. It increases capacitance across the cell membrane, which helps electrical signals to leave the axons. E. It tr...