Depolarization of neurons - Study guides, Class notes & Summaries

BIOD152 A&P 2 - Portage Learning Final Exam 100% Verified SOLUTIONS the neuron pictured below, is best described as multipolar true or false, explain why the state is false : Bipolar neurons have a central cell body with two extensions true List the phases of an action potential in order 1. resting potential 2. depolarization arizarion ng condition true or false , if false explain why the statement is false: the central nervous system consists of the brain and spinal cord true...

Psychopharm Exam 1 practice 170 Questions with Verified Answers The PMHNP is evaluating a 68-year-old man for symptoms of major depression. While assessing the appearance of the patient, an obvious left-sided ptosis is noted. Which cranial nerve is directly linked to this condition? a. III b. IV c. V d. VI - CORRECT ANSWER A A 55-year-old woman has been referred for a psychiatric evaluation for a change in personality, lack of impulse control, and increasingly reckless decision-making....

T or F: Potassium ions are at high concentrations inside of cells, including neurons - ANSWER-True The action potential is a result of: - ANSWER-the movement of ions The post-synaptic cell can be: - ANSWER-in glands, muscle cells and neurons Th resting potential of a neuron is - ANSWER--60mV T or F: The cell body refers to the part of the neurons that begin at the dendrites and extend to the axon terminal - ANSWER-false T or F: Voltage gated ion channels open when a protein binds ...

Portage Learning BIOD 152 A&P 2 Final Exam 2023/2024 Identify the parts of the neuron shown in the diagram below a. dendrite b. cell body c. nucleus List the four parts of the human brain The human brain is made up of the cerebral hemispheres, diencephalon, brain stem, andcerebellum. List and describe the 3 meninges of the human brain. The leathery dura mater is the double-layered outer meninx. The middle arachnoid meninx is a loose layer separated from the dura...

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...

Biol 335 Exam 2 Questions and Answers Already Passed - Which of the following sequences are in the correct order for a reflex arc? : Stimulus initiates the process, followed by activation of sensory neurons, transmission to interneurons, relay to motor neurons, and finally muscle contraction. - The resting potential of a membrane is more influenced by ______ due to ______. : Potassium ions affect it significantly because of their concentration and permeability. - Neurons with longer lengt...

DAANCE Exam Practice Questions with 100% Correct Answers | Verified | Latest Update Wave of Depolarization - CORRECT ANSWER an advancing wave of charge reversal as the nerve impulse advance a long the neuron Wakefullness system - CORRECT ANSWER consists of a central core in the brainstem with neurons that radiate to the cortex Vomiting Center - CORRECT ANSWER the center in the brainstem that induces vomiting Vital Centers - CORRECT ANSWER centers in the brainstem that control such ...

sodium potassium pump - ️️enzyme that transports 3 sodium to the outside, and it transports 2 potassium to the inside using the hydrolysis of ATP - creates more sodium outside and more potassium inside and creates a concentration gradient Midline, ipsilateral and contrelateral - ️️line separating left and right of the entire nervous system - ipsilateral means the same side of something and contralateral means the opposite side of something Nissl stain showed (Nissl) - ️️Nissl u...

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...

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 traps neurotransmitters, increasing their concentratio...