Postsynaptic neuron - Study guides, Class notes & Summaries

Reaching conclusions in psychological science requires - Answer the ability to test a theory ____ believed that the mind and body are made of different things, with the mind being made of immaterial or spiritual substance - Answer Descartes Today, most psychologists would agree with which statement concerning - Answer mental processes arise from brain functioning All scientific disciplines require: - Answer replicable observation Hector doesn't believe that mental processes can be s...

TWU BIOLOGY 242 Lab Midterm Prep (Definitions) Latest Update 100% Correct What is a cluster of axons referred to as? A. Nerve What is the outermost sheath covering the entire nerve? A. Epineurium Describe the physical characteristics of the Epineurium. A. It is a relatively thick layer of connective tissue that binds and supports the nerve. What is the term for the covering that wraps around a bundle of axons? A. Perineurium What surrounds each individual nerve fiber? ...

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....

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...

The ability of a postsynaptic neuron to respond to the presence of a particular neurotransmitter that is released from a neighboring presynaptic neuron is dependent on which of the following conditions? a. the storage of the neurotransmitter in the presynaptic neuron b. the ability of the neurotransmitter to penetrate the membrane of the postsynaptic neuron c. the presence of receptors on the postsynaptic neuron that have an affinity for that particular neurotransmitter d. whether or no...

Psychology 1101 - Chapter 2 (Neuroscience) 100% Correct The study of how the brain and nervous system affect mental processes and behavior. neuroscience Cells in the nervous system that transmit information. neurons Brain cells that provide important support functions for the neurons and are involved in the formation of myelin. glia cells A fatty, waxy substance that insulates portions of some neurons in the nervous system. myelin The part of the neuron that contains the nucle...

BIO 242 A Final Exam Questions and Answers Already Passed What defines the threshold of a neuron? a. The time between neurotransmitter binding and action potential firing. b. The voltage causing sodium ion inflow and reversal of resting potential. c. The total sodium ions entering before inactivation gates close. d. The neurotransmitter amount needed to trigger an action potential. e. The voltage across the resting cell membrane. c. The total number of sodium ions that enters the ce...

The area where neutrons receive most of their information - Contain receptors designed to pick up signals from other nerurons - these signals are interpreted in the Soma - Dendrites - Cell body - Contains nucleus - Takes all info from dendrites and puts it together in the Axonhillock - Soma Axon - A signal will be sent to the ______, a part of the neuron, if the signal is strong enough Axon potential - Signal Travels down the axon, covered in Myelin - Axon potential Insulatory material...

3 steps of how the nervous system functions 1. Sense organs receive info 2. Brain and spinal cord process this info 3. Brain and spinal cord issue commands to muscles and gland cells synaptic delay time from the arrival of a signal at the axon terminal of a presynaptic cell to the beginning of an action potential in the postsynaptic cell 2 main division of the nervous system and organs of each Central Nervous System (brain and spinal cord) Peripheral nervous system (nerves and gan...

PSU Bio 161 Test 3 Questions and Answers Already Passed 1. What is the function of a synapse? - a. to transmit electrical signals - b. to convert electrical signals into chemical signals - c. to store neurotransmitters - d. to regulate body temperature - Answer: b. to convert electrical signals into chemical signals Explanation: A synapse is the space between neurons where electrical signals are converted into chemical signals via neurotransmitters. 2. What is a neurotransmitt...