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ATI Teas Nervous System Questions and Answers with Explanations (2026/2027)

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This document contains questions and verified answers for ATI Teas Nervous System . It includes detailed explanations, revision-focused content, and exam preparation material suitable for 2026/2027 students.

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ATI Teas Nervous System

-55mV - ANS-What is the *threshold* or the voltage in which *action potential* will occur?

-55mV - ANS-When sodium rushes into the cellular, what is the voltage?

-70mV - ANS-At *resting capacity*, what's a regular nerve cells voltage?

30mV - ANS-When potassium rushes out of the cellular, what's the voltage?

Acetylcholine - ANS-A neurotransmitter that allows studying and reminiscence and additionally
triggers muscle contraction

Acetylcholine - ANS-Neurotransmitter that *motor neurons* release to activate muscle motion

Afferent - ANS-Going to the vital anxious machine

Alzheimer's Disease - ANS-Caused through damaged neurons inside the cerebral cortex;
characterized by using memory loss, confusion, temper swings, and problems with language

Amyotrophic Lateral Sclerosis (ALS) - ANS-Caused by the dying of neurons that manipulate
voluntary muscle motion; characterised through muscle stiffness, twitches, and weakness

Anaxonic Neuron - ANS-Many dendrites however no axon
Retina, mind, and adrenal gland

Astrocytes - ANS-(CENTRAL NERVOUS SYSTEM) alternate of substances between neurons
and capillaries

Autonomic Nervous System - ANS-(apart of the Motor Nervous System) sends messages to
*CARDIAC* and *SMOOTH* muscle; involuntary

Axon Terminal - ANS-The endpoint of a neuron where neurotransmitters are stored

Axons - ANS-Transmitting facts; contains impulses away

Bipolar Neuron - ANS-a nerve cellular that has a unmarried dendrite at one stop and a
unmarried axon at the alternative cease

Cell Body (Soma) - ANS-The part of a neuron that coordinates information-processing
obligations and keeps the cellular alive; incorporates the nucleus

, Central Nervous System - ANS-Brain and spinal cord

Chemical Synapse - ANS-a kind of synapse at which a chemical (a neurotransmitter) is released
from the axon of a neuron into the synaptic cleft, where it binds to receptors on the following
shape (either some other neuron or an organ); *managed*, *slower*, *extra personal*

Chemically-Gated Channels - ANS-Open in presence of specific chemical substances at a
binding web site
Found on neuron cell body and dendrites

Dendrites - ANS-Branchlike elements of a neuron that are specialised to receive statistics in the
shape of neurotransmitters

Dopamine - ANS-Influences emotion, interest, makes you experience *splendid*, movement,
gaining knowledge of, emotion; precursor to epinephrine

Dopamine - ANS-Neurotransmitter associated with reward-motivated behavior

Efferent - ANS-Going far from the primary apprehensive gadget

Electrical Synapse - ANS-a kind of synapse in which the cells are related by means of gap
junctions, allowing ions (and therefore the movement capacity) to spread easily from cellular to
cell; *FASTER*

Encephalitis - ANS-Inflammation of the mind (infection viral/bacterial)

Ependymal Cells - ANS-(CENTRAL NERVOUS SYSTEM) Cheat, secrete, and flow into
cerebrospinal fluid

Epileptic Seizures - ANS-Brief episodes because of disturbed or overactive nerve mobile hobby
inside the mind; seizures variety widely in severity and can encompass confusion, convulsions,
and loss of consciousness; CAUSES INCLUDE: tumors, infections, head injuries, and medicinal
drugs

Epinephrine - ANS-Neurotransmitter secreted via the adrenal medulla in reaction to strain. Also
known as adrenaline.

Excitatory - ANS-Near motion ability (sodium)

GABA (gamma-aminobutyric acid) - ANS-Reduces interest of neurons; taken into consideration
because the inhibitory neurotransmitter

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