Nervous System Fundamentals Quiz

<p>Autonomic nervous system (C)</p> Signup and view all the answers

<p>Sympathetic division (B)</p> Signup and view all the answers

<p>Visceral sensory fibers (C)</p> Signup and view all the answers

<p>Efferent carries motor commands from CNS to PNS while afferent carries sensory information to CNS (B)</p> Signup and view all the answers

<p>It includes both sympathetic and parasympathetic divisions (B)</p> Signup and view all the answers

<p>Nucleus and nucleolus (D)</p> Signup and view all the answers

<p>Produce neurotransmitters (B)</p> Signup and view all the answers

<p>Dendrites engage in afferent communication by receiving signals from other neurons. (C)</p> Signup and view all the answers

<p>Maintain the cell's shape and support dendrites and axon (D)</p> Signup and view all the answers

<p>Store and release neurotransmitters (A)</p> Signup and view all the answers

<p>It integrates and processes sensory data and motor commands. (B)</p> Signup and view all the answers

<p>The axon transmits impulses away from the cell body while dendrites receive signals. (A)</p> Signup and view all the answers

<p>Unmyelinated nerve fibers and neuron cell bodies. (A)</p> Signup and view all the answers

<p>Chemical messengers known as neurotransmitters are released. (A)</p> Signup and view all the answers

<p>They produce energy required for various neuronal functions. (D)</p> Signup and view all the answers

<p>Produce hormones for metabolic regulation. (D)</p> Signup and view all the answers

<p>Peripheral nerves and sensory receptors. (C)</p> Signup and view all the answers

<p>Structure and function. (A)</p> Signup and view all the answers

<p>Distribution of gray and white matter. (C)</p> Signup and view all the answers

<p>Support and protect neurons. (A)</p> Signup and view all the answers

<p>Neurons. (D)</p> Signup and view all the answers

<p>Integration. (C)</p> Signup and view all the answers

<p>They transmit information back to the CNS. (C)</p> Signup and view all the answers

<p>Astrocytes (C)</p> Signup and view all the answers

<p>Form myelin sheath around peripheral nerve axons (A)</p> Signup and view all the answers

<p>Each oligodendrocyte wraps around many nerve fibers. (C)</p> Signup and view all the answers

<p>Microglia (D)</p> Signup and view all the answers

<p>Saltatory conduction of action potential (A)</p> Signup and view all the answers

<p>Peripheral Nervous System (D)</p> Signup and view all the answers

<p>Producing and circulating cerebrospinal fluid (D)</p> Signup and view all the answers

<p>They regulate the environment around neuronal cell bodies. (C)</p> Signup and view all the answers

<p>Schwann cells support nerve regeneration in the PNS. (A)</p> Signup and view all the answers

<p>Serotonin (A)</p> Signup and view all the answers

<p>It is covered by a myelin sheath in the CNS. (B)</p> Signup and view all the answers

<p>Neurilemma (A)</p> Signup and view all the answers

<p>Sympathetic division (B)</p> Signup and view all the answers

<p>Conducting action potentials (A)</p> Signup and view all the answers

The nervous system receives information from internal and external sources, processes it, communicates the information, and then responds.

Part of nervous system including brain and spinal cord; processes information.

Part of nervous system that receives input, sends output to and from the CNS.

Made up of neural tissue, connective tissue, and blood vessels.

Processes sensory input, controls motor output, and is responsible for higher functions.

The main structural component of the nervous system, consisting of neurons and neuroglia

Cells responsible for transmitting information.

Cells that support and nourish neurons.

Information received from the environment and within the body.

Commands sent to the body in response to processed information.

The central part of a neuron, containing the nucleus and other organelles.

Branching extensions of a neuron that receive signals from other neurons.

All neural tissue outside the central nervous system (CNS), including peripheral nerves and ganglia.

Carries sensory information from the peripheral nervous system (PNS) to the central nervous system (CNS).

A long, slender projection of a neuron that transmits signals to other neurons or cells.

Chemical messengers that transmit signals across the synapse between neurons.

Carries motor commands from the CNS to the PNS, controlling muscles and glands.

Part of the efferent division, controlling voluntary and involuntary (reflexes) skeletal muscle contractions.

The junction between two neurons where signals are transmitted.

Dense areas of Rough Endoplasmic Reticulum (RER) with ribosomes that produce neurotransmitters.

Part of the efferent division controlling involuntary actions (smooth and cardiac muscles, glands).

The cytoplasm of the neuron's cell body.

Part of the ANS, stimulating reactions (fight or flight).

Bundles of protein filaments that provide support for dendrites and axons.

Part the ANS, relaxing reactions (rest and digest).

Consists of supporting cells (neuroglia) and neurons that process and transmit nerve signals.

The cone-shaped region where the axon arises from the cell body, where nerve impulses are initiated.

A fatty covering that insulates axons, increasing the speed of nerve impulse transmission.

Gaps in the myelin sheath along the axon, where nerve impulses jump.

Star-shaped neuroglial cells found in the CNS, providing structural support, maintaining the blood-brain barrier, and regulating neurotransmitters.

Neuroglial cells lining the cavities of the brain and spinal cord, responsible for producing and circulating cerebrospinal fluid.

Neuroglial cells in the CNS that wrap around axons, forming the myelin sheath.

Neuroglial cells that surround neuron cell bodies in the PNS, providing support and protection.

Neuroglial cells in the PNS responsible for forming the myelin sheath around axons in the PNS.

The outermost layer of a Schwann cell that surrounds the myelin sheath, important for axon regeneration.

Myelin's primary function is to protect and insulate axons, increasing the speed of nerve impulse transmission.

Schwann cells form myelin sheaths around single axons in the PNS and have neurilemmal coverings, while Oligodendrocytes wrap myelin around multiple axons in the CNS and lack neurilemmal coverings.