Nervous System Overview Quiz

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What does histology study?

Cells on a microscopic level (correct)

The behavior of living organisms

Tissues of multicellular organisms

The structure of large organs

Which type of neuron has a single axon and multiple dendrites?

Multipolar (correct)

Unipolar

Bipolar

Tripolar

What is the primary function of dendrites in neurons?

To conduct electrical impulses

To store genetic material

To receive signals from other neurons (correct)

To protect the neuron from damage

Which neuron type has one axon and one dendrite extending from the cell body?

Bipolar Signup and view all the answers

What is the role of neuroglial cells in the nervous system?

To support and protect neurons Signup and view all the answers

What is the primary function of the sensory division of the nervous system?

To convert stimuli into nerve impulses Signup and view all the answers

Which of the following accurately describes the somatic nervous system?

Controls skeletal muscles with voluntary control Signup and view all the answers

Why is nerve damage considered more problematic than damage to muscles or skin?

Nerve damage is harder to repair due to complex structures Signup and view all the answers

Which system is responsible for involuntary control of effectors like the heart?

Autonomic Nervous System Signup and view all the answers

What are the two main categories of the nervous system?

Somatic and autonomic Signup and view all the answers

What structures make up the Central Nervous System (CNS)?

Brain and spinal cord Signup and view all the answers

Which division of the Peripheral Nervous System is responsible for voluntary movements?

Somatic nervous system Signup and view all the answers

What sensation is primarily caused by hitting your 'funny bone'?

Stimulation of peripheral nerves Signup and view all the answers

What function does the sympathetic nervous system serve?

Responding to stressful situations Signup and view all the answers

Which part of the nervous system can be affected when someone can't move?

Both the Central and Peripheral Nervous Systems Signup and view all the answers

Which system is responsible for involuntary functions?

Autonomic nervous system Signup and view all the answers

What does the term 'peripheral' refer to in the context of the nervous system?

Branches extending from the CNS Signup and view all the answers

Which function is associated with the parasympathetic nervous system?

Rest and digest Signup and view all the answers

What is the primary function of the spinal cord?

Serve as a center for spinal reflexes Signup and view all the answers

Which of the following layers is the most superficial layer of the meninges?

Dura mater Signup and view all the answers

What connects the two cerebral hemispheres?

Corpus callosum Signup and view all the answers

Which structure is responsible for nourishing brain cells?

Pia mater Signup and view all the answers

Which term refers to a bundle of nervous tissue connecting the cerebrum to the spinal cord?

Tract Signup and view all the answers

What are the two major functions of the spinal cord?

Conducts nerve impulses and serves as a center for spinal reflexes. Signup and view all the answers

What primarily composes gray matter in the brain and spinal cord?

Nerve cell bodies and branching dendrites. Signup and view all the answers

Which statement correctly describes white matter?

It mainly consists of nerve fibers. Signup and view all the answers

What is the primary role of sensory nerves?

To conduct impulses to the brain. Signup and view all the answers

Which category do most nerves fall under in terms of function?

Nerves that include both sensory and motor fibers. Signup and view all the answers

What is the primary function of astrocytes in the nervous system?

Support neurons and blood vessels Signup and view all the answers

What type of neuroglia is responsible for forming myelin sheaths in the central nervous system?

Oligodendrocytes Signup and view all the answers

What is the appearance of myelinated axons in the central nervous system?

They form white matter Signup and view all the answers

Which neuroglial cells are involved in the process of removing debris in the nervous system?

Microglia Signup and view all the answers

How do unipolar and bipolar neurons differ in terms of structure and function?

Unipolar neurons allow for smaller functions with less branching Signup and view all the answers