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Nervous System
Neurons
Parts of the Brain
More Parts of the Brain
Brain Facts
100
This division of the nervous system is also known as the involuntary nervous system.
What is ANS or autonomic nervous system?
100
An electrical event in a neuron that occurs when a certain threshold is reached is called this.
What is an action potential?
100
It is apart of the diencephalon and functions as a relay center for all sensory information entering the brain (except for smell).
What is the thalamus?
100
This structure regulates coordination and balance.
What is the cerebellum?
100
________ forms a liquid cushion for CNS structures.
What is CSF?
200
The ___________ division of the peripheral nervous system transmits information from the skin to the CNS.
What is sensory or afferent?
200
True or False: The presence of the nodes of Ranvier speeds up the velocity of conduction along the axon.
True
200
This is the area that regulates body temperature, food intake, and sleep-wake cycle.
What is the hypothalamus?
200
The motor area of the cortex include the Primary Motor Cortex, Premotor Cortex, ______ Area, and the Frontal _____ Field.
Broca's; Eye
200
The ____________is a protective mechanism that helps maintain a stable environment for the brain.
What is blood brain barrier?
300
Clusters of cell bodies called ______ are in the CNS and are called __________ in the PNS.
What are nuclei and ganglia?
300
A _______ neuron is a rare type of sensory neuron that is found in special sensory structures like the retina of the eye.
What is bipolar?
300
This area coordinates head and eye movements when we visually follow a moving object.
What is the superior colliculi?
300
The area of the brain that is responsible for spatial discrimination is this.
What is primary somatosensory cortex?
300
These neurons are found within the forebrain areas such as the hippocampus, amygdala, and the cerebral cortex. Their functions include advanced cognitive functions and enable us to control our skeletal muscles.
What are pyramidal cells?
400
Bundles of axons are called nerves in the _____ and tracts in the ______.
What is CNS and PNS?
400
The number of processes extending from their cell body can classify neurons structurally. This is the most common neuron type in humans.
What are multipolar neurons?
400
Patients who can speak but produce nonsense have a lesion in _________.
What is Wernicke's area?
400
This part of the brain stem houses the reflex centers for respiration and cardiovasular functioning.
What is the medulla oblongata?
400
_________ is a division of labor in which each hemisphere has unique abilities not shared by its partner.
What is lateralization?
500
True or False: The CNS is the control center for ALL human activities.
False- Although the CNS is a great control center, it does NOT control everything. The endocrine system monitors some things, and certain processes are managed at the cellular level.
500
The ____________ in neurons represent rough ER and give some neurons in the CNS a gray color.
What are Nissl bodies?
500
Disorders of the _________ result in either too much or too little movement, as exemplified by Huntington's and Parkinson's Disease.
What is the basal nuclei (ganglia)?
500
This is known as the "emotional brain". It gives rise to strong emotions and feelings such as fear, anger, pleasure, and sorrow. It includes parts of the thalamus and hypothalamus as well as some areas of the cerebral hemispheres and basal ganglia (nuclei).
What is the limbic system?
500
All of the structures of the CNS originate from the __________.
What is neural tube?