Components and Cells
A single specialized cell that transmits nerve impulses.
What is a Neuron?
The main control center, protected by the skull.
What is the Brain?
This system includes the brain and the spinal cord.
What is the Central Nervous System (CNS)?
This part of the brainstem regulates vital involuntary functions like breathing and heart rate.
What is the Medulla Oblongata?
The three protective layers that cover the brain and spinal cord.
What are the Meninges?
Bundles of axons outside the CNS.
What are Nerves?
The largest part of the brain, responsible for thought and memory.
What is the Cerebrum?
The system responsible for voluntary movement of skeletal muscles.
What is the Somatic Nervous System?
This part acts as a major relay center for sensory impulses (except smell).
What is the Thalamus?
The clear fluid that circulates within the CNS for cushioning and nourishment.
What is Cerebrospinal Fluid (CSF)?
The body's control and communication network overall.
What is the Nervous System?
The area that coordinates balance, posture, and fine motor skills.
What is the Cerebellum?
The system that controls the internal organs and glands involuntarily.
What is the Autonomic Nervous System (ANS)?
This structure controls basic urges like hunger, thirst, and body temperature.
What is the Hypothalamus?
The cavities deep within the brain where CSF is produced.
What are the Ventricles?
The connection of the brain to the PNS, running down the vertebral column.
What is the Spinal Cord?
The division of the Autonomic System known as "rest-and-digest."
What is the Parasympathetic division?
The upper-most part of the brainstem, involved in vision and hearing reflexes.
What is the Midbrain?
The entire Central Nervous System (CNS) is comprised of these two structures.
What are the Brain and Spinal Cord?
The two functional systems that make up the Autonomic Nervous System.
What are the Sympathetic and Parasympathetic divisions?
The entire Diencephalon is comprised of these two structures.
What are the Thalamus and Hypothalamus?