Mind Games
Which organs are part of the central nervous system?
Brain and Spinal Cord
The soma, dendrites, axon and axon terminal are part of this structure.
Neuron
The fundamental unit of neural communication.
neuron
Cells that provide essential support and maintenance functions for neurons.
Glial cells
This system controls voluntary movements and transmits sensory information from the body to the CNS.
Somatic Nervous System
A cylindrical bundle of nerves extending from the brainstem to the lumbar region of the spine, serving as a conduit for transmitting sensory information to the brain and coordinating motor responses.
spinal cord
Junction between two neurons where communication occurs.
synapse
Fight-or-flight response.
Sympathetic Nervous System
Increases heart rate and dilates pupils, bronchodilation (opening of the airways), inhibition of digestion, and release of glucose from the liver to provide energy for the muscles.
Sympathetic Nervous System
System that regulates involuntary bodily functions such as heart rate, digestion, respiratory rate, and glandular secretions.
Autonomic Nervous System
The Autonomic Nervous System is divided into these two systems.
Sympathetic
Parasympathetic
The largest part of the brain responsible for higher cognitive functions such as thinking memory language and voluntary movement.
Cerebrum
The cerebrum (brain) is divided into four main lobes, each having specific functions and responsibilities. How are the 4 lobes identified?
frontal lobe, parietal lobe, temporal lobe, occipital lobe
Nervous system that promotes relaxation and restoration.
Parasympathetic Nervous System
Nerves outside of the CNS that spread throughout the body.
peripheral nervous system
A network of interconnected cavities within the brain that are filled with cerebral spinal fluid (CSF).
Ventricles
Serves as a link between the nervous system and the endocrine system.
hypothalamus
Located beneath the cerebral cortex, this organ is a sensory relay for the brain.
thalamus
Three layers of protective membranes that surround the brain and spinal cord.
meninges
connects the brain to the spinal cord and regulates vital functions such as breathing heart rate and consciousness.
Brainstem
Connect the brain to different parts of the head and neck, allowing for sensation and space perception, muscle movement, and life preserving tasks.
Cranial nerves
Mechanoreceptors (responding to mechanical pressure), thermoreceptors (responding to temperature), and nociceptors (responding to pain).
Sensory receptors
Carry messages from the brain to the muscles, telling them to move.
Motor nerves
Connects the CNS to the rest of the body, transmitting signals between the brain and spinal cord and the organs, muscles, and sensory receptors throughout the body.
peripheral nervous system
A fatty substance produced by glial cells which enhances the speed and efficiency of signal conduction.
myelin