Nervous System Cells
This type of nervous system cell acts as 'glue', providing support and structure to other cells of the system.
What are neuroglia?
Of thalamus, cerebellum, or brainstem, this brain region is active when using muscle coordination and balance.
What is the cerebellum?
The central nervous system consists of these two essential structures.
What are the brain and spinal cord?
This lobe of the brain is critical in our ability to think, reason, make decisions, and have a personality.
What is the frontal lobe?
This structure sits on the left side of the upper abdomen and is the largest organ of the lymphatic system.
What is the spleen?
These nervous system cells initiate action potentials, which send messages to other cells of their type.
What are neurons?
Of occipital, parietal, or temporal, this lobe of the cerebrum receives and interprets visual information.
What is the occipital lobe?
Nerves comprise the peripheral nervous system. Of 8, 10, or 12, this many pairs of cranial nerves emerge from the brain and control many things such as muscles of facial expression, as well as senses of smell, taste, and vision.
What is 12?
Abbreviated as CSF, this substance circulates around the brain and spinal cord, offering a source of protection for these essential structures.
What is cerebrospinal fluid?
These connective tissue structures, present in the heart and in veins, prevent blood from flowing backward.
What are valves?
In a reflex arc, these cells carry information from the brain and spinal cord, to a muscle or a gland.
What are motor neurons?
Of thalamus, hypothalamus, or brainstem, this region of the brain is where hunger, thirst, and body temperature are regulated.
What is the hypothalamus?
When this division of the nervous system is activated, we may experience sweaty palms, a jolt of adrenaline, and an increased heart rate as our body prepares to fight the threat or flee the scene.
What is the sympathetic nervous system.
These chemical substances play an integral role in creating emotion, memory, and movement. Examples are dopamine, serotonin, and acetylcholine.
What are neurotransmitters?
These cell structures, present in epithelial cells of the respiratory tract, move mucus toward the throat and can be significantly damaged with cigarette smoking.
What are cilia?
In a reflex arc, these cells pick up messages from a stimulus and carry the information toward the central nervous system.
What are sensory neurons?
Of occipital, parietal, or temporal, this lobe of the cerebrum receives information from the body receptors about pain, temperature and touch.
What is the parietal lobe?
Nerves comprise the peripheral nervous system. Of 11, 21, or 31, this many pairs of spinal nerves emerge from the spinal cord and carry messages both to and from the brain.
What is 31?
This sheath (covering) wraps around some axons so that the signals travel much faster.
What is myelin?
Measured with a spirometer, this is the volume of air that is fully exhaled from the lungs after taking a big deep breath.
What is vital capacity?
In a reflex arc, these cells integrate and interpret information received from sensory neurons.
What are interneurons?
Of thalamus, brainstem, or cerebrum, this region of the brain controls primitive reflexes such as basic breathing rate and basic heart rate.
What is the brainstem?
When we are relaxed, calm and not in a state of crisis or panic, this division of the autonomic nervous system is the one in charge.
What is the parasympathetic nervous system.
Infection and inflammation of these protective tissue coverings of the CNS can be dangerous because of how close they lie to the brain and spinal cord.
What are meninges?
These 'cluster of grapes' structures in the lungs are where exchange of respiratory gases (oxygen and carbon dioxide) takes place.
What are alveoli?