The Systems
The brain and spinal cord are part of the _____________________________.
Central Nervous System
These are composed of a cell body, dendrites, and axons.
Neurons or nerve cells
White matter is composed mostly of neuron cell bodies. T/F. (If false, what is?)
False. Grey Matter
What are the 5 tastes?
Salty, bitter, sweet, sour, and unami
The left hemisphere of the brain controls _______________________.
The right side of the body
The system of nerves which carries information from the body’s receptors to the CNS.
Sensory Nervous System
What carry signals toward the cell body of a neuron?
Dendrites
This part of the brain allows the different hemispheres of the brain to communicate
Corpus Callosum
This converts the back and forth motion of the ear ossicles into electrical signals that the brain interprets as sound.
Cochlea
The number of touch ____________ in an area of skin determines how sensitive it is to touch.
Receptors
What systems make up the Peripheral Nervous System?
Autonomic, Sensory, and Motor Nervous Systems
What is a Synapse?
A gap between the axon of a neuron and the receiving cell.
This part of the brain controls the movement of voluntary muscles
Cerebellum
The sense that is everywhere on your body, called a somatic sense.
Touch
What does the ear drum do?
Converts air vibrations to ear ossicles vibrations
The part of the Autonomic Nervous System that activates relaxation by decreasing heart rate and blood pressure.
Parasympathetic Division
Neurons cannot function properly without the help of what?
Neuroglia
This part of the brain controls complex and abstract thought like thinking, learning, memory, etc.
Cerebrum
In what order does light strike the eye (5 parts)?
Cornea, aqueous humor, pupil, lens, retina
The axon is often covered by a fatty insulator called what?
Myelin sheath.
Cell bodies of neurons typically cluster together in groups called __________
Ganglia
If the chemical balance of this is wrong, doctors will examine it to try to understand the nervous system issue.
Cerebrospinal fluid
What regulates the "fight or flight" response?
Hypothalamus
The roof of your nasal cavity houses mucus-covered tissue called what?
Olfactory epithelium
What system dealing with memories and emotions is linked to the olfactory cells?
Limbic system