Fluid found in which structure of the inner ear stimulates hair cells in response to sound?
Semicircular canals
Cochlea
Oval window
Ear canal
Ears are adapted to respond to which form of energy?
Vibrations
Light
Chemical
Heat
What is characteristic of drug tolerance?
psychological or physiological dependence on a drug
craving for a drug
need for more of a drug to attain a desired effect
withdrawal effects
Which is true of the human circulatory system?
It transports oxygen and nutrients.
It makes blood cells.
It breaks down food and releases nutrients.
It is the first line of defense against pathogens.
Which vessels carry blood away from the heart?
Capillaries
Lymphatics
Arteries
Veins
Red blood cells transport oxygen attached to which components?
Nuclei
Plasma membranes
Hemoglobin
Nitrogen
Which blood component can recognize and kill disease-causing organisms?
Fibrin
Platelets
Red blood cells
White blood cells
How do impulses move at a synapse?
by an electrical charge
by a chemical neurotransmitter
by touching the next neuron
by osmosis
Which eye structure provides information about colors to the brain?
Cone
Lens
Retina
Rod
What is true about reflexes?
They travel to the brain on sensory neurons.
They travel to the brain on motor neurons.
They are controlled voluntarily.
They are processed in the spinal cord and not in the brain.
Which is the correct path that a nerve impulse will follow in a reflex arc?
Sensory neuron → interneuron → motor neuron
Motor neuron → sensory neuron → interneuron
Motor neuron → interneuron → sensory neuron
Interneuron → motor neuron → sensory neuron
Which would be the effect of a malfunctioning neurotransmitter?
A nerve impulse would be stopped in the brain.
A nerve impulse would be stopped in the spinal column.
An impulse could not cross the gap between neurons.
An impulse could not move along the axon of a neuron.
Which is a stimulant?
Cocaine
Sugar
Tea
Wine
The neurotransmitter that creates the pleasure feeling a sprinter experiences after winning an important race is called ______.
dopamine
hormone
cocaine
nicotine
_____ detect combinations of chemicals that we identify as sweet, sour, salty, and bitter.
taste buds
cochlea
retina
lens
The _____ transmit information about body position and balance to the brain.
semicircular canals
cochlea
lens
retina
The spinal column is part of a major division of the nervous system called the _______________________________.
central nervous system
peripheral nervous system
somatic nervous system
autonomic nervous system
_____________________ is the mechanical movement of air into and out of your lungs.
breathing
respiration
internal respiration
external respiration
If a teenager with type A blood is injured in an auto accident and needs a blood transfusion, what type of blood will he or she receive?
Only type A
Type A or type O
Only type AB
Only type O
At which point in the respiratory system cycle does cellular respiration take place?
During breathing
During external respiration
When air moves into the bronchioles
During internal respiration