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34 Cards in this Set
- Front
- Back
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How does a population of pathogens become resistant to a drug? |
Natural selection: some are resistant to start |
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Why does it make sense that metabolism is measure in calories? |
The chemical reactions produce heat |
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A highly-virulent pathogen is reproducing in the host most quickly, so it should "win", and therefore most pathogens should evolve to be highly virulent. Why don't they? |
A highly virulent pathogen may be less likely to infect |
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Which of the following is the sequence of vessels the blood follows as it circulates? |
Heart, arteries, capillaries, veins, heart |
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Why are reflexes faster than typical body responses to stimuli? |
The circuit from stimulus to response doesn't go through the brain first |
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How does ADH work and what does it do? |
It binds to the collecting tubules in the kidney |
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How does blood doping work? |
Red blood cells are extracted, stored, and reinjected prior to competition to enhance oxygen uptake and endurance |
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How is a "hangover" as a result of drinking alcohol related yo water balance in the body? |
Alcohol is a diuretic |
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What are four stages of a new infectious disease? |
Exposure, infection, transmission, epidemic |
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Which of the following structures is most responsible for controlling water loss, making urine and maintaining proper salt concentration in the blood? |
Kidney |
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If your olfactory bulb was damaged what might happen? |
Your sense of smell |
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Which of the following drugs are all stimulants? |
Caffeine, nicotine and cocaine |
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Which part of the heart pumps "used" blood back to the lungs to be reoxygenated? |
Right ventricle |
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In your body's heating and cooling system, which of the following would be a positive effector? |
Shivering |
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Why is it easier to overheat on a humid day? |
Evaporative heat loss by sweating decreases when the air is humid |
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What are the three major parts of the brain? |
Hindbrain, midbrain, forebrain |
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Which of the following neurodegenerative diseases is the result of a lack of the neurotransmitter dopamine which leads to tremors? |
Parkinson's disease |
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What makes heart cells best together? |
The pace maker |
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What controls the core body temperature? |
The hypothalamus |
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What causes malaria? |
Particular species of protozoan |
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Why do your nose, ears, fingers and toes get cold first when you are in a cold environment? |
The body directs blood flow in toward the core |
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If resistance is possible, why aren't all bacteria resistant to antibiotics? |
Maintaining resistance leaves less energy for repoduction |
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What is and what causes a concussion? |
A brain bruise: anything that causes the brain to bang against the inside of the skull |
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What is the basic energy you need to maintain your body processes when you are at rest? |
Your basal metabolic rate |
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You raise your hand to answer a question on class. Which part of the nervous system are you using? |
Somatic nervous system |
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Why is the protein hemoglobin necessary for successful circulation of oxygen? |
Because it bonds easily with oxygen |
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What is blood mostly made of? |
Plasma |
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Functional magnetic resonance imaging Is a tool that has been very useful in identifying what parts of the brain do what. Scientists can have a person perform some particular activity and then look for active areas in the brain. How does the fMRI work? |
It takes a picture of the inside of the brain according to blood flow. |
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Is it true that your body is mostly made up of your own cells? |
No |
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There is a loud crash in the room behind you and you jump. Which part of your nervous system caused that response? |
Sympathetic branch |
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Which of the following interactions is an example of commensalism? |
Eyebrow mites and humans |
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If you are injured and your legs are paralyzed, what part of you was probably damaged? |
The spinal cord below the arms |
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Where do new diseases most commonly originate? |
Pathogens from other species that jump to humans |
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How does the body "know" to increase heart and breathing rates when you are active? |
Carbonic acid is produced when carbon dioxide dissolves in the blood. |
