31 bio – Flashcard

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THE PERIPHERAL NERVOUS SYSTEM COLLECTS INFORMATION ABOUT CHANGES IN INTERNAL BODY TEMPERATURE USING
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NERVES AND SUPPORTING CELLS
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WHICH DIVISION(S) OF THE PERIPHERAL NERVOUS SYSTEM TRANSMIT(S) IMPULSES FROM SENSE ORGANS TO THE CENTRAL NERVOUS SYSTEM?
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SENSORY DIVISION
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WHICH SYSTEM ENABLES YOU TO UNDERSTAND THE WORDS YOU READ IN A BOOK?
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NERVOUS SYSTEM
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WHICH SYSTEM COORDINATE’S THE BODY’S RESPONSE TO CHANGES IN INTERNAL AND EXTERNAL ENVIRONMENT?
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NERVOUS SYSTEM
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WHICH DIVISION OF THE NERVOUS SYSTEM SPEEDS UP YOUR HEART RATE?
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AUTONOMIC
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WHAT IS THE FUNCTION OF THE CENTRAL NERVOUS SYSTEM?
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TO PROCESS INFORMATION AND FORM A RESPONSE
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YOUR ALARM CLOCK WAKES YOU UP AND REMINDS YOU TO GET READY FOR SCHOOL. WHICH TYPE OF NEURON RECEIVES THE SOUND OF THE ALARM?
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SENSORY NEURONS
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WHICH STRUCTURE OF A NEURON CARRIES IMPULSES TO THE CELL BODY?
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DENDRITE
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WHEN AN IMPULSE IS REACHES THE END OF A NEURON, IT TRIGGERS THE RELEASE OF
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NEUROTRANSMITTERS
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HOW DOES NICOTINE AFFECT DOPAMINE SYNAPSES?
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IT INCREASES THE RELEASE OF DOPAMINE
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What begins when a neuron is stimulated by another neuron or by a stimulus in the environment?
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An impulse
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HOW MANY PAIRS OF SPINAL NERVES BRANCH OUT FROM THE SPINAL CORD, CONNECTING THE BRAIN TO DIFFERENT PARTS OF THE BODY?
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31
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WHICH RECEPTORS RESPOND TO A SCRAPED KNEE?
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Chemoreceptors
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WHEN YOU SWAT A FLY, WHICH TYPE OF NEURON STIMULATES YOUR ARM TO MOVE?
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Motor Neuron
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WHICH STRUCTURE IN THE EAR CONTAINS TINY HAIRS THAT SEND IMPULSES TO THE BRAIN, WHICH PROCESSES THEM AS SOUND?
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Oval Window
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IF THE MUSCLES IN A PERSON’S IRISES ARE DAMAGED, HOW IS HIS OR HER EYE SIGHT DIRECTLY AFFECTED?THE PERSON IS NOT ABLE TO REGULATE THE AMOUNT OF LIGHT THAT ENTERS THE EYE
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THE PERSON IS NOT ABLE TO REGULATE THE AMOUNT OF LIGHT THAT ENTERS THE EYE
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INFECTIONS OF THE EAR MAY CAUSE INFLAMMATION. INFLAMMATION THAT AFFECTS WHICH STRUCTURE WOULD CAUSE DIZZINESS?
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SEMICIRCULAR CANALS
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The largest part of a typical neuron is the part that contains the nucleus and much of the cytoplasm which is known as
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cell body
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The main communication between the brain and the rest of the body is called
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spinal cord
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The rapid response is caused by impulses that travel a pathway known as a
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reflex arc
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The photoreceptors that allows us to have colored vision are called
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cones
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In some neurons the axon is surrounded by an insulating membrane known as the
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myelin sheath
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The peripheral nervous system consists of two major divisions, the sensory division and the ________
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divison
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Sensations of smell and taste are both the results of impulses sent tot he brain
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chemoreceptors
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The tough transparent layer of cells in the eye that allows light to enter the eye is called
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cornea
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Nervous system impulses are transmitted by cells called
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neurons
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Most of the neurons that enter and leave the brain do so in a large cluster of neurons and other cells known as the
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spinal cord
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Different sensory receptors in the body respond to?
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touch, temperature, and pain
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The long fiber that carries impulses away from the cell body
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axon
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Tiny muscles in this structure adjust the amount of light that enters the eye
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iris

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