Exam (elaborations)
BIO 255 Unit 1 Exam with Complete Solutions
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BIO 255 Unit 1 Exam with Complete Solutions Mucus Correct Ans-a substance covering the hair cells o
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BIO 255 Unit 1 Exam with Complete SolutionsThermoreceptors Correct Ans-Detect temperature
Photoreceptors Correct Ans-detect light
nociceptors Correct Ans-detect pain
chemoreceptors Correct Ans-detect chemicals; gustation and olfaction
mechanoreceptors Correct Ans-are flexible and bend which causes the action potential
Exteroreceptors Correct Ans-start external to the body
Interoreceptors Correct Ans-start internal to the body
, BIO 255 Unit 1 Exam with Complete Solutions
Proprioceptors Correct Ans-Found in joints and give info about body position and
movement
General (somesthetic) senses Correct Ans-AKA body; skin, muscles, tendons, joints, viscera
> touch, pressure, stretch, temperature, pain...
Special senses Correct Ans-Limited to head and neck; carry information via cranial nerves
Vallate Correct Ans-Line up in rows in an inverted V on the posterior side of the tongue;
have a circle within a circle that creates a moat to trap tastants; picks up bitter
Filiform Correct Ans-projections without taste buds; hook like
Receptor Correct Ans-structure specialized to detect a stimulus
, BIO 255 Unit 1 Exam with Complete Solutions
Stimulus Correct Ans-something that causes an action to happen
Sense organ Correct Ans-a structure that is composed of nervous and other tissue types
that enhance a stimulus
Phasic receptor Correct Ans-"phase out;" detect a stimulus but quickly adapt even if the
stimulus continues
Tonic receptor Correct Ans-adapt more slowly, fire APs more steadily
Sensation Correct Ans-subjective awareness to a stimulus
Perception Correct Ans-conscious awareness to a stimulus
, BIO 255 Unit 1 Exam with Complete Solutions
Transduction Correct Ans-the conversion of one form of energy into another
Sensory receptors transmit Correct Ans-modality, location, intensity, and duration
Modality Correct Ans-Type of info ex. taste, smell, pressure; the info follows a road which
is how the brain knows what it is (line code)
Location Correct Ans-receptive Fields help the brain know where it's coming from
Intensity Correct Ans-degrees of the sense (ex. bright vs dim, loud vs soft)
Duration Correct Ans-how long stimulus last, sensed By changes in firing frequency
Classification of receptors Correct Ans-Stimulus modality, origin of the stimulus,
distribution of receptors
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