chapter one a&p – Flashcards

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question
Histology would be best defined as a study of ________.
answer
tissues
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The study of large body structures, visible to the naked eye, such as the heart is called ________ anatomy
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Gross
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Choose the anatomical topic and definition that is not correctly matched. Gross anatomy: study of structures visible to the eye. Cytology: study of the structures in a particular region. Embryology: study of the changes in an individual from conception to birth. Microscopic anatomy: study of structures too small to be seen by the naked eye.
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Cytology: study of the structures in a particular region.
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Which of the following are subdivisions of anatomy?
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regional, systemic, and surface
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Which of the following describes the operation of the heart and blood vessels?
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cardiovascular physiology
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A structure that is composed of two or more tissue types that work together to perform specific functions for the body is a(n) ________.
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organ
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Place the following in correct sequence from simplest to most complex: 1. molecules 2. atoms 3. tissues 4. cells 5. organs
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2-1-4-3-5
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One of the functional characteristics of life is excitability or responsiveness. This refers to ________.
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sensing changes in the environment and then reacting or responding to them
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An increased rate of breathing as a result of an increased buildup of carbon dioxide in the bloodstream would be best described as an example of ________ .
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Excretion and Responsiveness
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Average body temperature is ________ degrees centigrade.
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37
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Which of the following would not be a functional characteristic of life?
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decay
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The single most abundant chemical substance of the body, accounting for 60% to 80% of body weight, is ________.
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water
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Which one of the following systems responds fastest to environmental stimuli?
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nervous
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Which of the following are survival needs of the body?
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nutrients, water, atmospheric pressure, and oxygen
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The part that determines the set point in homeostatic control mechanisms is the ________.
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control center
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What is the main, general purpose of negative feedback
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to maintain homeostasis
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Which of the following statements is true concerning feedback mechanisms? Positive feedback mechanisms always result in excessive damage to the host. Blood glucose levels are regulated by positive feedback mechanisms. Negative feedback mechanisms tend to increase the original stimulus. Negative feedback mechanisms work to prevent sudden severe changes within the body.
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Negative feedback mechanisms work to prevent sudden severe changes within the body.
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A good example of a positive feedback mechanism would be ________.
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enhancement of labor contractions
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Homeostasis is the condition in which the body maintains ________.
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a relatively stable internal environment, within limits
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Which of the following statements is the most correct regarding homeostatic imbalance?
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It is considered the cause of most diseases.
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Which of the following best defines anatomy?
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It is the study of the structure of body parts and their relationships to one another.
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Which of the following best demonstrates the principle of complementarity of structure and function?
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Bones can support and protect body organs because they contain hard mineral deposits.
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What does the principle of complementarity of structure and function mean?
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Function reflects structure and structure determines function.
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Which of the following is the simplest level of structural organization in the human body?
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chemical
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Which of the following is NOT an example of maintaining boundaries? Single-celled organisms possess a limiting membrane that encloses its contents and lets in needed substances while restricting entry of potentially damaging or unnecessary substances. When your hand is exposed to extreme heat, you involuntarily pull your hand away from the painful stimulus. The human body as a whole is enclosed and protected by the integumentary system. Each cell in our body is surrounded by a selectively permeable membrane.
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When your hand is exposed to extreme heat, you involuntarily pull your hand away from the painful stimulus.
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Which life process in the body sustains all others?
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metabolism
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the figure were used to represent a heating system in a home, which of the following would be most directly associated with the structure labeled B? middle off a balance
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thermostat setting
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If the figure were used to represent the regulation of body temperature, the structures represented by the letter C would include ______. Last stage returning to ballance
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sweat glands
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The regulation of body temperature is an example of which type of homeostatic control?
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negative feedback
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In a homeostatic control mechanism, which component monitors the environment?
answer
receptor
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