Zusammenfassung der Ressource
Frage 1
Frage
In a negative feedback loop used to maintain homeostasis, which of the following terms is NOT likely to be used?
Frage 2
Frage
The organ that best regulates body temperature is the
Frage 3
Frage
Most often, the integrating center in a feedback loop will be located within the _______.
Frage 4
Frage
Homeostasis is best conceived as a state of
Frage 5
Frage
Which of the following is NOT a primary tissue?
Antworten
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Connective
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Epithelial
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Squamous
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Nervous
Frage 6
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Which of the following glands has both endocrine and exocrine functions?
Antworten
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Mammary glands
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Pancreas
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Adrenal glands
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Prostate
Frage 7
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The scattered fibrous protein characteristic of many connective tissues is
Antworten
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dentin
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keratin
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cartilage
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collagen
Frage 8
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The skin secretes sweat, and thus is an exocrine organ. It is also considered an endocrine gland because it
Antworten
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synthesizes and secretes sebum
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synthesizes and secretes vitamin D
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stores and releases fat
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plays an important role in our immune functioning
Frage 9
Frage
Like most physiological parameters, blood pH is very tightly regulated and rarely falls outside the narrow range of 7.35-7.45 in healthy individuals.
Antworten
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Always true
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Sometimes true
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Never true
Frage 10
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Positive feedback loops have antagonistic effectors that work together to continuously move a particular variable toward a set point.
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Always true
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Sometimes true
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Never true
Frage 11
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Organs possess all four types of tissue.
Antworten
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Always true
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Sometimes true
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Never true
Frage 12
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When the level of calcium ions in our blood strays too far away from the set point, more of the hormone calcitonin is released from the parathyroid glands.
Antworten
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Always true
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Sometimes true
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Never true
Frage 13
Frage
Pluripotent stem cells can divide, grow and differentiate into any specialized type of cell in the body.
Antworten
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Always true
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Sometimes true
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Never true
Frage 14
Frage
A primary function of an organ system is to maintain homeostasis.
Antworten
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Always true
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Sometimes true
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Never true
Frage 15
Frage
Check all the statements that are true regarding the diagram.
Antworten
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When moving from a reclining to a standing position, gravity causes a drop in blood pressure in the head.
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Pressure receptors in blood vessels signal the central nervous system when there is a significant change in blood pressure.
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In this reflex, the pressure receptors are the effectors.
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If this reflex does not function properly, a person may faint due to lack of blood flow to the brain.
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Increased heart rate, leads to increased cardiac output, which raises blood pressure.