In the cold, thermoreceptors in your skin detect the temperature and inform your brain, which tells the skeletal muscles to contract, causing shivering. What is the effector?
brain
shivering
thermoreceptors
skeletal muscles
The Correct Answer is D
A. Brain: The brain is the control center, not the effector.
B. Shivering: Shivering is a response, not an anatomical structure. The effector must be a structure that performs an action.
C. Thermoreceptors: These are the sensory receptors (detectors), not effectors.
D. Skeletal muscles: Skeletal muscles are the effectors that contract to produce shivering, generating heat in response to cold.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Organization:
Refers to the structured arrangement of parts from chemical to system level, not interaction with the environment.
B. Responsiveness:
Responsiveness is the ability to sense changes in the environment and react appropriately to maintain balance (homeostasis).
C. Growth and Development:
Refers to increase in size and complexity over time, not directly about environmental interaction.
D. Metabolism:
Involves internal chemical reactions but not necessarily interaction with external stimuli.
E. Waste Disposal:
A bodily process to remove waste, not primarily about environmental response.
Correct Answer is C
Explanation
A. covalent: This is too general. Covalent bonds involve shared electrons, but do not specify if sharing is equal or unequal.
B. ionic: Ionic bonds involve transfer of electrons, typically between metals and nonmetals. Carbon and oxygen share electrons.
C. polar covalent: A polar covalent bond involves unequal sharing of electrons. Electrons spend more time around oxygen because it is more electronegative than carbon.
D. hydrogen: A hydrogen bond is an intermolecular force, not a bond between carbon and oxygen atoms.
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