When Smooth Muscles in the Walls of Dermal Blood Vessels

question 81

Multiple Choice

When smooth muscles in the walls of dermal blood vessels contract,

• A) the vessels' lumen enlarge.
• B) more blood enters the dermis.
• C) blood is forced to the epidermis.
• D) body heat is conserved.
• E) more heat is lost.

Explain the control of variables in psychological research and its significance.

Describe the significance of using the scientific method in research on abnormal psychology.

Design and analyze experiments within the context of abnormal psychology, including identifying control and experimental groups and variables.

Discuss the advantages and limitations of different types of psychological studies, including case studies, correlational studies, and experimental studies.

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Definitions:

Auditory Hair Cells

Sensory cells located in the cochlea of the inner ear that convert sound waves into electrical signals for the brain to interpret as sound.

Rods and Cones

Photoreceptor cells in the retina of the eye, with rods being responsible for vision at low light levels and cones being responsible for color vision and detail.

Pitch Perception

The process by which sounds are interpreted as being high or low, dependent on the frequency of the sound waves.

Frequency Theory

A theory in hearing that suggests the perception of pitch is related to the frequency at which the entire basilar membrane vibrates.