33 Questions
What is the organism's ability to keep its internal environment stable, despite changes in the external environment, known as?
Homeostatic regulation
Which system serves as the interface for interaction with the external environment?
Central nervous system
What is the term used to describe a threat to homeostasis?
Stressor
Which type of stressors work bottom-up to activate homeostatic threat?
Physical stressors
What happens when the body reacts to maintain stable levels of temperature, blood pressure, and blood pH?
Feedback control
What does the brain signal the body to do when it senses heat in order to reduce the temperature?
Sweat
What is the purpose of the system nervous signaling to muscles to contract when the temperature drops?
To conserve heat
What is the role of baroreceptors in the regulation of blood pressure?
Detect changes in arterial pressure
In response to an increase in blood pH, what action does the body take?
Increase hyperventilation
What is the function of feedforward control in homeostatic regulation?
Anticipating and correcting perturbations before they occur
What does the Frank Starling Mechanism regulate?
Blood volume in the atrium chambers
Which division of the autonomic nervous system is responsible for reciprocal regulation of organic function?
Parasympathetic nervous system (PNS)
What is the role of postganglionic fibers in the autonomic nervous system?
Elaborate and transmit more detailed messages to target organs
What do ganglia function as in the autonomic nervous system?
Part of local regulation system/reflexes
What is the consequence of increasing ventilation and heart rate before physical exercise, even before PaCO2 increases?
Increase blood pH levels
What is the main purpose of intrinsic control mechanisms in homeostatic regulation?
To regulate vital organs independently of external factors
Which type of stressors work top down to activate homeostatic threat?
Psychological stressors
What is the term used to describe an organism's ability to keep its internal environment stable, despite changes in the external environment?
Homeostatic regulation
What is the main interface for interaction with the external environment?
Central nervous system
What does the brain signal the body to do when it senses heat in order to reduce the temperature?
Sweat to reduce temperature
What is the consequence of increasing ventilation and heart rate before physical exercise, even before PaCO2 increases?
Increased blood pH levels
Which division of the autonomic nervous system is responsible for reciprocal regulation of organic function?
Parasympathetic nervous system
What is the physiological response to a decrease in blood pH levels?
Hyperventilation and increased gas exchange
Which mechanism is responsible for increased wall stretch and muscle fiber tension in the atria before the next beat of the heart?
Frank Starling Mechanism
What is the primary function of the autonomic nervous system in the context of homeostatic regulation?
Reciprocal regulation of organic function
In response to a decrease in temperature, what does the nervous system signal the muscles to do?
Contract to generate heat and conserve warmth
What is the primary role of baroreceptors in the regulation of blood pressure?
Detect changes in arterial pressure
Which division of the autonomic nervous system is responsible for increasing heart rate and blood pressure during stressful situations?
Sympathetic (SNS)
What is the term used to describe the body's ability to anticipate and correct perturbations before they occur?
Feedforward control
What is the purpose of intrinsic control mechanisms in homeostatic regulation?
To coordinate responses between vital organs and local reflexes
'Hyperpnea' refers to which physiological response before physical exercise?
Hyperventilation and increased heart rate
What is the main function of ganglia in the autonomic nervous system?
To relay signals between afferent and efferent pathways
What is 'homeostatic regulation' most closely associated with?
The organism's ability to maintain internal stability despite external changes
Test your knowledge of biopsychological interactions and homeostatic regulation in the field of health psychology. Explore the organism's ability to maintain stability in its internal environment despite external changes, such as temperature, blood pH, and blood glucose levels.
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