These questions will help you prepare for the lesson quiz. Be sure to read the feedback carefully for any questions you answer incorrectly, and review those topics before leaving this lesson and taking the quiz.
Which describes a "set point" in the body?
- a normal value for something in the body
- the place where decisions are made about how to respond to a stimulus
- the total of all the processes needed to maintain a stable environment
- a part of the body that receives a stimulus and turns it into a response
The human body's set point for temperature is about 37 degrees Celsius (98.6 degrees F).
The human body's set point for temperature is about 37 degrees Celsius (98.6 degrees F).
The human body's set point for temperature is about 37 degrees Celsius (98.6 degrees F).
The human body's set point for temperature is about 37 degrees Celsius (98.6 degrees F).
Which describes a negative feedback loop?
- the total of all the pathways that are used to sense the environment
- a pathway that reduces the output or activity of an organ or system back to its normal range of functioning
- the total of all the pathways needed to maintain a stable environment
- a pathway in which the effect of the system stimulates another cycle of the system
The furnace/thermostat system in a house works on a negative feedback loop.
The furnace/thermostat system in a house works on a negative feedback loop.
The furnace/thermostat system in a house works on a negative feedback loop.
The furnace/thermostat system in a house works on a negative feedback loop.
Which is an example of a positive feedback loop?
- osmoregulation
- thermoregulation
- contractions used in childbirth
- balance of blood glucose
A positive feedback loop occurs when the output of a system stimulates another cycle of the system.
A positive feedback loop occurs when the output of a system stimulates another cycle of the system.
A positive feedback loop occurs when the output of a system stimulates another cycle of the system.
A positive feedback loop occurs when the output of a system stimulates another cycle of the system.
Which is the integrator in thermoregulation?
- sweat glands
- hypothalamus
- kidney
- muscles
An integrator receives signals from the sensors and sends signals to effectors.
An integrator receives signals from the sensors and sends signals to effectors.
An integrator receives signals from the sensors and sends signals to effectors.
An integrator receives signals from the sensors and sends signals to effectors.
Which describes one thing that happens during thermoregulation when a sensor recognizes that a person's temperature is 35 degrees C?
- Sweat glands are activated.
- Muscles under the skin make body hair lie flat.
- Muscles in the body contract and expand rapidly.
- Blood vessels under the skin open wider.
The body needs to keep its temperature around a set point of about 37 degrees C.
The body needs to keep its temperature around a set point of about 37 degrees C.
The body needs to keep its temperature around a set point of about 37 degrees C.
The body needs to keep its temperature around a set point of about 37 degrees C.
What is osmoregulation?
- the maintenance of a consistent internal environment throughout the body
- the maintenance of a consistent body temperature
- the maintenance of a consistent balance of water in the body
- the maintenance of a consistent blood glucose level
The kidney is a very important organ in osmoregulation.
The kidney is a very important organ in osmoregulation.
The kidney is a very important organ in osmoregulation.
The kidney is a very important organ in osmoregulation.
Summary
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