What is the effector in the regulatory mechanism?

Which organ is found predominantly in the epigastric region?

ANSWER:

Which organ is found predominantly in the epigastric region?

left kidney

urinary bladder

stomach

rectum

Art-based Question Unit 2 Question 3

Part A

Diagram of an example of homeostatic regulation. It begins with a stimulus, causing the temperature to decrease below the set point of 70 degrees Fahrenheit. There is an arrow to a panel that shows a thermometer, which detects the change in temperature. The information is then sent to the thermostat, which determines the temperature is below the set point and sends a signal to the heater, which turns on, produces heat and warms the room. As room temperature returns to set point, feedback turns the heater off.

This figure represents a negative feedback loop that controls the temperature of a room. What is the thermometer?

ANSWER:

Diagram of an example of homeostatic regulation. It begins with a stimulus, causing the temperature to decrease below the set point of 70 degrees Fahrenheit. There is an arrow to a panel that shows a thermometer, which detects the change in temperature. The information is then sent to the thermostat, which determines the temperature is below the set point and sends a signal to the heater, which turns on, produces heat and warms the room. As room temperature returns to set point, feedback turns the heater off.

This figure represents a negative feedback loop that controls the temperature of a room. What is the thermometer?

receptor

effector

control center

regulated variable

Art-based Question Unit 2 Question 4

Part A

Diagram of negative feedback loop that controls body temperature. It begins with a panel showing temperature decreasing below normal. There is an arrow to a panel that shows receptors in brain cells which detect change in temperature. The information is then sent to brain cells which receive the information and determine body temperature is below normal range. Next, a signal is sent to a panel which shows nerve cells which activate skeletal muscle cells to start shivering and producing heat. As body temperature returns to set point, feedback stops the shivering.

This figure represents a negative feedback loop that controls body temperature. What is the effector in the regulatory mechanism?

ANSWER:

Diagram of negative feedback loop that controls body temperature. It begins with a panel showing temperature decreasing below normal. There is an arrow to a panel that shows receptors in brain cells which detect change in temperature. The information is then sent to brain cells which receive the information and determine body temperature is below normal range. Next, a signal is sent to a panel which shows nerve cells which activate skeletal muscle cells to start shivering and producing heat. As body temperature returns to set point, feedback stops the shivering.

This figure represents a negative feedback loop that controls body temperature. What is the effector in the regulatory mechanism?

skeletal muscle

receptors in brain cells that detect body temperature

body temperature

nerve cells that determine temperature is too low and activate skeletal muscle

Art-based Question Unit 2 Question 5

Part A

Diagram of a positive feedback loop involving blood platelets. It begins with a stimulus in the form of a damaged blood vessel. There is an arrow to a second panel that shows receptors on platelets detecting the damage. The information is then sent to the control center/effector, represented by activated platelets inside blood vessel, which release chemicals that attract and activate more platelets. There is a loop made of green arrows associated with this panel. The next panel represents the response, the blood vessel is sealed and finally the last panel represents the end point, showing that once the vessel is sealed, platelet activity decreases.

What do the green arrows in this figure represent?

ANSWER:

Diagram of a positive feedback loop involving blood platelets. It begins with a stimulus in the form of a damaged blood vessel. There is an arrow to a second panel that shows receptors on platelets detecting the damage. The information is then sent to the control center/effector, represented by activated platelets inside blood vessel, which release chemicals that attract and activate more platelets. There is a loop made of green arrows associated with this panel. The next panel represents the response, the blood vessel is sealed and finally the last panel represents the end point, showing that once the vessel is sealed, platelet activity decreases.

What do the green arrows in this figure represent?

static internal environment

positive feedback loop

negative feedback loop

body temperature regulation