Week 1- Homeostasis

Question 1

Negative feedback loop

Answer 1

A countermeasure to restore a set point

Question 2

How does homeostasis work

Answer 2

Using a negative feedback loop, it stimulates an opposite change through stimulus, sensors, control center, set point and effectors

Question 3

Positive feedback

Answer 3

An intensifying effect in the body to produce more of something

Question 4

Is a fever a failure of the body to maintain homeostasis?

Answer 4

No! Fever is the body’s response to infection or other stimuli. The set temperature point is controlled by the hypothalamus, which raises temperature when infection is present

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

What are pyrogens

Answer 8

Molecules that change body set point in the hypothalamus

Question 9

What is Rheostasis

Answer 9

Adjusting the set point of the negative feedback look
- doesnt impact anything but the control center

Question 10

Afferent pathway

Answer 10

sends data to the control center, also refers to sensory information that is transmitted from the body’s sensory receptors (such as the eyes, ears, skin, and internal organs) to the brain and spinal cord.

Question 11

Efferent pathway

Answer 11

Directs the response to the stimulus. They refer to motor information that is transmitted from the brain and spinal cord to the muscles and glands, causing them to produce a response.

Question 12

Which two systems monitor the body for homeostasis

Answer 12

nerveous and endocrine

Question 13

Stimuli

Answer 13

disrupts homeostasis by increasing or decreasing a controlled condition

Question 14

Sensors

Answer 14

monitor the controlled condition

Question 15

Control centers

Answer 15

receive input and provide nerve impulses or chemical signals to effectors

Question 16

What role do afferent and efferent pathways play in homeostasis

Answer 16

Efferent signals are responsible for executing the body’s response to the detected deviations from homeostasis. Afferent signals provide the central nervous system with information about the body’s internal environment and external surroundings.they allow the body to constantly monitor and respond to changes in the internal and external environment. By working together, these signals help to keep the body’s physiological variables within a narrow range (homeostasis)