Homeostasis
What is homeostasis?
The balance of the body.
Place the following terms in order from smallest to largest.
[Organ, Organism, Tissue, Organ System, Cell]
Cell --> Tissue --> Organ --> Organ System --> Organism
How many chambers does the heart have?
4
What is exhaled when breathing?
Carbon dioxide
How old am I?
25
What's an example of positive feedback?
Healing a cut or pregnancy contractions
What is the heart an example of?
What are the 4 chambers of the heart?
Right/left atrium and right/left ventricle
What is the function of the nervous system?
To control the actions of the body.
Solve for x.
-3 + 2(x+4) = 25
x = 10
What type of feedback is blood pressure an example of?
Negative feedback
Could a human still exist if they were missing a cell? Explain.
Yes, cells are constantly regenerating replacing the missing ones.
Fill in the blank.
Veins carry blood _____ to the heart.
What is the function of the respiratory system?
To maintain homeostasis by exchanging gases.
Fill in the blank.
My dog ate an entire ________ during the summer.
Cake
What is the difference between positive and negative feedback?
Negative feedback: Counteracts a variable, creates a balanced state.
Positive feedback: Amplifies a variable, creates an unbalanced state.
Could a human still exist if they were missing an entire organ system? Explain.
No, all organ systems are needed to live because each system relies on the other to function.
What is the function of the circulatory system?
It carries oxygen, nutrients, and hormones to cells, and removes waste products like carbon dioxide.
What does a sensory nerve cell do?
It gives you the sense of touch.
How do I like my coffee?
Lol I don't drink coffee.
Why is temperature regulation an example of negative feedback?
The goal with temperature regulation is to being the body back to its setpoint of 98 degrees.
Cold --> Shiver to warm up
Hot --> Sweat to cool down
Which organ system are the lungs a part of?
Respiratory system
What is the name of the air sacs found in the lungs?
Alveoli
Why is a reflex arc important?
True or False: Ms. E saw a tarantula crossing the street a few days ago.
True