Structures
What is the main organ of the respiratory system?
lungs
What is the main function of the respiratory system?
To bring oxygen in and remove carbon dioxide
Which two systems work together to deliver oxygen to cells?
Respiratory and circulatory
Which body system brings in oxygen and releases carbon dioxide?
Respiratory
What is homeostasis?
The body’s ability to maintain a stable internal environment
What organ in the circulatory system pumps blood?
The heart
What is the main function of the circulatory system?
To transport oxygen, nutrients, and wastes
Which two systems remove waste (liquid & gas) from the body?
Respiratory and excretory
What does the endocrine system use to send messages?
Hormones
What happens to your body when it gets too hot?
You sweat to cool down
What are the levels of organization in the human body?
Cells → Tissues → Organs → Organ Systems → Organism
What is the main function of the digestive system?
To break down food into nutrients the body can use
Which systems work together when your stomach growls?
Digestive and nervous
You were walking in the woods and see a bear, your heart rate increases and the hormone adrenaline put you in fight or flight mode. What 3 body systems are working here?
Endocrine system, nervous system, circulatory system.
How do the circulatory and excretory systems maintain homeostasis?
Blood carries waste to kidneys to be filtered out
What is the main organ of the integumentary system?
skin
What is the main function of the nervous system?
To control and coordinate body actions
The ovaries release hormones to prepare the uterus for pregnancy. Which systems are working together?
reproductive and endocrine
You found out that your cat is pregnant and expecting kittens soon. What body systems are involved in this scenario?
Reproductive and Endocrine
Give an example of positive feedback
Birth or breast feeding
Which organ produces digestive juices to help break down food?
Stomach
What is the main function of the endocrine system?
To produce hormones that regulate body processes
Explain how the digestive, respiratory, and circulatory systems work together to produce energy.
Digestive breaks down food, respiratory brings oxygen, circulatory delivers both to cells for energy.
When a pathogen enters the body which 3 body systems are at work to keep you healthy?
Nervous (detects the pathogen), Immune (or lymphatic), circulatory (circulates white blood cells)
What could happen if one system fails?
Other systems can’t function properly and homeostasis is lost leading to severe health issues or death.