Respiratory System
Which gas is expelled from the body as a waste product when you breathe out?
Carbon dioxide
What is the primary organ responsible for pumping blood throughout the body?
The Heart
Where is the sternum located
Located in the middle of your chest
Your brain sends signals to your muscles
How is DNA shaped?
DNA is shaped like a twisted ladder known as a double helix.
What is the main function of the respiratory system?
To take in oxygen and expel carbon dioxide
What are the 2 types of blood vessels?
Veins and arteries
Which specific bones protect your heart and lungs?
The ribs
What is the main function of the muscular system?
To produce movement, maintain posture, and generate heat for the body.
What does DNA stand for?
Deoxyribonucleic acid
What is the main tube (windpipe) that carries air into your chest?
Trachea
What gives blood its bright red color when it carries oxygen?
Hemoglobin
How many bones does an adult have?
206 bones
What are muscles that you cannot consciously control called?
Involuntary Muscles
What is the difference between DNA and RNA?
DNA stores your body's genetic blueprints, while RNA reads those blueprints to build the proteins your body needs.
What are the tiny air sacs in the lungs where gas exchange occurs?
Alveoli
What device does a doctor use to listen to your heartbeat?
Stethoscope
What is the name of the long bone that forms the thigh?
The femur
Where are biceps and triceps located on the arm?
The biceps are located on the front of the upper arm, while the triceps are located on the back of the upper arm.
What are the layers of skin?
Epidermis, Dermis, Hypodermis
What is the flap of tissue that prevents food and drinks from entering your windpipe when you swallow?
Epiglottis
What does an oximeter measure?
It measures oxygen saturation (SpO₂) in your blood and your pulse (heart rate)
Which part of the bone produces blood?
Bone marrow
What tissue connects your muscles to your bones?
Tendons
What are the 4 nitrogenous bases of DNA?
Adenine, Thymine, Guanine, Cytosine