What is the Skeletal system?
The structure that supports and protects the body’s soft tissues and organs.
What is the respiratory system?
The organs that are involved with breathing
What is the nervous system?
A complex network of nerves and nerve cells that transmit signals between the brain and the rest of the body.
What is the Circulatory system?
a network of blood vessels and the heart that moves blood throughout the body.
What is the Immune system?
The immune system is a complex network of cells, tissues, and organs within the body that works together to defend against infections and other diseases.
What is the Skeletal system made up of?
Bones, joints, ligaments, tendons, and cartilage
Some common problems of the respiratory system
influenza, asthma, bronchitis, hay fever, emphysema, laryngitis
What is the nervous system made up of?
The Brain, Spinal Cord, and Nerves
What is the Circulatory System made up of?
The heart, blood vessels, (Including arteries, capillaries, and veins) and blood.
How does the immune system distinguish between "self" and "foreign" cells?
By recognizing unique protein markers called "antigens" on the surface of each cell; the body's own cells have "self-antigens" that are recognized as friendly, while foreign cells like bacteria or viruses have different "non-self" antigens that trigger an immune response when detected.
Which Skeletal system includes the spine and much of the skull?
The Axial Skeleton
What are the 7 main parts of the respiratory system?
Mouth, Nose, pharynx, larynx, trachea, bronchi, lungs
What are the two parts the nervous system is divided in?
The Central Nervous System (CNS) and the Peripheral nervous system (PNS)
What is the difference between arteries, capillaries, and veins?
Arteries carry blood to the heart, veins carry blood back to the heart, and capillaries are the tiny vessels that connect arteries to veins.
What are the different types of white blood cells and what roles do they play in the immune response?
The main types of white blood cells include neutrophils (first responders to infection), monocytes (clean up debris and damaged cells), eosinophils (fight parasites and contribute to allergic reactions), basophils (release histamine during allergic reactions), and lymphocytes (including B cells which produce antibodies and T cells which directly attack infected cells)
Name at least 3 functions of the skeletal system
Answers may include, support, movement, protection, breathing, electrolyte homeostasis, red blood cell production.
How much waste is illuminated through your lungs by breathing?
70%
rue or False? The left side of the brain controls the left side of the body and the right side of the brain controls the right side of the body.
False
What is the large vein that carries deoxygenated blood back to the heart?
The vena cava
What factors can weaken the immune system, like stress or poor nutrition?
Factors that can weaken the immune system include: chronic stress, poor diet lacking essential nutrients, lack of sleep, excessive alcohol consumption, smoking, sedentary lifestyle, and certain medications like chemotherapy drugs which can suppress immune function.
Adults have 206 bones. How many are babies born with?
275-300, that fuse together to create 206 bigger bones when they are older.
How many milliliters of water do we exhale per hour?
Humans exhale up to 17.5 millimeters of water per hour.
How fast can the nervous system transmit signals?
About 80-120 meters per second (179-260 Miles per hour)
How long is the circulatory system if you stretched out all the blood vessels in your body?
reach over 60,000 miles
How do vaccines work to stimulate the adaptive immune system?
Vaccines stimulate the adaptive immune system by introducing a weakened or inactive form of a pathogen (called an antigen) into the body, which triggers the immune system to produce antibodies and memory cells specifically designed to recognize and fight that pathogen, essentially "teaching" the body how to defend itself against a future infection with the live virus without causing illness.