Circulatory
What is the function of the heart?
To pump blood around the body
What gas do we need to breath in for cellular respirtation?
Oxygen (O2)
Digestive enzyme
What gas is removed by the lungs as waste from cellular respiration?
Carbon dioxide (CO2)
True or false - disease causing bacteria and viruses are the same thing
False
What does the circulatory system do?
Carries materials to and from cells throughout the body.
What does the respiratory system do?
Delivers oxygen into the bloodstream
What does the digestive system do?
Breaks down food so that the body can use it's nutrients.
What does the urinary system do?
Removes waste materials
What does the immune system do?
Defends the body against disease.
What brings blood FROM the heart and what brings back TO the heart?
Arteries (FROM)
Veins (TO)
What are the air filled sacs that transfer oxygen to the lungs?
Alveoli
What is the main function of the LARGE intestine?
Absorb water
How many times per day does the kidney filter the blood supply?
60 times
What process prepares the body to fight specific infections?
Immunization
What are the four components of blood?
Plasma, white blood cells, red blood cells, platelets
What substance traps dirt and bacteria so that it does not enter the body through the respiratory system?
Mucus
What stage of digestion includes the small intestine?
Absorption
What are the four excretory organs?
Lungs, skin, liver, kindeys
Spell the strands of DNA in a protective coat that invade cells and cause disease.
Virus
Spell the chemical in red blood cells responsible for carrying oxygen
Hemoglobin
Spell the muscle contracts during inhalation.
Diaphragm
Name all four stages of digestion in order
Ingestion, Digestion, Absorption, Egestion
What are the three major layers of the kidney?
Cortex, medulla and inner renal pelvis
Describe the immune response to a pathogen in 3 steps
1. Lymphocytes recognize pathogen and produce antibodies
2. Antibodies attach to pathogen
3. Macrophage seeks and destroys pathogens marked with antibodies