Nutrition, Excretion, and Digestion
What is nutrition?
the study of food and how it works in our bodies
What is a muscle memory?
when your body moves without thinking based on memory patterns of doing it over and over before
What are vaccines?
shots of dead germs to trick your body into thinking you're being invaded, so they build an army of antibodies to protect you
oxygen
How many different muscle types are in the human body?
three (cardiac, smooth, skeletal)
Name 3 digestive organs.
liver, gallbladder, stomach, large intestine, small intestine, mouth, teeth, tongue, esophagus
What body parts make up the central nervous system?
brain and spinal cord
What are some ways you can protect yourself from germs?
wash your hands (other answers accepted based on correctness)
What do lungs do?
move oxygen out of the air into the body
What does skin do?
protect you from germs and is a sensory organ for touch
What is the first process in digestion?
the food is ground up by the teeth and tongue then pushed down the throat (esophagus)
What do nerves do?
send messages between the brain and body
What is found inside the nose to help catch germs before they reach the lungs?
hairs and mucus
What controls the heart?
itself
How many bones does an adult have?
206. a child has over 350
What are some foods that are healthy for you?
green veggies, meats, water, milk, fruits (other answers accepted based on correctness)
How does the brain control the body?
chemicals (hormones)
What are germs?
microorganisms that cause disease (virus, bacteria)
What is the path blood takes through the heart, lungs, and body as it beats?
right side of the heart to the lungs to the left side of the body to the right side of the heart
What do bones do?
provide a framework for muscles, create blood in the marrow, and protect squishy organs
Describe the process of urine production.
blood goes into the kidneys, it is filtered, the filtered waste turns into urine, stored in the bladder, then peed out (of the urethra)
What is a reflex?
when your body reacts to a stimulus without thinking about it
What are antibodies?
the army of cells that attack germs after they've been inside your body once
What is the diaphragm?
"hiccup muscle" helps to move the lungs during breathing and separates the upper organs from the lower organs
True or False: the tube in your throat for breathing, and the tube in your throat for swallowing food, are the same tube.
FALSE. the tube for breathing is your trachea and your tube for swallowing food is the esophagus.