Cells to Organisms
What is the smallest unit in the human body that contains all of your DNA?
Cells
What is the key purpose of the circulatory system?
Pump blood throughout the body, deliver oxygen to parts of the body
What is the main organ in the nervous system?
The brain
In the toothpick lab, why could people feel the most difference between single and double toothpick touch on their fingers?
Because there are a lot of nerves in our hands/fingers
What is the only muscle that doesn't tire in the human body
The heart
Organs
What is the key purpose of the muscular system?
Control your muscles
What is the purpose of the nervous system?
In the dive reflex lab, why do mammals heart rates decrease in cold water?
In order to preserve the amount of oxygen in their bodies
How many times do your eyes blink per minute?
About 20 times
What is an example of a human body tissue?
Muscles, skin tissue, smooth muscle tissue, cardiac muscle tissue
What is the key purpose of the respiratory system?
Bring in oxygen into the body, remove carbon dioxide
What is the purpose of nerves in the human body?
Nerves tell muscles what to do
In the dive reflex lab, why might the data have been not correct for everyone? How could have we made this lab better?
People could have been not the same level of relaxed, the LabQuest monitors could have been faulty, etc.
We could have done this lab with people holding their breath AND with the wet, cold towel over their eyes to better simulate the dive reflex.
What percentage of an average human's life do you spend sleeping?
30%
What is the largest organ in the human body?
The skin
How many human body systems are in the human body?
11
The nervous system is broken down into 2 different parts- what are they?
Voluntary and involuntary
Name 3 body systems that were tested by most people's multitasking lab.
Nervous system
Muscular system
Skeletal system
Using your hand or hands, how large is your heart?
What is the most complex organ in the human body?
The brain
Write down as many human body systems as you can think of. Points to the team that writes down the most.
integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems
How many nerve cells (neurons) are there in the human body?
100-110 billion
What is the name of the neuron that sent messages to your muscles during the muscle fatigue lab?
What is your only human body organ that could float on water?
The lungs!