In addition to being a vital organ, the heart is also one of these body parts that you may like to flex.
What is a muscle?
100
It is the duty of the diaphragm to contract and relax in order to allow your body to take in oxygen and remove this from your body through the respiratory system.
What is carbon dioxide?
100
The job of these is to protect the spinal cord, which has a large role in the nervous system.
What are the vertebrae?
100
The majority of the heat that the body creates is caused by muscles doing this 11 letter action.
What is contracting?
100
Carrying food and drink from the mouth to the stomach, this tube works with your brain to control swallowing.
What is the esophagus?
200
When the heart pumps blood, the blood proceeds through many miles of these.
What are blood vessels?
200
Inside the lungs, the alveoli are surrounded by these.
What are capillaries?
200
As you get older, much of the red marrow in your bone cavities has its place taken by this color marrow.
What is yellow?
200
Eight of your muscles have the job of helping your body chew, and every one is connected to this 8 letter body part.
What is the mandible?
200
This part of the digestive system has the duty of breaking down fats, starches, and protein.
What is the pancreas?
300
The approximation for the number of times the heart beats in an average human life could also be represented as 3 times this power of 10, with 9 zeroes.
What is one billion?
300
Some blood from these gives off carbon dioxide that is collected by the alveoli.
What are veins?
300
Among all of your organs, bones contain the most of this nutrient.
What is calcium?
300
This type of muscle under your control is connected to bones and controlled by part of your nervous system.
What is skeletal muscle?
300
Unused material in the digestive system such as food that has not been digested and some cells are forced into this by muscles.
What is the large intestine?
400
These have the job of carrying oxygen to other cells from the lungs.
What are red blood cells?
400
The bronchial tubes enter your lungs after coming off of these tubes with a similar name.
What are the bronchi?
400
This group of bones contains 126 bones in the average adult human skeleton.
What is the appendicular skeleton?
400
This type of muscle existing inside your heart is not under your control.
What is cardiac muscle?
400
Protein in the form of amino acids makes its way into the blood via this.
What is the small intestine?
500
These are responsible for transporting blood in the opposite direction of the heart.
What are arteries?
500
When oxygen first comes into your system via the nose or mouth, it travels through the larynx and this tube that travels into the chest cavity.
What is the trachea?
500
Taking care of, sustaining, and building up your bones are the jobs of three types of cells, osteoclasts, osteocytes, and these.
What are osteoblasts?
500
There are many muscle name roots that describe properties of a muscle such as rectus, meaning straight, teres, meaning round, and this, meaning triangular.
What is deltoid?
500
Liver creates bile, a liquid used for digestion, that when not being used is stored in this.