Muscular System
What are the muscles in your upper arm that flex your elbow?
The biceps.
What cells transmit signals throughout your body?
Neurons.
What is the bone in your head that encloses your brain?
The skull.
What liquid does the circulatory system transport?
Blood.
What organs absorb the oxygen from the air you breathe in?
The lungs.
What are the three types of muscle tissue?
Skeletal, cardiac, and smooth.
What organ controls the nervous system?
The brain.
How many bones are in a human hand?
27.
What organ in the circulatory system is also a muscle?
The heart.
What is the largest part of the respiratory system?
The trachea.
How many muscles are in the face?
43.
What is the main function of the nervous system?
The main function of the nervous system is to send signals from cells and nerves to the brain, and to other cells.
What is the biggest bone in your body?
What is the main function of the circulatory system?
The main function of the circulatory system is to circulate blood and transport nutrients and oxygen to cells and tissues.
What is the surface area of the lungs?
About 70 square meters.
What is the longest muscle?
What transmits signals from the brain to the rest of the body?
The spinal cord.
What is the smallest bone in the human body?
The stapes.
What are the three main types of blood vessels?
Veins, arteries, and capillaries.
How does your respiratory system allow you to speak?
By vibrating your vocal chords, creating sound.
What is the strongest muscle in the human body?
The masseter.
How many nerves are in an adult human body?
7 trillion.
How many bones are in an average adult human body?
206.
How much blood does your heart pump in a day?
About 2000 gallons.
What are the tiny hairs in your nose that filter out dust?
Cilia.