Skeletal System
True or False: One function of the skeletal system is to give us shape.
True
Why is it better to breathe through your nose than your mouth?
The nose has cilia which helps clean or filter the air
What is the main organ of the circulatory system? What does it do?
The heart - pumps blood
True or false: Skeletal muscles are involuntary
False
Where is the smallest bone in our body located?
Our ear
After traveling down the esophagus, food stops here and is mixed with strong acids.
What is the stomach?
Running parallel to the food tube, this pipe brings oxygen to the lungs.
What is the trachea?
What are capillaries?
Blood vessels that exchange oxygen and carbon dioxide
What are the 3 types of muscles?
Smooth
Skeletal
Cardiac
A set of arcing bones that protect the heart and lungs.
What is the rib cage?
This is where water is absorbed and liquid waste turns into solid waste.
Large intestines
The muscle responsible for expanding and contracting the lungs.
What is the diaphragm?
How many chambers are in the heart?
4
What is an example of a smooth muscle?
Muscles in the esophagus, stomach, or intestines
Name 4 functions of the skeletal system?
To provide structure, hold us up, allow movement, and protect the bodies organs.
What is the purpose of the digestive system?
To absorb nutrients from food, and get rid of waste.
What is the purpose of the respiratory system?
To fuel the body with oxygen and remove carbon dioxide.
What is the difference between veins and arteries?
Arteries are blood vessels that carry blood AWAY from the heart
What connects muscles to bones?
Tendons
What is the strongest bone in your body?
The femur (in your leg)
What are the small hair like projections in the small intestines and what do they do?
Villi - absorb nutrients
There are about 300 million of these in each lung. They fill up with air.
What is alveoli?
Red Blood cells, plasma, white blood cells, and platelets are all parts of blood. What does each part of blood do?
Red Blood cells carry oxygen and carbon dioxide
Plasma carries nutrients and water.
White blood cells help fight infections.
Platelets help restore damaged blood vessels by patching them up.
How do skeletal muscles cause movement?
They PULL on your bones by contracting (getting shorter) and relaxing.