Bone Basics (Skeletal System)
What are two main functions of the skeletal system?
Support, movement, protection, storage, blood cell production
What type of joint lets your knee bend back and forth?
Hinge joint
What are the three types of muscles?
Skeletal, smooth, and cardiac
What connects muscle to bone?
Tendon
What is the main job of the digestive system?
To break down food into nutrients your body can use
What’s the one thing you should always have ready before a quiz in this class?
The Cheat Sheet
What part of the bone makes blood cells?
Bone marrow
What type of joint allows your shoulder to rotate freely?
Ball-and-socket joint
Which type of muscle is voluntary?
Skeletal muscle
What do we call the system made of muscles and bones working together?
Musculoskeletal system
Where does mechanical digestion begin?
In the mouth (teeth)
What kind of dog does Mr. Estrada have?
Swiss Mountain Dog
What mineral helps keep bones strong?
Calcium
What connects bone to bone?
Ligament
What type of muscle moves food through your body?
Smooth muscle
Why do muscles work in pairs?
One contracts while the other relaxes to create controlled movement
What organ absorbs most nutrients?
Small intestine
What are the names of Mr. Estrada’s tuxedo cats?
Oreo and Domino
What type of bone cell breaks down old bone tissue?
Osteoclast
Which joint lets you shake your head “no”?
Pivot joint (neck)
What type of muscle makes up your heart?
Cardiac muscle
Give one example of a pair of muscles that work together.
Biceps and triceps (arm); quadriceps and hamstrings (leg)
What organ produces bile to help digest fats?
Liver
What does Mr. Estrada like to say to settle things down when class gets started?
“Alright, we are going to go ahead and get started now.”
Explain how the skeletal system would be affected if the body didn’t get enough calcium or vitamin D.
Bones would weaken, become brittle, and risk diseases like osteoporosis
Explain why having different types of joints helps us move efficiently.
Different joints allow a variety of motions suited for different tasks (e.g., bending, rotating, gliding)
Why is it important that cardiac muscle is involuntary?
Because your heart must beat automatically to keep you alive
Explain how an injury to a tendon might affect the skeletal and muscular systems.
Movement becomes limited or painful because muscles can’t pull effectively on bones
Explain what would happen if the small intestine stopped working properly.
stopped working properly.
The body wouldn’t absorb nutrients, leading to weakness and malnutrition
What is Mr. Estrada going to be for Halloween?
Wouldn’t you like to know… just going to have to wait!