Newton’s Laws
Which of Newton’s laws best applies to a prosthetic arm?
Newton’s Third Law (every action has an equal and opposite reaction).
What are the three types of muscle?
Skeletal, smooth, and cardiac muscle.
What are key components of prosthetics?
Sockets, joints, cables (or strings), and a structure/frame.
What are phalanges?
The bones in your fingers.
What are veins?
Blood vessels that carry blood back to the heart.
What type of simple machine is our arm?
A lever system.
What type of muscles are used to move your arm?
Skeletal muscles.
What are prosthetic limbs used for?
They help replace missing limbs and help people do daily tasks.
What are metacarpals?
The bones in your hand between your wrist and fingers.
What are arteries?
Blood vessels that carry blood away from the heart to the body.
What is mechanical advantage?
It is how much a machine makes work easier by increasing force or changing direction.
What muscle does a prosthetic arm represent?
Skeletal muscle.
What Newton’s law applies to a prosthetic arm?
Newton’s Third Law.
What are the main bones in the arm?
Humerus, radius, and ulna.
What is bone marrow?
Soft tissue found inside bones.
Why is Newton’s Third Law important for a cardboard prosthetic arm?
When you pull the string (action), the string pulls back with equal force (reaction), making the fingers move.
What are tendons?
Tissues that connect muscles to bones and help movement.
What are osteocytes?
Bone cells that help keep bones strong.
What is the axial skeleton?
The skull, spine, and rib cage.
What does bone marrow produce?
Red blood cells, white blood cells, and platelets.
What simple machine do bones represent?
Bones act like levers.
What are ligaments?
Strong tissues that connect bones to other bones and keep joints stable.
Why are prosthetic arms important in daily life?
They help people complete everyday tasks like holding, lifting, and grabbing objects.
What is the appendicular skeleton?
The arms and legs.
What are the four types of tissue?
Epithelial, connective, muscle, and nervous tissue.