Muscle Basics
How many muscles are in the human body?
Over 600
What is the function of joints in the human body?
Joints connect bones and allow movement
What are bones primarily made of that give them strength?
Collagen and minerals like calcium
What do bones provide to the body?
Support and shape
What muscle is responsible for blinking your eyes?
The orbicularis oculi
What is the main function of muscles in the human body?
To enable movement by contracting and relaxing
What type of joint is found in the shoulder?
Ball-and-socket joint
Support movement
How do bones protect us?
They shield vital organs
What is the fastest muscle in your body?
The stapedius in the ear
What are the three types of muscles in the body?
Skeletal, smooth, and Cardiac
Which joint in the body acts like a hinge, allowing a back-and-forth movement?
The elbow (hinge joint)
Name one of the four types of bones
Long, short, flat, or irregular
How do bones help us move?
They act as levers for muscles
True or false: Your tongue is the strongest muscle in your body
False
Which muscle type is responsible for pumping blood throughout the body?
Cardiac muscle
Name the joint that connects the skull to the spine and allows the head to rotate?
The pivot joint
Which type of bone protects vital organs?
Flat bones
What minerals do bones store?
Calcium and phosphorus
How fast can the human eye blink?
In about 100-150 milliseconds
Name 1 or more factors out of the 3 things muscles are attached to?
Bones, internal organs, and/or blood vessels
What type of joint is found in the wrist?
Gliding joint
How do bones respond to stress?
They grow and repair
Why are your bones still working even when you are resting?
They support the body's weight and maintain posture
What muscle in your body never rests, even when you're asleep?
The heart (cardiac muscle)