20 Questions
Which type of skeleton forms the central axis of the body?
Axial skeleton
What is the longest and biggest bone in the human body?
Femur
How many bones are there in the human skeletal system?
206 bones
Which type of bone forms the hard, outer shell of bones?
Compact bone
What is the function of the skeleton in the human body?
All of the above
Which bone is responsible for the pivot joint in the neck?
Atlas
Which type of cell breaks down bone tissue by bone reabsorption?
Osteoclast
Which type of cell regenerates bone tissue by bone deposition?
Osteoblast
What is the main function of bone remodeling?
To regulate the body's calcium levels
Which skeletal differences are commonly observed between men and women?
Men have longer legs and arms
What is the Q angle?
The angle between the thighs and the lower legs
Which type of muscle interacts with bones to produce voluntary body movements?
Skeletal muscle
Which step in muscle contraction involves myosin changing shape and pulling actin toward the center of the sarcomere?
Step 7
What happens when an action potential travels down a motor neuron to a muscle cell membrane?
Myosin is released from its binding on the actin filament
What is the role of ATP in muscle contraction?
ATP binds to myosin
Which hormone is responsible for the differences in muscle mass between men and women?
Testosterone
What is the main symptom of muscular dystrophy?
Skeletal muscle weakness
What happens when myosin head binds to an actin molecule in muscle contraction?
The muscle fiber shortens
What causes the death of muscle cells and tissue in muscular dystrophy?
Defects in muscle proteins
What is the purpose of ATP in muscle contraction?
ATP binds to myosin
Test your knowledge of the skeletal and muscular systems with this quiz! Explore topics such as the axial and appendicular skeletons, bones, cartilage, and more.
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