What is the longest muscle in the body?
Sartorius
How many muscles are in the quadriceps muscle group? Can you name them?
Four. They are the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.
What aspect of muscle structure causes its striated appearance?
Muscle's striated appearance is due to the pattern of sarcomeres aligned end to end within muscle fibers.
What muscle is commonly well-developed in rowers?
Latissimus dorsi.
Fill in the blank. A tendon connects ______ to ______.
Muscle to bone.
Where is synovial fluid found and what's its main function?
Found in the synovial joint cavity. It reduces friction and nourishes the cartilage.
How do fibrous, cartilaginous, and synovial joints differ?
Fibrous joints are immovable (e.g., skull sutures), cartilaginous joints are slightly movable (e.g., spinal discs), and synovial joints are freely movable (e.g., knee or elbow).
What factors affect the stability of a joint?
Joint stability is influenced by bone shape, ligament arrangement, muscle tone, and structures like menisci or fat pads.
What would you find inside the medullary cavity of a long bone?
Bone marrow
What are the functions of the axial and appendicular skeletons?
The axial skeleton provides support and protection for the body's vital organs, while the appendicular skeleton enables movement and interaction with the environment.