Skeletal System
How many bones make up your skeleton?
206
osteoporosis
a condition characterized by brittle and porous bones. it develops because of long-term deficiencies of calcium and certain hormones, insufficient vitamin D, and lack of exercise
marrow
a soft tissue in the center of some bones
Where can you find a pivot joint?
between the neck and head
The Skeletal System is made up of three parts:
bones, joints, connective tissues
What is essential for building and maintaining strong bones?
calcium
What is strong, flexible tissue that provides cushioning at your joints?
cartilage
What are the 3 types of connective tissues?
cartilage, ligaments, and tendons
What is the function of ligaments?
connect bones in each joint
ligaments
cordlike tissues that connect the bones in each joint
Where can you find a hinge joint?
knees and elbows
What helps keep your spine healthy?
good posture while sitting, standing, and walking
What is the function of a gliding joint?
helps bones slide over each other without twisting
What are the 4 types of joints?
hinge, gliding, pivot, and ball-and-socket
What is a tissue in the center of some bones?
marrow
What are the 5 functions of bones?
protect organs, provide support, produce blood cells, provide a strong, stable framework, and store minerals
You should always use _____
protective gear
What are the functions of the skeletal system?
provides a strong, stable framework capable of movement, supports/protects your delicate internal organs, stores minerals (like calcium and phosphorus)
_______ makes millions of bloods cells each day
red bone marrow
What does cartilage do during movement of the joints?
reduces friction
What increases bone mass?
regular physical activity, especially weight bearing exercises (like walking/jogging)
What is a sideways curvature of the spine?
scoliosis
What is an internal system made up of bones, joints, and connective tissue?
skeletal system
Can all joints move?
some joints don't move (like the ones between the bones of the skull), and some only allow slight movement (like the ones between the vertebrae). Mobile joints allow a wide range of movement
______injuries are on the rise for teens.
sports
What are 7 things that the skeletal system allows you to do?
stand up, walk, run, jump, bend, lift, and carry
What are tough bands of tissue that attach your muscles to bone?
tendons
joint
the point at which two bones meet
tendons
tough bands of tissue that attach your muscles to bones
In what ways does physical activity contribute to the health of the skeletal system?
Exercise helps keep the bones strong
What is the difference between ligaments and tendons?
Ligaments are cordlike tissues that connect the bones in each joint, while tendons are tough bands of tissue that attach your muscles to bones
What is the function of a ball-and-socket joint?
allows bones to move in all directions
What are strong cords of tissue that connect the bones in each joint?
ligaments
Briefly describe the difference between the following skeletal problems: dislocation, sprain, and overuse injuries
Dislocation is when the bone is pushed out of the joint (tearing a ligament), while a sprain is when your ligaments are over stretched/twisted, and overuse injuries are injuries caused by the overuse of the muscles.
Jan understands the importance of eating foods rich in calcium. She is allergic to milk, however. What suggestions can you make that might help Jan?
She can have something with phosphorus, magnesium, and vitamin D instead.
skeletal system
a body system made up of bones, joints, and connective tissue
fracture
a break in a bone caused by injury
scoliosis
a disorder in which the spine curves to one side of the body (S/C curved shape) and it can cause back pain and difficulty with breathing. cause of scoliosis is unknown
Name 1 tendon you can feel
a large tendon, your Achilles tendon. It is located on the back of your leg just above your heel.
cartilage
a strong, flexible, gel-like tissue that cushions your joints
What is the function of a pivot joint?
allows movement with limited rotation
What is the function of a hinge joint?
allows the joints to move in one direction
What is the function of tendons?
attach muscles to bones
What is the function of cartilage?
cushions joints
What is a break in a bone caused by an injury?
fracture
Name 6 common skeletal system problems
fracture, dislocation, sprain, overuse injuries, scoliosis, and osteoporosis
overuse injuries
happen over time and make up about half of the sports injuries that occur in teens. EX: shin splint-common among runners or aggressive walkers
What can you do to maintain a healthy skeletal system?
have good nutrition, engage in physical activity, have good posture, and use protective gear for sports/activities that could be dangerous
Where can you find a ball-and-socket joint?
hips and shoulders
What do ligaments do for bones?
hold them in place
What are the points at which bones meet?
joints
What is a condition characterized by brittle and porous bones?
osteoporosis
In addition to movement, what are the other functions of the skeletal system?
supports/protects your delicate internal organs and stores minerals
What should you always do after a sports injury?
take time to heal completely before going back to the sport
What supports your head and upper body and protects your spinal cord?
vertebrae
What is an exercise that increases bone mass?
weight bearing exercise
dislocation
when a bone is pushed out of its joint, usually stretching or tearing a ligament
sprain
when the ligaments in a joint are stretched or twisted and causes swelling
Where can you find a gliding joint?
wrist, ankle, and connect bones in the collarbone
When at a sports practice, what is the risk of doing an exercise the coach said not to do?
you could damage a joint, tendon, ligament, or bone