Skeletal Function & Bone Types
What percent of your body is bone?
about 15%
What shape are short bones? Give an example
What are joints?
Where two bones meet.
How many different kinds of moveable joints are there?
six
How many bones do humans have as an adult? How many as an infant?
What is the main organ of the skeletal system?
bones
What shape do irregular bones have? Give an example.
complex shape. Vertebrae, pelvis
What prevents bones from rubbing against each other?
cartilage
List the different kinds of moveable joints.
ball and socket, hinge, pivot, gliding, saddle, ellipsoid.
What bone is not needed for support in the lower leg?
fibula
What kind of tissue is bone made out of?
Osseous
What do flat bones do for our bodies? Give me an example.
protect vital organs. Cranium, ribs, sternum
What connects bone to bone? What connects muscle to the bone?
Ligaments- bone to bone
Tendons- muscle to bone
What kind of joint allows you to bend over and nod your head?
What protects our heart and lungs?
Rib cage
Name the types of bones and give an example of each
Long - Femur, tibia, fibula, radius, ulna Short - tarsals and carpals Flat - Ribs, sternum, Scapula, Cranium, Irregular -pelvis, vertebrae Sesamoid - Patella
What do sesamoid bones do? Give an example.
lessen/take away some stress from ligaments and tendons.
What are the three different kinds of joints and the movements they allow?
Immoveable- very little or no movement
Semi-moveable- slight movement
Moveable- wide range of motion/a lot of movement
What joint moves back and forth, in one direction. Name two locations in your body where these joints are found.
hinge. Elbows and knees
What is the outter most layer of bone called?
Periosteum
What are the six functions of the skeletal system?
Provide structure and support, allow movement, protect vital organs, produce WBC, RBC, and platelets, Store and regulates minerals and hormone control.
What do long bones do for the human body?
Provides support/supports weight, gives body shape, and allows movement.
Give examples of where you can find each of the three types of joints.
immoveable- cranium
semi-moveable- tibia and fibula
moveable- shoulder, pelvis...
What kind of joint allows you to move front and back and side to side. Where is it located in your body?
Ellipsoid, wrist or fingers and toes
Name and locate 10 bones in the body.
Skeleton