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Skeletal & Muscular System
Intro to skeletal terms, joints and muscles
40
Science
3rd Grade
02/23/2015

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Term
skeletal system
Definition
A group of bones that give your body structure, let you move in many ways, and protect your internal organs.
Term
skull
Definition
Many connected bones that protect the brain.
Term
spine
Definition
The is made of 33 disk-shaped bones called vertebrae.
Term
vertebrae
Definition
Bones that protect your spinal cord, hold the body up straight, and allow the neck and back to bend.
Term
ribs
Definition
Many bones that together, protect your lungs.
Term
sternum
Definition
The bone that protects your heart.
Term
scapula
Definition
The large, triangular bone that connects your humerus to your clavicle.
Term
humerus
Definition
The long bone in the upper part of the arm that runs from the shoulder to the elbow.
Term
radius and ulna
Definition
The two bones in the lower part of the arm.
Term
pelvis
Definition
The bowl-shaped bones that support the spine; also protects the soft organs of your lower abdomen.
Term
femur
Definition
The bone in the upper thigh.
Term
patella
Definition
A triangular-shaped bone that protects the knee joint.
Term
tibia
Definition
The bone at the front of the lower leg.
Term
fibula
Definition
The thinner bone of the lower leg that runs alongside the tibia.
Term
spine
Definition
the "backbone"
Term
sternum
Definition
the "breastbone"
Term
scapula
Definition
the "shoulder blade"
Term
pelvis
Definition
"hips" or "hip bones"
Term
femur
Definition
The longest and thickest bone in the body.
Term
patella
Definition
the "kneecap"
Term
femur
Definition
The bone that makes the leg strong and powerful.
Term
joints
Definition
These allow movement by connecting bones together.
Term
three - fixed, hinge, ball-and-socket
Definition
How many types of joints are in the human body? What are they?
Term
fixed joint
Definition
A joint that is fixed in place and doesn't move.
Term
fixed joint example
Definition
(ex. skull bones)
Term
hinge joint
Definition
A joint that allows you to bend and then straighten.
Term
hinge joint example
Definition
(ex. knee and elbow)
Term
ball-and-socket joint
Definition
A joint that allows for lots of movement in every direction.
Term
ball-and-socket
Definition
These joints are made up of the round end of one bone fitting into a small cup-like area of another bone.
Term
ball-and-socket joint example
Definition
(ex. shoulder and hip)
Term
Muscles
Definition
Organs that move bones and other body parts.
Term
muscular system
Definition
Muscles work together as part of the _______.
Term
Three - voluntary, involuntary and cardiac
Definition
How many types of muscles are in the human body? Name them.
Term
voluntary muscles
Definition
Muscles that we control the movement of.
Term
voluntary muscles example
Definition
(ex. arm and leg muscles)
Term
involuntary muscles
Definition
Muscles that we do not control.
Term
involuntary muscles examples
Definition
(ex. stomach, esophagus, intestines, eyes blinking, etc.)
Term
cardiac muscle
Definition
A special involuntary muscle that makes up the heart.
Term
clavicle
Definition
the "collarbone"
Term
cranium
Definition
Another name for the skull.
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