The document lists and describes the main bones and muscles in the human body, noting that bones are rigid and muscles are elastic. It provides details on the number of bones kids and adults have, names the longest, heaviest, and strongest bone as well as the smallest bone. The document also specifies the number of teeth kids and adults have and describes how muscles can contract and relax.

1. BONES & MUSCLES

2. BONES
SKULL
TIBIA
FEMUR
ULNA
PELVIS
RADIUS
HUMERUS
RIBS
FIBULA
SPINE
STERNUM

3. MUSCLES
TRAPEZIUS
PECTORALS
DELTOIDS
BICEPS
QUADRICEPS
TRICEPS
GLUTEUS
ABDOMINALS

4. BONES MUSCLES
BONES ARE HARD
AND RIGID.
MUSCLES ARE
SOFT AND
ELASTIC.
KIDS HAVE GOT
OVER 300
BONES.
ADULTS HAVE
GOT 206
BONES.
KIDS AND ADULTS HAVE
GOT 650 MUSCLES.
BONES
JOIN AS
WE
GROW UP
THE FEMUR IS THE LONGEST, THE HEAVIEST AND
THE STRONGEST BONE IN THE HUMAN BODY.
THE STIRRUP IS THE SMALLEST BONE IN THE
HUMAN BODY. IT’S IN THE EAR.
MUSCLES CAN CONTRACT AND
RELAX.

5. KIDS HAVE GOT
24 TEETH.
ADULTS HAVE
GOT 32 TEETH.
TEETH