Skeletal and muscular system

what type of muscle does the heart made up off?

• smooth

• cardiac

• skeletal

endoskeleton means ...

• internal bone

• external bone

vertebrate has ........

• endoskeleton

• exoskeleton

the longest bone in human body...

• tibia

• femur

• skull

Bone marrow made ...

• rbc

• wbc

• plamsa

• platelet

Smallest bone

• skull

• earbone

• tibia