Bones
Muscles that are not under your conscious control
What are involuntary muscles?
Squeezing a clothespin over and over would result in this condition
What is muscle fatigue?
The place inside bones where red blood cells are produced
What is marrow?
The layer of tissue under the skin that keeps you warm, cushions you, and connects the skin to the muscles and bones beneath it
What is the hypodermis?
Bones that are longer than they are wide, containing red marrow at each end and yellow marrow towards the middle.
What are long bones?
Oddly shaped bones like your vertebrae and pelvis
What are irregular bones?