idk man

idk i just got here

aerobic

increase circulatory system ability

alveoli

tiny air sacs

diaphragm

dome shaped muscle below lungs

atrophic

weak undeveloped muscles

biceps brachii

muscle that flexes the arm

scapula

bone in ur shoulder

long bone

found in arms an legs

marrow

fatty system of vessels in bone

short bones

equal in length and width

flat bones

protect vital organs

irregular bones

protect body structure

cartilage

bones connected by joint

immovable joints

bones that cant move

arthritis

diseas to bones