bones
osteo
skin
big muscles
small muscles
100

skeleton consisting of head and torso bones

axial skeleton

100

living bone cells

osteocytes

100

outer layer of skin made of dead cells

epidermis
100

muscles you cant control

involuntary muscles

100

tissue that connects muscle and bones

tendons

200
dense strong section of the bone

compact bone

200

bone forming cells

osteoblasts

200

type of cells that make up skin, nails, and hair

keratin

200

muscles that control digestive system

smooth muscle

200

smaller unit of muscle that makes up muscle fiber

myofibrils

300

skeleton consisting of arm and leg bones

appendicular skeleton

300

the formation process of bone

ossification

300

pigment in skin that helps deal with ultraviolet light

melanin

300

muscles that control the heart

cardiac muscle

300

smallest unit of muscle that makes up myofibrils

sarcomere
400

less dense bone with cavities in it for red marrow

spongy bone

400

cells that break down old bone so that new bone can replace it

osteoclasts

400

lair of skin that has nerves, pores, and hair follicles

dermis

400

muscles you can consciously move

voluntary muscles

400

what builds up in muscles during anaerobic respiration

lactic acid

500

tissue that connects one bone to another

ligaments

500

condition where a person has weak and fragile bones

osteoporosis

500

glands attached to hair follicles that create oil

sebaceous glands

500

muscles use to move your arms and legs

skeletal muscles

500

when the muscles are stuck in contraction after death

rigor mortis

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