The Skeleton
This part of the skeleton includes the skull, ribs, and vertebral column.
Axial skeleton
The only type of muscle that is voluntary (you can control it).
Skeletal muscle
The outermost, waterproof layer of the skin.
Epidermis
This tough connective tissue connects BONE to BONE.
Ligament
The main way the muscular system and skeletal system work together.
Muscles pull on bones (to create movement)
This soft tissue is found inside bones and is responsible for making new blood cells.
Marrow
This involuntary muscle is found only in the heart.
Cardiac muscle
The pigment produced by melanocytes that gives skin its color.
Melanin
This tough connective tissue connects MUSCLE to BONE.
Tendon
How the integumentary system (skin) works with the nervous system.
Nerves in the skin sense touch/temp/pain
These are the "bone-building" cells that create new bone.
Osteoblasts
The two protein filaments that slide past each other to make a muscle contract.
Actin and myosin
The layer of skin below the epidermis that contains glands, nerves, and hair follicles.
Dermis
The knee and elbow are examples of this type of joint.
Hinge Joint
How the skeletal system (bones) helps the circulatory system.
Marrow in bones creates blood cells
The process where cartilage is gradually replaced by bone.
Ossification
This type of muscle, like your bicep, bends a joint when it contracts.
Flexor
Besides protection, this is one of the five main functions of the integumentary system.
Regulating body temperature
The shoulder and hip are examples of this joint, which allows for the most movement.
Ball and Socket Joint
How the skin (integumentary) helps the excretory system.
Sweat glands release waste
The two main chemical components that make bone both strong (hard) and flexible.
Calcium/Phosphorus and Collagen
The principle that states a single muscle fiber will either contract completely or not at all.
All-or-none principle
This tough, waterproof protein makes up the main structure of your hair and nails.
Keratin
The type of joint that allows bones to slide past one another, found in your wrist and ankle.
Gliding Joint
How the muscular system (diaphragm) helps the respiratory system.
The diaphragm contracts to make you inhale