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I. The skeletal system includes bones and tissues that are important for supporting, protecting, and moving your body.

I. Functions– Framework

and support– Protection– Storage of

minerals such as calcium

– Movement– Production of

blood cells (bone marrow)

– Human Skeletal System

The ______________________ is the central part of the skeleton used to protect vital organs such as the brain, heart, and lungs.

The______________________ skeleton is used for movement and includes the pectoral and pelvic girdle and the extremities attached to them.

The axial skeleton includes ________________________________________________________The appendicular skeleton includes ________________________________________________________

_____________________ is connective tissue between bones.a. cushions bones b. allows for smooth movementc. connect two bones

____________________ are long bands of tissue that connect bones across a joint.

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A. Bones connect to form _______________________ – Joints are places were two bones meet.

B. There are three types of joints.2. ____________________, which allows partial movement3. ___________________which does not allow for movement 4. __________________, which allows for greater movement

There are several types of synovial joints.12345

C.

Bones are living tissue.

1. Bone is made of ___________________ tissue and _____________________ tissue.

2. _____________________ is hard and dense.a. ________________________(bone cells) maintain compact bone

rings.b. _________________________ allow

_____________________________ in the bone.3. ____________________ protects red or yellow bone marrow.

a. ________________________A layer of connective tissue that covers bone

b. _______________________ marrow produces blood cells.c. Yellow bone marrow is mostly ____________________

4. ____________________ is the process of building hard bone.combines collagen and calcium phosphate transforms cartilage into hard bone during childhood

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II. Muscles are tissues that can contract, enabling movement.

1. The muscular system moves substances throughout the body.– bones of the skeletal system– food through digestive system– blood through circulatory system– fluids through excretory system

2. There are three types of muscle tissue.a. ____________________________b. ____________________________c. ____________________________

3. Skeletal muscle attaches to the skeleton by __________________________.a. Tendons connect ______________________________.

4. Skeletal muscles are mostly ______________________________.5. Smooth muscle

a. ____________________________ and is ____________________________________

b. move food through digestive organsc. empty liquid from the bladderd. _______________________________________________

6. ______________________ muscle is found _________________________a. pumps blood throughout bodyb. controlled by pacemakerc. contains more mitochondria than skeletal muscle cells

7. “Most Skeletal Muscles Work in _____________________

a. When one muscle _____________________, the other _____________________________

III. The integumentary system helps maintain ____________________________

1. The integumentary system consists of many parts.a. _________________________________b. __________________________________c. ________________________________d. _______________________________

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e. _______________________________

f. proteins, such as keratin (nails)

A. The outermost layer of the skin is the epidermis.i. ___________________

ii. ___________________iii. ____________________

2. Cells in the epidermis produce keratin and melanina. _____________________makes cells waterproof and tough feeling.b. ____________________is a dark pigment that absorbs UV rays

3. The _________________ contains most of the tissues in the skin.a. _____________________b. ____________________c. _____________________d. ____________________e. ___________________

i. A hair follicle is pit of cells that produces hair.4. The dermis also produces elastin and collagen

a. ______________________ makes skin flexible.b. ______________________gives skin its shape

5. Beneath the dermis is a layer of _________________