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Skeletal System The function of the skeletal system is to give the body ___________and protects____________ _____________. Without a ____________ _______________, the human body would be __________ and ______________. The skeletal system consists of__________, ___________________, _______________, and _________________. Your skull, a series of______________ ________________, acts like a hard protective helmet for your ______________. The bones, or ____________________, of your spinal column surround your_______________ _______________, a complex bundle of nerves. The skeletal system provides attachment sites for the__________________. How many bones do adult humans have? ______________________. Bones are living structures with _____________ ________________________: ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ A point where two or more bones connect is called a ___________________. There are two different types of joints in the body: ____________________________ (like ball-and-socket, hinge, gliding and pivot joints) ____________________________ (like the bones of the skull and pelvis) which allow little or no movement. You have over _______________ moveable and semi-moveable joints in your body. Circulatory System The circulatory system is responsible for bringing _________________, _____________________, and _____________________ to cells. It’s function is to remove _________________ and regulate __________ _______________________. The heart is central to the human______________________ _______________________; it pushes blood through the body’s network of _______________________ and __________________. Blood is pumped from the heart to the ____________________, acquires ___________________, and releases ______________________ __________________________. The blood travels back to the _________________ and pumps back to the rest of the ____________________. Blood passes the body cells, it transfers _________________ to the cells, and picks up __________________. It returns to the _________________and the process is _______________________. Arteries __________________________________________________________________________________. Veins ____________________________________________________________________________________. Capillaries _______________________________________________________________________________. They are tiny tubes that exchange _____________, _________________ and _________________ between blood and body cells. Pulmonary circulation _____________________________________________________________________. Coronary circulation ______________________________________________________________________. Systemic circulation _______________________________________________________________________. Respiratory System The function of the respiratory system is __________________ in ___________________ from the air and ___________________ _______________________ is expelled from the body. The respiratory system that allows breathing (____________ _________________________) includes the ______________, ____________________, ________________, and ___________________. Respiratory system provides gas exchange between blood and the environment. Although it may seem easier to breathe through the _________________, it is healthier to breathe through the ____________________. The hairs and mucus in the nose (part of the______________ _____________) help filter and warm the air as it comes in. LUNGS- ________________________________________________________________________________. The diaphragm is a __________________beneath the ____________ that helps move air in and out of the body. Muscular System The _______________ muscles in the body, both_____________________ and_______________________. Voluntary muscles _______________________________________________________________________. Involuntary muscles _____________________________________________________________________. We can not control our ___________________________ muscles. Muscle contracts to move ________________and __________________ ________________________. Muscles look either _____________________ or ____________________________. Striated muscle ___________________________________________________________________________. Smooth muscle _________________________________. Cardiac muscle is unique in the human muscular system because it is made of________________________ and _______________________muscle, controls the ___________________, and is ____________________________. Function: Controls movement of internal organs such as the ______________, ____________________, _____________, and ________________________________ _______________________________. Controls contractions of the ________________________________. Works with skeletal system to_____________________ ________________ __________________________. Skeletal muscles work in _______________. When one ______________________, the other _____________. They are attached to bone by bands of tissue called ___________________________. Helps circulate _______________ and move _____________ through the ________________ _____________. Nervous System The ____________, ____________ ___________, and a network of __________ (peripheral nervous system) receive messages from inside and outside the body and transmit instructions about how to ______________.. The nervous system is the____________________ ___________________ _________ _______ ___________; it interprets the senses and enables you to respond. ___________, ____________, ____________, ___________, and ____________ are controlled by this system. Things to know about the nervous system: A neuron (nerve cell) is ______________________________________________________________________. A response that is made automatically is a ___________________. Your spinal cord is made of bundles of__________________ that carry impulses from all parts of the body to the brain and from the brain to all parts of your body. Digestive System. The digestive tract _______________________________________________________________including the___________________, the____________________, and small and large__________________________. An adult's digestive tract is about_________________feet long. The digestive system breaks down food two ways: mechanical digestion- _____________________________________________________________________. chemical digestion- _______________________________________________________________________. This occurs in the mouth, stomach and small intestines. Immune System Your immune system is like an army that protects you from____________________. Your skin is the first wall of protection against disease causing agents called ________________________. The second line of defense are fluids like mucus found in your ______________________ ______________ and tears from your __________________. If the pathogens do pass through these_________________, there is an army battalion of _____________ _____________ ________________and their weapons that fight the germs. _________________ ______________________is the soft tissue found in the hollow interior of bones. It is the place where most new blood cells are produced. Thymus is an ___________________________________________________________________________. It is of central importance in the maturation of T cells. __________________________is an organ of the upper abdomen, where it functions in the destruction of old red blood cells and holding a reservoir of blood. Lymph Nodes ____________________________________________________________________________.