Body Systems Digestive System DIGESTIVE SYSTEM What does

Body Systems

Digestive System

DIGESTIVE SYSTEM What does it do? Digestion is the process by which food and drink are broken down into their smallest parts so the body can use them to build and nourish cells and to provide energy. Common problems/injuries? Heartburn (acid reflux), ulcers, gallstones, IBS, constipation, Crohn’s disease

DIGESTIVE SYSTEM Pharynx Mouth Esophagus Stomach Large Intestine Rectum Small Intestine

Nervous System

NERVOUS SYSTEM What does it do? Sensory neurons take information from the eyes, ears, nose, tongue, and skin to the brain. Motor neurons carry messages away from the brain and back to the rest of the body. Common problems/injuries? Brain tumors, cerebral palsy, epilepsy, concussions, meningitis, mental illnesses, migraines

Nervous System The Nervous System is divided into 2 parts: Central Nervous System Peripheral Nervous System

Central Nervous System Cerebrum – 85% of the brain, controls thinking, long and short term memory. Cerebellum – located at the back of the brain, controls balance. Spinal Cord – connects neurons to the brain

Peripheral Nervous System Made up of hugh network of interconnecting neurons across the body. Cranial Nerve – effects motion and feeling in the face. It does not pass through the spinal cord.

Endocrine System

ENDOCRINE SYSTEM What does it do? The endocrine system helps regulate and maintain various body functions making and releasing hormones. Common problems/injuries? Diabetes, thyroid disorders ENDOCRINE = HORMONES

Endocrine System Pituitary Gland “Master Gland”; controls all endocrine glands Hypothalamus Controls metabolism and homeostasis Thyroid Gland Regulates metabolism Parathyroid Gland Controls calcium in blood and bones Adrenal Gland Controls metabolism and stress responses Pinal Gland Regulates wake/sleep cycle Reproductive Glands Controls sex hormones Pancreas Aids in food digestion and controls blood sugar levels

Respiratory System

RESPIRATORY SYSTEM What does it do? To supply the blood with oxygen. We inhale oxygen and exhale carbon dioxide – this gas exchange is how we get the oxygen to the blood Common problems/injuries? Asthma, bronchitis, emphysema, pneumonia

RESPIRATORY SYSTEM Nasal Cavity is lined with… Cilia Filters the air Mucous Blood air Membranes Capillaries Moistens the air Warms the

Respiratory System A – Lungs I B – Alveoli G C – Nasal Cavity H D – Mouth E – Trachea F – Diaphragm G – Epiglottis H – Bronchia I – Pharynx

Circulatory System

CIRCULATORY What does it do? It circulates blood through SYSTEM the body. This is our “blood pressure, ” which is the contraction and relaxation of our heart muscle. Systole = Contraction Diastole = Relaxation Normal Blood pressure is 120 / 80 Common problems/injuries? Atherosclerosis, high blood pressure, angina, aneurysm, arrythmia

Circulatory System The heart is divided into 4 chambers, right ________ and __________ andatrium the left ___________ and ventricle _____________. atrium ventricle Oxygen poor blood, ______ blood, blue circulates to the right side of the heart, it is sent to the lungs oxygen to get _________. red ________ The _______ blood is then sent back to the left side of the body back through the heart to be circulated ________.

Lymphatic System

LYMPHATIC SYSTEM What does it do? The lymphatic system transports fluids throughout the body. The vessels carry proteins to the lymph nodes, which are filled with white blood cells that kill bacteria and other pathogens, before sending the protein back into the body. Common problems/injuries? Lymphedemia, lymphoma, cancer LYMPHATIC = IMMUNE SYSTEM

We have lymph nodes all throughout our body, what is the largest one?