adapted from: ......the respiratory system provides oxygen needed for cellular respiration and...
TRANSCRIPT
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Adapted From: http://www.newcaneyisd.org/cms/lib5/TX01918142/Centricity/Domain/1395/Human%20Bod
y%20Systems%20PPT.pptx
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1. Digestive 2. Urinary 3. Respiratory 4. Circulatory 5. Skeletal 6. Muscular 7. Nervous 8. Integumentary
9. Immune 10. Endocrine 11. Reproductive
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The Digestive System converts food into simpler molecules that can be used
by cells; absorbs food; eliminates waste.
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Mouth Chew (mechanical digestion) Enzymes in Saliva (chemical
digestion)
Pharynx (throat) Epiglottis
Small flap that closes over the opening of the respiratory system when swallowing, preventing food from entering the airway.
Esophagus Muscular tube connecting the mouth
to the stomach
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Liver Produces bile, a substance that helps
break down fats
Gallbladder Stores bile produced by the liver
Stomach Muscular pouch where muscular
churning and chemical digestion occurs
Pancreas Secretes enzymes to help break
down carbohydrates, proteins and fats
Small Intestine Narrow muscular tube where
digestion is completed with the help of enzymes secreted by the liver and pancreas
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Large Intestine (colon) Muscular tube where water and
salts are absorbed; material spends 18-24 hours here
Appendix Tube like extension off of the
large intestine that provides a safe place for good bacteria
Rectum The last part of the digestive
system, feces are eliminated from the rectum through the anus
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Muscular – contains smooth muscle Nervous – gets signals that control the rate of digestion Circulatory – broken down food travels through blood vessels to cells Endocrine – hormones (ex. Insulin) control blood sugar levels
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The Urinary System filters blood, maintains
electrolyte and fluid homeostasis, and
eliminates waste products from the body
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Kidneys Help maintain homeostasis by filtering
blood to remove waste Nephron
Tiny filter that makes up the kidney, there are millions
Ureters Tubes connecting the kidneys to the
bladder Urinary Bladder
Smooth muscle bag that stores a solution of wastes called urine
Urethra Tube where urine passed out of the
body
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Circulatory – waste products are carried from the cells to the kidney through blood vessels Endocrine – hormones are sent that control water levels and homeostasis Respiratory – expels toxic CO2 out of body
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The Respiratory System provides oxygen needed
for cellular respiration and removes carbon
dioxide from the body
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Nose and Mouth Respiration begins with taking in air
Pharynx (Throat) Larynx
Where your vocal cords are
Trachea (Windpipe) Passes air into the bronchi
Bronchi (singular: Bronchus) Passes air from trachea to the lungs
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Bronchioles Each Bronchus in the lungs
branches out like a tree into bronchioles
Alveoli Sacs at the end of the
Bronchioles where oxygen and carbon dioxide are exchanged
Diaphragm Muscle that enables you to
breathe
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1. Bronchitis – inflammation of the bronchi caused by exposure to tobacco smoke or air pollution A buildup of mucus in the airways
makes it difficult to breath
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2. Asthma – inflammatory condition in which the trachea, bronchi, and bronchioles become narrowed making it hard to breath
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Rescue Inhalers widen the airways to help ease breathing Steroid inhalers reduce the inflammation (goal is to avoid the need of rescue inhalers)
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3. Pneumonia – alveoli swell and become clogged with mucus. This decreases the amount of gas exchange Symptoms include chest pain, fever,
chills, and cough Treated with antibiotic from doctor
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If alveoli are filled with mucus, gas exchange becomes difficult!
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4. Emphysema – disease that progressively destroys the walls of alveoli
Difficulty breathing, chronic cough Symptoms can be treated, but tissue
damage is permanent Almost always caused by smoking!
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Circulatory – brings O2 to the cells and CO2 back to the lungs Excretory – part of the excretory system to get rid of toxic CO2 from the body
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The Circulatory Systems brings
oxygen, nutrients and hormones to cells; removes cell wastes; regulates body temperature
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Coming from the body – carbon dioxide rich
Coming from the lungs– oxygen rich
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Heart The pump that keeps blood flowing
through your body
Blood Vessels Arteries carry blood away from the heart Veins carry blood to the heart Capillaries allow the exchange of water
and chemicals between tissues & blood
Blood Red Blood Cells -carry oxygen to the
body cells White blood cells- defend body against
disease Platelets- Cell fragments needed for
blood clotting Plasma- Fluid portion of the blood
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https://www.youtube.com/watch?v=oHMmtqKgs50
LINK
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Connected to almost all other systems since the circulatory system carries oxygen to all cells
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LINK
I know the accent can be hard to understand for some of you, but use the text writing
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The Skeletal System supports the body; protects
internal organs; allows movement; stores mineral reserves; provides blood
cell formation
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Bones Produce blood cells Red Marrow Produce red and white blood cells
Yellow Marrow Consists of stored fat
Joints Found where two (2) bones meet
Cartilage LINK – download me Surrounds the end on bone to prevent grinding upon another
bone
Ligaments Tough band of tissue attaching one bone to another
Tendons Thick bands of tissue connecting muscle to bone
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Muscular system – bones and muscles work together for movement Circulatory system and immune system – all blood cells (red and white) are made in the bone marrow
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The Muscular System produces movement;
helps to circulate venous blood, moves food
through digestive system
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Cardiac Muscle Makes up your heart, is
adapted to make and conduct electrical impulses
Skeletal Muscle (voluntary muscle) Attaches to and moves bones
Smooth Muscle (involuntary muscle) Found on walls of internal
organs and blood vessels
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Works closely with the: skeletal system Circulatory – brings O2 to muscles and waste products such as lactic acid away Nervous – how muscles contract
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https://www.youtube.com/watch?v=qK3HK8HhHOg&list=PLzFrtkb2sYLA4O61zJu8t0FvzmL4zTKRC
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The Nervous System recognizes and coordinates
the body's response to changes in its internal and
external environments
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Neurons (Nerve Cells) Long cell with 3 regions
1. Cell body 2. Dendrites Receive impulses and
deliver them to the cell
3. Axon Extension of the
neuron that carry impulses away from the cell
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Brain - Control center
Spinal Cord Central Nervous System Made up of the brain and
spinal cord and coordinates your body’s activities
Peripheral Nervous System Made up of the nerves which
carry messages to and from the central nervous system
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The nervous system works with many other systems, but works closely with the: Digestive system Muscular system
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The Integumentary System is the barrier against infections and injury;
regulates body temperature; protects
against ultraviolet radiation
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Skin Epidermis: outermost layer of skin
covers the surfaces of the body Dermis: inner layer of skin
Contains blood vessels, nerve cells, hair follicles, sweat and oil glands
Hair, Skin and Nails Made up of Keratin
Pigment of skin and hair Controlled by melanin
Sweat Produced to help maintain homeostasis
Oil Glands
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The integumentary contains blood vessels and nerves
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The Endocrine System controls growth,
development, and metabolism; maintains
homeostasis
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Don’t worry about learning negative feedback…focus on the basic process of the endocrine system
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Hypothalamus Part of the brain; the main
link between the endocrine and nervous systems
Pituitary The main gland of the
endocrine system. Produces chemicals and
stimulates glands when there are changes in homeostasis
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Thyroid Produces thyroxin, the
main growth and metabolic hormone
Also regulates calcium levels in the blood
Parathyroid Regulates minerals
(phosphates, calcium, & vitamin D) by producing PTH (parathyroid hormone)
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Adrenal Glands Prepare the body
for stress by releasing hormones
Adrenaline increases blood pressure and heart rate
Regulates salt and water balance in the body
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Pancreas Produces insulin
hormone that helps store excess sugar in the blood
Produces glucagon hormone when there is NOT enough sugar in the blood to maintain homeostasis
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The Immune System helps protect the body from disease; collects excess fluid from blood vessels
and returns it to the circulatory system
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Lymph: fluid with white blood cells that circulates, cleans, and drains Lymph Nodes/Glands: filters out bacteria and other antigens (bad guys); they swell during this process
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Spleen: another filter; red blood cells are recycled, platelets are stored, lymphocytes (type of white blood cell) are created Thymus: develops and prepares the T-cells which helps fight antigens; this slowly turns into fat as you age
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Adenoids – tissue in the back of the nasal cavity; helps capture bacteria and viruses & white blood cells attack them; most useful when you’re younger & shrink as you age Tonsils – found in the back of the throat; similar to adenoids in function and are less useful after age 3
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Innate System Level 1 - Skin & Mucous Membrane
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Dead skin cells are constantly sloughed off, making it hard for invading bacteria to colonize.
Sweat and oils contain anti-microbial chemicals, including some antibiotics.
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Mucus contains enzymes that destroy bacterial cell walls.
The normal flow of mucus washes bacteria and viruses off of mucus membranes.
Cilia in the respiratory tract move mucus out of the lungs to keep bacteria and viruses out.
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Innate System Level 1 - Skin & Mucous Membrane Level 2 – Bad guys (antigens) get past
level 1 & white cells kick into gear
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1. Neutrophils (type of white blood cell) is first to arrive, eats the antigens & then die – that’s what puss is
2. Monocyte – eat the antigens but don’t die 3. Natural Killer Cells (type of Lymphocyte)– will kill
antigens or cells that have gone bad (cancer) by stabbing and poisoning
4. Histamine (Hormone stored in cells) causes Inflammation - redness, swelling, heat and pain
5. Fevers help the cells so they can repair themselves faster
6. Swelling is part of the process to help clean up the antigens
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Innate System Level 1 - Skin & Mucous Membrane Level 2 – Bad guys (antigens) get past
level 1 & white cells kick into gear
Adaptive System B-Lymphocyte (B-cell) – marks antigen for
death using antibodies T-Lymphocyte (T-cell) – multiplies and kills
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B-Lymphocyte Floats around in the lymphatic system Makes Antibodies Antibodies mark the antigens to be killed Antibodies can also free float and block
but can’t kill Antibodies can be created by vaccines
(exposure to weak or dead viruses) Immune donors can temporarily help to
kill antigens (ebola)
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T-Cells (type of lymphocytes): floats around, antigen is recognized by the antibody, t-cells multiply, stabs and poisons
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The immune system works closely with the circulatory system
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https://www.youtube.com/watch?v=0NGei3H8yRk