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Organs and Systems %253A%253Arev%253A%253A-1-%253A%253Aof%253A%253A-Biology/

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Presentation on theme: "Organs and Systems %253A%253Arev%253A%253A-1-%253A%253Aof%253A%253A-Biology/"— Presentation transcript:

1 Organs and Systems http://www.ck12.org/book/Biology/r1/section/21.1/Introduction-to-the-Human-Body%253A-Bones%252C-Muscles%252C-and-Skin- %253A%253Arev%253A%253A-1-%253A%253Aof%253A%253A-Biology/ Video: http://www.youtube.com/watch?feature=player_embedded&v=chqwSh4ii84 http://www.youtube.com/watch?feature=player_embedded&v=chqwSh4ii84

2 Hierarchy of Organization CELLS TISSUES ORGANS SYSTEMS

3 Human Organ Systems http://christinejl89.wordpress.com/

4 Digestive System https://myhealth.alberta.ca/health/Pages/Conditions.aspx?hwid=hw371116 http://www.virtualmedicalcentre.com/uploads/VMC/Anatomy/gastro/gas tro_cross_500.jpg

5 The Mouth & The Esophagus The Mouth Teeth - mechanical breakdown of food Saliva – chemical breakdown of food o Produced by salivary glands in the epithelial tissue The Esophagus Muscular tube – smooth muscle tissue Movement of muscle is controlled by nerve tissue

6 The Stomach Holds and churns the food Epithelial tissue lining secretes enzymes, acid and mucus Nerve signals causes contraction of smooth muscle tissue which continues digestion of food http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookanimalts.html

7 The Small Intestine First part of small intestine: Digestion Accessory Organs: Pancreas, Liver and Gall bladder Second half of small intestine: Absorption o Millions of interior folds – villi and microvilli http://www.bbc.co.uk/schools/ks3bitesize/science/images/villi.gif

8 The Large Intestine Colon, Rectum and Anus Large diameter and shorter length than small intestine Absorb water, vitamins and various salts Remaining solid matter - feces http://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/art icles/image_article_collections/anatomy_pages/intestines.jpg

9 Review – Digestive System http://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapter26 /animation__organs_of_digestion.html http://highered.mcgraw- hill.com/sites/0072495855/student_view0/chapter26 /animation__organs_of_digestion.html

10 Excretory System Removes liquid wastes from the body Absorbed water moves from large intestine (digestive system) into the blood vessels (circulatory system) Blood vessels passes through kidneys for filtration Formed urine is stored in the bladder http://www.encognitive.com/images/urinary-system- 2.jpg

11 Circulatory System Transports materials around the body 3 components of circulatory system: blood, heart and blood vessels http://my.clevelandclinic.org/PublishingImages/heart/heart_blo odvessels.jpg http://images.tutorvista.com/content/transportation/circulatory-system- function.jpeg

12 The Heart Types of tissues – Cardiac muscle, Nervous, Connective (Blood) Contractions of heart pushed blood through the body Valves – Prevent backward flow of blood http://www.heart-valve-surgery.com/Images/Human-Heart-Diagram- Picture.gif

13 Pathway of Blood Flow Deoxygenated blood from body Veins  Heart (Right)  Artery  Lungs Oxygenated blood Vein  Heart (Left)  Artery  Body Review: http://www.youtube.com/watch?v =mH0QTWzU-xI http://www.youtube.com/watch?v =mH0QTWzU-xI Circulation Song: http://www.youtube.com/watch?v =q0s-1MC1hcE&feature=related

14 Open vs. Closed Circulatory System Open o One major blood vessel that carries oxygenated blood to body Closed o Blood stays in arteries and veins http://dtc.pima.edu/blc/182/lesson11/11step3/11step3page1.htm

15

16 Measure your Pulse Activity

17 Capillaries Connects veins and arteries 1 epithelial cell thick Brings blood close to all different cells and tissues throughout the body Deliver oxygen, nutrients and picks up waste from cells and transport it to kidneys and liver http://www.mikalac.com/tech/sci/pho/circulatorysystem.gif

18 Heart Disease and Stroke Causes of Heart Disease Hypertension – High blood pressure Arteriosclerosis - Thickening of arterial walls Heart Attack Long term blockage of blood flow to a portion of heart and thus, damaging it Stroke Blockage of blood vessel in the brain and leading to oxygen deprivation

19 Angioplasty Procedure designed to open a clogged blood vessel Surgeon inserts a tube in the blood vessel and the balloon is inflated Video: http://www.youtube.com /watch?v=S9AqBd4RExk http://www.youtube.com /watch?v=S9AqBd4RExk

20 Respiratory System Responsible for gas exchange in the body o Provides oxygen needed by the body and for removing carbon dioxide produced Works in close collaboration with the circulatory system

21 Respiratory System Air enters through nose, passes epithelial cells with hair-like projections (cilia)and mucus Epiglottis opens so air can go through Air passes through bronchi, bronchioles and ends up in small sacs called alveoli http://samleahey.com/wp-content/uploads/2011/09/respiratory-system- overview-picture.jpg

22 Gas Exchange Each alveoli is surrounded by a network of capillaries As concentration of O 2 is higher in the lungs than blood, O 2 moves into capillaries by diffusion Excess CO 2 diffuses from the cells into the blood, eventually ending up in lungs and exhaled outside Video: http://www.youtube.com/watch?v=Z1h29R82mVc http://www.youtube.com/watch?v=Z1h29R82mVc

23 Smoking Damages cilia Smoke contains over 4000 chemicals, some are carcinogenic High levels of carbon monoxide Contains tar

24 Anatomical Arrangements The interaction between the human skeleton and the muscles attached to it allows us to move parts of our bodies

25 Homework Homework P. 107 # 3 - 7


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