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Human Systems Project- Circulatory and Respiratory System

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Michael Kanner

on 10 June 2013

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Transcript of Human Systems Project- Circulatory and Respiratory System

The Circulatory and Respiratory System Michael Kanner
Seth Kirkpatrick
Matt Kercheff The Circulatory System Arteries Oxygen-rich
Heart to body Veins oxygen-depleted
body to heart Blood
sticky, straw colored fluid
90% water
proteins Plasma Blood Red Blood Cells erythrocytes
transport oxygen to body
red bone marrow
immature RBC's- lots of hemoglobin
transports oxygen, and some carbon dioxide
nucleus and organelles disintegrate during formation
can't divide- limited survival- 120-130 days
over 30 trillion RBC's in body always; 2 million disintegrate every second Blood White Blood Cells leukocytes
formed in red marrow
some must travel to lymph nodes, tonsils, thymus, spleen to mature
1 cubic mm blood:
4 million RBC's
7,000 WBC's
WBC's can double during infection Blood Platelets essential to formation of clot
fragments of large cells formed in bone marrow
no nucleus
life span= 7-12 days
1 cubic mm blood= as many as 500,000 plateletts
tear of blood vessel Blood Platelets Disease- Hemophilia caused by absence of one or more of proteins required for clotting
bleeding continues much longer than in someone without hemophilia
treated with injections of the missing clotting factors Arteries Disease- Atherosclerosis accumulation of fatty materials on walls of arteries
can lead to heart attack, along with blood clot Disease- Peripheral Vascular Disease arteries get blocked- become incapable of supplying blood to organs of the body Blood Blood Types determined by type of antigen present on surface of RBC's
antigen stimulates immune response The Respiratory System Pneumoconiosis abnormal condition of dust in the lungs
condition where toxic particles become trapped in lungs and cause “black lung” or “miner’s lung” disease.
Prevent by avoiding dust, especially that of coal The Respiratory System Asthma chronic inflammatory disorder of airways
episodes of reversible breathing problems due to airway narrowing and obstruction
range in severity from mild to life threatening.
symptoms: wheezing, coughing, chest tightness, and shortness of breath The Respiratory System Emphysema (COPD) Chronic Obstructive Pulmonary Disease
progressive destruction of air sacs in the lungs
loss of respiratory membrane for oxygen exchange
bane of long term smokers. The Circulatory System Hormones Arteries Blood Pressure the force blood exerts against inside of blood vessel Hypertension high blood pressure
increases chance of blood vessel bursting
leading cause of death
caused by: too much salt or alcohol, overweight, smoking, age, stress, genetics The Heart The Cardiovascular System The Lymphatic System Function Functions transport nutrients, hormones, and gases
get rid of wastes
help maintain a constant body temperature return fluid from tissues to bloodstream lymph=excess fluid in tissues
no pump-lymph must be moved by skeletal muscles squeezing
vast network throughout body
lymph passes through lymph nodes on way to heart small organs that filter out foreign particles, microorganisms, and other tissue debris
store lymphocytes
WBC's specialized to fight disease
may become swollen when a person has an infection
increased number of lymphocytes Lymph Nodes transport hormones to body
regulates heart rate and blood vessel diameters
medical uses:
anaphylaxis reactions, asthma, cardiac arrest
increased heart rate and constricted blood vessels=help recover Circulation Patterns pulmonary circulation
systemic circulation
coronary circulation
hepatic portal circulation
renal circulation Hormones Urban Myths/Legends
Full transcript