Transcript Circulatory System

Circulatory
System
Heart Attack and Stroke
Brendan Weibel, Jarrett Bachelor, & Jesse
Rodriguez
Circulatory System
The Circulatory System is the system in the body that
pumps blood throughout the body through Veins and
Arteries
Arteries vs. Veins?
Arteries carry oxygen-rich blood
Veins carry oxygen-poor blood
What are Capillaries?
Capillaries are tiny blood vessels that transfer oxygenpoor blood from Arteries to Veins
Parts of the Heart
Atriums:
Force blood from veins and arteries into
Ventricles
Ventricles:
Force blood into:
Pulmonary artery if oxygen-poor (Right
Ventricle
Aorta if oxygen-rick (left Ventricle)
Blood Vessel Contents:
Red Blood Cells:
Carries oxygen throughout the body and CO2
back to the lungs
White Blood Cells:
Produce antibodies and fight bacteria
throughout the body
Platelets:
Stops bleeding and helps to form scab for
cuts
Plasma:
Maintains blood pressure and helps blood clot
Heart Attack
What is a heart attack?
-The occurrence where the heart slows
down or stops
What are the causes?
-The Coronary artery becomes blocked,
stopping blood flow to the heart
Prevalence of a heart attack
-High blood pressure, high blood
cholesterol, and Diabetes
-Men at the age of 45 and women at the age
of 55 are more susceptible
Heart Attack Continued
Symptoms Include:
-Pain around the center of chest or arm
-Nausea, lightheadedness, or breaking out
in a cold sweat
-Shortness of breath
Treatment:
Drugs- Aspirin, Thrombolytics, Antiplatelet
Agents, Pain Relievers, and Nitroglycerin,
Beta Blockers, and ACE inhibitors
Surgery- Coronary artery bypass surgery
and Coronary angioplasty
Stroke
What is a stroke?
A stroke occurs when a blood
vessel in the brain is blocked (Ischemic)
or bursts (Hemorrhagic)
What systems are affected?
The circulatory system is affected during
a stroke
Prevalence of a stroke?
A stroke is much more likely to occur if
the person has had a stroke previously
Stroke Continued
What is the cause of a stroke? Signs and symptoms?
Ischemic Stroke
Hemorrhagic Stroke Symptoms
Usually plaque
buildup
(Atherosclerosis) in
the arteries.
Bleeding in or around
the brain.
Who is affected?
Trouble speaking,
vision change,
confusion,
numbness, and
loss of movement.
Chances of a stroke are increased for the elderly, women, African Americans,
Native Americans, Alaskan Natives, and generally anyone who is unhealthy.
Stroke Continued
What prevention or treatment is available?
● Control risk factors (high blood pressure, high cholesterol, smoking, etc.)
● Treat medical conditions that can lead to a stroke
● If diagnosed soon enough, medicine can stabilize the vital systems
Important Facts
● Stroke kills almost 130,000 Americans each year
● Every year, more than 795,000 people in the United States have a stroke
● About 87% of all strokes are ischemic strokes, when blood flow to the brain
is blocked
Works Cited
● http://www.webmd.com/heart/cardiovascular-system
● http://www.texasheart.org/HIC/Anatomy/anatomy2.cfm
● http://www.strokeassociation.org/STROKEORG/AboutStroke/TypesofStrok
e/Types-of-Stroke_UCM_308531_SubHomePage.jsp
● http://www.webmd.com/stroke/tc/stroke-topic-overview
● http://www.cdc.gov/stroke/
● http://www.wisegeek.org/what-is-the-difference-arteries-veins-bloodvessels-and-capillaries.htm
● http://www.mayoclinic.org/diseases-conditions/heartattack/basics/treatment/con-20019520