Thursday, December 22, 2005

Winter exam recup

Since people do not seem to be showing up for recup, I am posting VITAL information here!!

Things to know for your exam:

DIAGRAMS to know for the exam!
Page 102 The formed elements of the blood
Page 108 The components of blood and their functions
Page 110 The circulatory system: Know where the blood with O2 is and where there is blood with CO2
Page 112 Pulmonary and systemic circulation-
Page 127 Blood types
Page 128 Slides of blood type testing
Page 130 Sample question about transfusions
Page 131 Rhesus factor in Mother and Fetus *** Just know that there is a problem if a MOTHER is RH- and her child is RH+

Page 109 The chambers of the heart diagram will appear on the exam. You need to label: the vena cava, aorta, pulmonary artery, right and left atrium, right and left ventricle. For the exam, you also need to know WHICH parts are carrying blood with O2 (the red parts) and CO2 (the blue parts)

For a good diagram of this online:
The heart: Oxygen and Carbon Dioxide in the blood (O2 and CO2)
This diagram really shows you where the blood with blood is coming from and going.

For a diagram VERY close to the one that will be on your test, check out this link below:
Heart diagram like one on exam
BUT REMEMBER: You only need to label the superior (at the top) vena cava, aorta, pulmonary artery, right and left atrium, right and left ventricle, inferior (at the bottom) vena cava.


Red blood cells
- Red blood cells are produced in the marrow of the bone
- Hemoglobin is the substance that makes them red
- they cannot reproduce

They are the TRANSPORTATION SYSTEM of the body. They move nutrients and O2 throughout the body.

White blood cells
- they are larger then red blood cells
- they are colourless
- they CAN reproduce (they have a nucleus)
- can phagocytize (eat up old or dead cells and bacteria)
- produce antibodies

They are the protectors of the body, they FIGHT to keep you healthy

Platelets
- are the remains of blood cells

Plasma
- keeps blood flowing
- it is the FLUID component of blood
- the blood cells float along (mmm, yummy!) in the plasma

Plasma vs Lymph
- PLASMA is the liquid that BLOOD CELLS float in
- LYMPH is the liquid that BODY CELLS are surrounded by

Know the structures of the heart:

Aorta: A main artery, it carries blood WITH O2 from the left ventricle to all parts of the body.
Pulmonary veins: carry oxygen-rich blood from the lungs to the left atrium.
The superior vena cava: carries DE OXYGENATED (no O2) from the UPPER half of the body. Goes through the right atrium to the right ventricle
The inferior vena cava: carries DE OXYGENATED (no O2) from the BOTTOM half of the body. Goes through the right atrium to the right ventricle/
The pulmonary artery: carries DE OXYGENATED (no O2) blood from the right ventricle to the lungs

Pulmonary circulation: when the blood passes from the heart into the lungs, picks up oxygen, and is then circulated back into the heart.

Systemic circulation: blood with oxygen in it passes into the aorta and is then circulated to different parts of the body, all the way down to the tiny capillaries. It picks up CO2 in the capillaries, and the cycle starts again.

Antigens: Germs or disease that invades the body
Antibodies: Produced by the white blood cells to FIGHT INFECTION!!

Universal Donor: Group O-
Universal Recipient: Group AB+

Rhesus factor:
Can be a problem if a MOTHER is RH- and is pregnant with a baby that is RH+. The two types of blood cannot mix, and a mother will produce antibodies against the RH- blood! Review p 131. Drugs can be given to the mother to protect the baby.

Make sure you hand in the questions at the beginning of the exam period!! Answers will be up this evening! Any questions, e-mail me.

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