Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Circulatory System

Chap.6

QuestionAnswer
Heart Structure Layers Chambers Valves Coronary Arteries
Layers of Heart (3) Epicardium -Thin outer layer Myocardium -Middle Muscle layer Endocardium -Inner layer lining the circulatory system
Chamber of Heart (2) Atria -Upper Ventricles -Lower
Right Atrium Receives deoxygenated blood from body via superior & inferior vena cava
Right Ventricle Receives blood from the right ATRIUM & pumps to LUNGS
Left Atrium Receives oxygenated blood FROM lungs
Left Ventricle Receives Blood from left ATRIUM & pumps to the AORTA
Valves Atrioventricular -Enters to the ventricles -Tricuspid -Bicuspid / Mitral Semilunar Valve -Exits the ventricles -Pulmonary -Aortic
Coronary Arteries Branch off the Aorta to feed Heart (L & R)
Pulmonary Circulation -Carries blood from heart to lungs -Reoxygenates blood
Systemic Circulation -Carries oxygenated blood along with nutritions to all cells of body - Removes waste products from all cells
Blood Vessels Arteries Veins Capillaries
Blood Vessels Structure Layers * thicker in arteries than veins -Tunica Adventitia OUTER LAYER Made up of connective tissues -Tunica Media MIDDLE LAYER Made of smooth muscle tissues & some elastic fibers -Tunica Intima INNER LAYER/ LINING
Arteries -Carry blood AWAY from heart -Under pressure from ventricular contractions -Pulse distinguishes arteries from veins
Veins -Returns blood TO heart -Carries deoxygenated blood (Bluish-Red) -Walls thinner -- collapsing
Lumen Internal space of a blood vessel through which blood flows
Valves -Venous valves = thin -Valves help keep blood flowing toward the heart by allowing blood to flow in one direction
Capillaries -Microscopic -One cell thick -Connects veins & arteries -Blood is a mixture of venous and arterial blood -Thin walls = exchange of O2 and nutrients for carbon dioxide and waste
Major Veins in Antecubital Fossa 1. Medial cubital 2. Cephalic 3. Basilic
Medial Cubital Middle -Large - Well-anchored -Closer to surface -least painful
Cephalic Thumb -Fairly well-anchored -Difficult to palpate
Basilic Pinky -More Painful -Above brachial & next to median cubital nerve -Easy to find-- not well anchored
Blood Specimen -Plasma-Fluid from whole blood specimen -Serum- Fluid after blood clots -Whole Blood- Blood in the same form found as in the body
Plasma -Will separate in 3 layers -Clear - slightly hazy, yellow -Plasma contains Fibrinogen & other coagulation factors -Used for coagulation test -No anticoagulant added to blood- will lcot
Serum -Blood will clot within 30-40 mins. -NOT used in coagulation test -clear, pale, yellow remains
Whole Blood -Same form from body -Anticoagulant added = blood won' clot -Some test require whole blood ( Mostly-- Hematology [CBC], blood gasses) -Mix at least 2 mins. before testing
Hemostasis -Natural coagulation process -Keep blood within cardiovascular system when injuries to blood vessel walls
Steps of Hemostasis 1. Primary 2. Secondary
Primary Hemostasis Stage 1: Vasoconstriction -Less blood loss Step 2: Platelet Plug Formation -Temporary plug of platelets
Secondary Hemostasis Stage 3: Fibrin Clot Formation -Better plug for bigger injuries that platelets cannot hold Stage 4: Fibrinolysis -Dissolving of the clot after the site has healed
Created by: 1741370178