Chapter 7

The circulatory system is also known as the

Cardiovascular system

The heart pumps deoxygenated blood into the “blank” and oxygenated blood to the “blank”

lungs, entire body

The valves of the heart

keep blood flowing in the right direction

Pacemaker of the heart is

Sinoatrial node

Smallest blood vessels are

Capillaries

These blood vessels almost always carry oxygenated blood

Arteries

Layer in blood vessels made up mostly of muscle tissue and elastic fibers is

Tunica media

Which type of blood vessel can hold 70% of the bodys blood

Veins

What best describes a health palpated vein

bouncy and springy

Formed elements make up

Less than one half of blood volume

The liquid portion of blood is

A combination of water and dissolved substances

What type of blood cell contains hemoglobin

Erythrocytes

Where is blood cells created

Bone marrow

A person with Type A Negative has

Type A antigens, anti-B antibodies and no Rh factor

Who can donate blood to a pt with type AB negative

O negative

Color of venous blood is

deep, dark red

The term that describes the process that keeps blood flowing normally through the body while clotting at the site of an injury

Hemostasis

First defense when a blood vessel is damaged

The blood vessel constricts to reduce blood loss

The complex series of events within the body that relates to blood clotting

coagulation cascade

Blood plasma has this but blood serum does not

Fibrinogen

A specimen containing an anticoagulant additive and not spun is called an

Whole blood specimen

The buffy coat in a centrifuged specimen contains

White blood cells and platelets

Upper chambers of the heart are

atria

What is conducted by the network of specialized tissue in the cardiac conduction system

electrical impulses

Exchanges of oxygen and carbon dioxide and nutrients and waste taken place in areas called

capillary beds

Systemic circulation carries blood

throughout the body

Formed elements compose “blank” of the blood volume

Just under half

B and T cells are variants of

Lymphocytes

Blood types are classified as

A, B, AB, and O

A person who has A postive has

A antigens, B-anti antibodies, and Rh factor

Universal blood donor

O neg

Blood color lightest to darkest

Arteries, capillaries, veins

Devices used to create pulling force

Collection tube emptied of air or a syringe

The enzyme “blank” controls platelet response when a blood vessel is damaged

Thrombin

Process that breaks down a blood clot

Fibrinolysis

Specimen allowed to clot, then centrifuged, what is the liquid portion called

Serum

A buffy coat is formed if the specimen has been

treated with an anticoagulant

If whole blood count is needed the tube needs to have

anticoagulants