Week 1 Cardio Flashcards
Right atrium is from the
Body
left atrium is from the
Lungs
Right ventricle is out to the
lungs
left ventricle is out to the
body
tricuspid valve is located
on the right side
the bicuspid valve is between
on the left side
the pulmonary semi-lunar valve is on the
right side
the aortic semi-lunar valve is on the
left side
circulation cycle
heart – aorta – artery – arteriole – capillary –
venule – vein – vena cava
more than half the bodys blood volume is
plasma
mostly water with electrolytes and proteins
the liquid in plasma
most abundant protein in plasma
albumin
keeps fluids in the vessels
albumin
binds with hormones and certain drugs
albumin
ANTIBODIES or Ig
immunoglobulins
active defense against viruses, bacteria, fungus and cancer cells
immunoglobulins
40% or so of Blood volume
Erythrocytes aka RBCs
Erythrocytes contain what that make the blood red?
Hemeoglobin
gives blood its red color
* allow blood to carry oxygen and carbon dioxide
Hemoglobin
1 WBC =___ RBC
650
Leukocytes aka WBCs defend the body against infecHon, five main types
Neutrophils, lymphocytes, monocytes, eosinophils, basophils
Leukocytes
WBC
most numerous
– kill and ingest BACTERIA & FUNGI as well as foreign debris
Neutrophils
– T cells and Natural Killer Cells: protect against VIRUSES and destroy some
CANCER CELLS
– B cells: develop into cells that produce anHbodies
Lymphocytes
– ingest dead or damaged cells
– help defend against many infecHous organisms
Monocytes
– kill PARASITES and destroy CANCER CELLS
– involved in ALLERGIC RESPONSES
Eosinophils
– also involved in ALLERGIC RESPONSES
Basophils
Thrombocytes are
platelets
cell-like particles, smaller than RBCS and WBCs
platelets
1 platelet = ___ RBCs
20
help in clotting process
* form the plug that seals the vessel
* release substances that promote further clotting
Platelets
deals with DEoxygenated blood that needs to go to the lungs for a refresher
Right side heart
deals with oxygenated blood the needs to get out to the body
Left side heart
Superior aspect of heart
Atrium
Inferior aspect
ventricle
receives the blood from either the body (____) or the lungs
(____)
Atrium
Right then left atrium
pushes the blood back out to either the lungs (_____) or
the body (_____)
Ventricle
Right then left ventricle
the ___________ wall is thicker than that
of the right
left ventricular
What prevents black flow?
valves
Blood comes into the body via the _____? What is this located between?
superior vena cava tricuspid valve
Located between the right atrium, and the right ventricle
Which valve is between the left atrium and the left ventricle?
The bicuspid valve
Which valve is Located between the right atrium, and the right ventricle?
tricuspid valve
Which valve is between the right ventricle and the pulmonary artery?
pulmonary semi lunar valve
Which valve is between the left ventricle and the aorta?
aortic semi lunar valve
Does a vein or artery carry deoxygenated blood?
veins
Does a vein or artery carry oxygenated blood?
artery
Blood Vessel layers
- Endothelial lining
- An elastin/connective tissue layer
- A smooth muscle layer
- A loose fibrous connective tissue sheath
Veins have ______ to prevent back flow
valves
________have more connective tissue layers and a much thicker smooth muscle
layer as well as an outer layer of epithelium wrapping it all up
arteries
where the blood slow down enough that gas exchanges can occur
capilaries
Order of the electrical conduction system
SA- sinotrial node
Internodal pathways in the atrial walls
AV atrioventricular node
Bundle of AV bundle
Right and left bundle branch
Purkinjie fibers
Where does action potential originate?
SA node
Where are Internodal pathways
in the atrial walls
where does action potential pass slowly
AV node
Purkinjie fibers are where?
ventricle walls
Electrical conduction still life EKG
PQRST
atrial depolarization
P wave
Ventricle depolarization
QRS complex
time between onset of Atrial depolarization and Ventricular
depolarization
PR interval
onset of Ventricular depolarization and end of Ventricular
Depolarization
QT interval
time of completed Ventricular depolarization
ST segment
Ventricular repolarization
T waves
