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Circulatory Sys. OCTC
Heart, and Vessles
31
Biology
Undergraduate 3
10/09/2012

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Cards

Term
What is Cardiology?
Definition
The study of the heart and treatment of its disorders
Term
The cardiovascular system consist of?
Definition
Heart: Muscular pump that keeps blood flowing
BV: Delivers Blood to organs and returns blood to the heart.
Term
Blood vessels include
Definition
arteries, arterioles,capillaries,venules, veins, venea caveae
Term
What carries blood to the heart?
Definition
Veins
Term
What carries blood away from the heart?
Definition
Arteries
Term
The circulatory system consist of?
Definition
Heat, blood vessels, blood
Term
What carries blood to the lungs for gas exchange and eventually returns it to the heart?
Definition
Pulmonary Circuit
Term
The Systemic Circuit?
Definition
Left side of the heart, supplies blood to all organs of the body, parts of the lung, and the wall of the heart itself.
Term
What is the pathway of the pulmonary circuit?
Definition
Right atrium, right AV valve, right ventricle, pulmonary valve, pulmonary trunk, right and left pumonary arteries, lungs, Gas exchange occurs, O2 rich blood returns to the heart via right and left pumonary veins into the left atrium
Term
What is the pathway of the Systemic Circuit?
Definition
Left atrium, left AV valve, Left Ventricle, Aoritc Valve, Aorta, Arteries, arterioles, cappilaries ect.
Term
Great vessels consist of?
Definition
Major arteries and veins entering and leaving the heart.
Term
Aorta, Pumonary trunk, right and left pumonary arteries. these are?
Definition
Great Arteries
Term
Name the great veins?
Definition
SVC/IVC and coronary sinus, right and left pumonary veins
Term
What is enclosed in a double walled sac of a two layered membrane called the pericardium, the outer wall is the periatal pericadial sac.
Definition
HEART
Term
What two layers make up the Periatal Pericardium or pericardial sac
Definition
Fiborus layer; Dense irregular CT
Serous layer; Thin aerolar CT
Term
The visceral Pericardium or Epicardium is formed by what?
Definition
The Serous layer of periatal pericardium which folds back on itself
Term
The pericardial cavity is?
Definition
The space between the visceral and parietal pericardium.
Term
The Pericardial cavity is lubricated with what?
Definition
Pericardial fluid. this fluid allows the heart to beat with minimal friction.
Term
What does the heart wall consist of?
Definition
Epicardium, myocardium, endocardium
Term
Epicardium?
Definition
The visceral pericardium, made up of simple squamous epithelium overlaying aerolar tissue. some places are adipose free and translucent, others have adipose tissue. The largest branches of coronary BV travel through the epicardium
Term
What layer of the heart wall is composed of thick cardiac muscle?
Definition
The myocardkum is the thickest layer. The thickness is proportional to the work load of chambers. The muscles
Term
What enables the myocardial muscle layer to pump blood more efficiently?
Definition
A vortex which exhibits a twisting or wringing motion.
Term
What is the smooth inner linning of the chambers in the heart? What epithelial tissue makes up this layer?
Definition
Endocardium. Simple squamous epithelium which overlies thin areolar tissue. There is no adipose tissue. Endocardium is continuous with endothelium of BV.
Term
WHat are the four chambers of the heart?
Definition
Right and left atria, Right and left Ventricles
Term
The two superior chambers with thin walls that receive blood returning to heart.
Definition
Right and left Atria
Term
What is the small ear like extension that increases the capacity of both atria?
Definition
The auricle
Term
Which Chamber of the heart receives deoxygenated blood from the body?
Definition
right Atrium
Term
Which chamber of the heart receives oxygenated blood from the lungs?
Definition
Left Atrium
Term
WHat separates the right atrium for the left atrium?
Definition
The Interatirial Septum.
Term
What joined the right and left atria of the fetal heart?
Definition
The Foramen Ovale
Term
When does the Foramen ovale seal over in the heart?
Definition
After Birth
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