Majority of heart is positioned in __ and __chest

(a)  

Apex of heart should be directed toward (a)  

Base of heart lies horizontal to (a)  

Blunt rounded point of cone

(a)  

Flat part at opposite of end of cone

(a)  

a membrane, or sac, that surrounds your heart. It holds the heart in place and helps it work properly

(a)  

This serous membrane of smooth outer surface of heart

(a)  

Middle layer composed of cardiac muscle cell and responsibility for heart contracting

(a)  

Smooth inner surface of heart chambers

(a)  

1

(a)  

2

(a)  

3

(a)  

• Superior vena cava

• Pulmonary veins

• Inferior Vena cava

(a)  

• Aorta

• Pulmonary trunk

(a)  

Appendages

(a)  

• Filling chambers of the heart

Two upper chambers • Right and left

(a)  

• The atria are separated by a partition called (a)   septum

• Superior portion of each atrium has a small triangular extension called appendage or (a)  

• Within appendages and extending out to anterior surfaces of atria are (a)   muscles

Connected to two great veins: IVC and SVC

(a)  

Receives deoxygenated blood from the body via the SVC, IVC, and coronary sinus

(a)  

Receives four pulmonary veins

(a)  

Receives oxygenated blood from the lungs via the pulmonary veins

(a)  

Receives deoxygenated blood from the right atrium via the right atrioventricular office and sends it to the lungs via the pulmonary trunk

(a)  

Receives oxygenated blood from the left atrium via left atrioventricular office and sends it to body via aorta

(a)  

Two lower chambers • Right and left

(a)  

Pumping chambers of the heart

(a)  

The ventricles are medially separated by (a)   septum

Ventricles have (a)   walls when compared to atria

Left ventricle is almost (a)   times thicker than right

Left myocardium is relatively (a)   than the right ventricle

Right ventricle is also more trabeculated than left and contains (a)   prominent muscular bands

1. Parietal band

2. Crista supraventricularis,

3. Septal band

4. Moderator band

On external surface of heart, ventricles are separated by anterior and posterior (a)  

Ventricles are separated from the atria by:

(a)  

are grooves that contain coronary vessels, all of which are embedded in fat

(a)  

(a)   are located between atria and ventricles and are anchored at one end to annulosus fibrosus

• Tricuspid
• Bicuspid or Mitral

(a)  

• Aortic
• Pulmonary

(a)  

Prevent blood from flowing back

(a)  

Right AV valve

(a)  

Contains three leaflets

• Anterior

• Posterior

• Septal

(a)  

Left AV valve

(a)  

Two leaflets

• Anterior • Posterior

(a)  

Located at junction of left ventricle and aorta

(a)  

Contains three cusps

• Right coronary

• Left coronary

• Noncoronary

• Located at junction of right ventricle and pulmonary artery

• Contain three cusps

• • Anterior

  • Right

• • Left

pump deoxygenated blood to lungs and oxygenated blood to vessels and tissues of the body

(a)  

Blood returning from upper portion of body enters right atrium via (a)  

Deoxygenated blood from lower body enters right atrium by way of:

(a)  

Deoxygenatedbloodfrom heart itself through coronary sinus enters:

(a)  

• From Right atrium, oxygen- depleted blood flows through Tricuspid valve and into (a)  

• Right ventricle then pumps blood past Pulmonic valve and into (a)  

• Main pulmonary artery bifurcates into __ and __ pulmonary arteries

• Pulmonary: These in turn enter each of the (a)   , where blood is reoxygenated in pulmonary circuit

• Oxygenated blood is returned from lungs to Left atrium through four

• Blood then passes from Left atrium, through Mitral valve, and into __ __

• Left ventricle then pumps blood past Aortic valve and into (a)  

• From here, oxygenated blood is distributed to heart and rest of body through arterial system; this is start of (a)  

where small fetal vessels on surface of villi are bathed by maternal blood.

(a)  

Umbilical veins return (a)   blood from placenta

Less oxygenated blood from superior vena cava and small portion of blood from IVC empty into right atrium and into right ventricle

(a)  

• At the entrance of the liver, the umbilical vein branches into theductus venosus, which is the first shunt in the fetal circulation

The __ __ RT and LT are major blood vessels in your body, supplying blood to the heart

(a)  

They make it possible for the heart to beat and pump blood throughout the body

(a)  

 These arteries and their branches supply all parts of the heart muscle with blood.

(a)  

Origin of coronaries is the (a)   just posterior to valve in region of right and left sinuses of Valsalva

Heart also has a venous system that courses over its surface and drains into (a)  

Pressure in ventricles is greater than that in atria; AV valves close, semilunar valves open, and blood is ejected from ventricles

(a)  

Atria contract, forcing AV valves to reopen and remainder of blood in atria to be propelled into ventricles

(a)  

is most echogenic structure of the heart and is often seen as bright or white color

(a)  

Blood or any other fluids appear (a)   or black

(a)   and papillary muscles are homogeneous and appear medium gray

Thin, mobile leaflets, or (a)   cusps, have slightly increased echogenicity when compared with heart muscle

The arrow is pointing to the:

(a)  

The arrow is pointing to the:

(a)  

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2

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2

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2

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RV

(a)  

AV

(a)  

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