the heart is most with its use of?

the endocardial tubes by the 2nd week

primitive heart by the 3rd week

In a fetus the the primitive heart develops into 5 regions  which are?????

• ?
• ?
• ?
• ?
• ?

1. the truncus arteriousus 

2. The bulbus cordis

3. Atrium

4. Ventricle

5. Sinus Venosus

this is a wall that divides the right and left atrium with the foramen ovale

Note : Foramen ovale is a hole in a fetus in an adult its called fossa ovalis

TRUE OR FALSE:

The great veins form from the venous end of the primitive heart?

whats its called when the aortic lumen is narrowed?

[image]

what is called when the you have abnormal blood flow in a baby ..

The opening allows oxygen-rich blood from the aorta to mix with oxygen-poor blood from the pulmonary artery. This can strain the heart and increase blood pressure in the lung arteries.

Patent Ductus anteriosus

Patent means hole[image]

what is it when you have a hole in the your 

divider  upper part of your heart?

[image]

an abonormal opening between the ventricles the thicker part of the wall blood passes  from the left to the right which is allowing the mixing of the blood

[image]

the heart is located obliquely between the lunges in the area known as the????

if your heart is not contracting (systole) then it is relaxed known as Diastole. 

TRUE or Flase

what is this called:

made up of fibrous connective tissue, resembles a bag ( remember the heart cat)

Hint: this covers the heart

Coverings of the heart:

Name the two layers that make up the Serous pericardium

-        Visceral/ epicardium layer which is stuck to the myocardium which is the heart muscle covering it…

Parietal layer is right under the fibrous but in between the visceral and parietal is fluid called pericardial fluid

When the heart does the Following is it called? 

 pressure on the heart muscle which occurs when the pericardial space fills up with fluid faster than the pericardial sac can stretch.

the heart wall:

the epicardium is also known as the ________and is located in the ____________

Visceral

is located in the serous pericardium

in the myocardium the folds and the bridges

are called ?

the folds and bridges in the myocardium is known as_______and conical extensions are 

Called__________.

1.trabeculae

2.papillary muscles

The inside of the heart: The lining of the heart is called???

atrioventricular Valve is located 

where?

AKA: AV

the atrioventricular valves are made of two vavles which are ?

the right side is called_______valve has 3 flaps or cusps

The left side is called_____Valve Or AKA the ____Valve has 2 flaps or cusps

the Rt: is tricuspid

the lt: is bicuspid or AKA Mitral

True or False

pulmonary semilunar valve is located on the left side of the heart

which artery is anterior interventricular supplies walls to both vent Aka L.A.D

CIRCUMFLEX SUPP. LT. VENT & LT ATRIUM

    Heart diseases have been the leading cause of death in the United States for many

decades.  It is estimated that well over ? people die annually from cardiovascular

disease in the United States.

A.2500; B. 50,000; C. 100,000; D. 500,000;

E. 1,000,000.

   Which one of the following “risk factors” would be classifiedas an uncontrollable factor?

a. hypertention

B. elevated LDL’s;

C. father who died before age 55 with MI;

D. obesity;

E. nicotine fits.

C. father who died before age 55 with MI;

Which one of the following structures is the first to form in the embryonic heart?

1.     Which one of the following structures is responsible for the formation of the pulmonary

atery?

  It is estimated that fetal heartbeat can be heard via ultrasound at what time period?

 In the middle of the thoracic cavity is an area where the heart is located.  The name of the space is the ?

     The ductus arteriosus is associated with fetal circulation.  It is located between the ______________& ____________?

The part of the serous pericardium that lines the outer portion of the  pericardial sac is called the:

T-F The base of the heart is the inferior portion of the ventricles.

   T-F Rubella is the name for German measles.

T-F   The aorta exits the rt. ventricle, while the pulmonary artery exits the lt. Ventricle.

   T-F a stenosed heart valve means that the valve is narrow and this was mentioned as  one of the congenital defects

The papillary muscles:

A.    are found in the atria;

B. contract to close the foramen ovale;

C. are attached to the semilunarvalves;

                    D. are attached to the chordae tendineae;

                    E. surround the openings to the coronary arteries.

                    D. are attached to the chordae tendineae;

   Which of these structures returns blood to the right atrium?

A.    coronary sinus;

B. inferior vena cava;

C. superior vena cave;

D. both b & c;

E. all of the above.

The valve located between the right atrium and the right ventricle is the:

A.aortic semilunar valve;

B. pulmonary semilunar valve;

C. tricuspid valve;

D. bicuspid valve;

E. Thebsian valve.

C. tricuspid valve;

Cardiac tamponade has reference to :

                     A. narrowing of an artery such as the aorta;

                      B. a hole in the interventricular septum;

                      C. a stent in the lt. coronary artery;

                      D. a stenosed mitral valve;

                      E. compression of heart due to accumulation of fluid in the pericardium

The SA node is located in the????????

Given these structures of the conduction system of the heart:

(1) atrioventricular bundle;

(2) AV node;

(3) bundle branches;

(4) Purkinje fibers;

(5) SA node

Choose the arrangement that lists the structures in the order an action potential through them.

(a)  2,5,1,3,4;

(b) 2,5,3,1,4;

c) 2,5,4,1,3;

D. 5,2,1,3,4;

E. 5,2,4,3,1

Which of these conditions observed in an electrocardiogram suggests that the AV node is not conducting action potentials?

The T wave on an EKG represents

A, atrial depolarization;

B. Purkinje fiber repolarization;

C. ventricular depolarization;

D. atrial repolarization;

E. ventricular repolarization

The Purkinje fibers are associated with which of the following

A. superior portion of the interventricular septum;

B. upper portion of the rt. atrium;

c.lower  portion of the interatrial septum

D. cells of the myocardium;

E. along the sides of the interventricular septum

Where the P-R interval is greater than 0.2 sec. is characteristic of which one of the following heart blocks?

A. Mobitz I;

B. Third Degree;

C. First Degree;

D. Mobitz II;

E. Wenchebach.

C. First Degree;

The length of time it takes for a cardiac cycle to occur is usually:

A. .04 sec.;

B. .2 sec;

C. .4 sec.;

D. .6 sec.;

E. .8 sec

While the semilunar valves are open during a normal cardiac cycle, the pressure in the lt. ventricle is:

A.greater than the pressure in the aorta;

B. less than the pressure in the aorta;

C. the same as the pressure in the lt. atrium;

D. less than the pressure in the lt. atrium;

E. none of these adequately describe the situation when the semilunar valves are open

10. The enzyme that was discussed as being unique to cardiac muscle was:

             A. SGOT; B. CK-MB; C. LDH; D. CPK: E. acetylcholine esterase.

The “lubb” sound (first heart sound) of the heart is caused by the:

A. closing of the semilunar valves; 

B. closing of the AV valves;

C. blood rushing out of the ventricles;

            D. filling of the ventricles;

            E. ventricularcontraction

During transmission of action potentials through the conducting system of the heart, there is temporary delay at the:

A.    bundle branches;

B. Purkinje fibers;

C. SA node;

D. AV bundle;

E. AV node.

Based on our discussion concerning heart transplants and heart rate, which endocrine gland did we emphasize that produces a hormone that affects heart rate?

 A. pituitary;

 B. pancreas;

C. adrenal;

D. thyroid;

E. thymus.