lab 3, exercise 3

There are ________ pulmonary veins.

4

Is the highlighted structure closed during atrial systole, or during ventricular systole?

ventricular systole

Identify the specific serous membrane layer at the end of the arrow.

visceral pericardium

The inferior point of the heart is called the

apex

Identify the structure labeled "6."

cusp of tricuspid valve

What is the oxygen concentration of the blood in the indicated chamber of the heart?

de-oxygenated

The pulmonary veins carry blood to the

heart

Blood leaves the right ventricle by passing through the

pulmonary valve

Drag the labels to identify structural components of the heart.

1. brachiocephalic trunk 2. superior vena cava 3. right pulmonary arteries 4. aortic arch 5. ascending aorta 6. inferior vena cava 7. left common carotid 8. left subclavian artery 9. left pulmonary arteries 10. left pulmonary veins 11. pulmonary trunk 12. descending aorta

Drag the labels to identify structural components of the heart.

1. fossa ovalis 2. pectinate muscles 3. cusp of tricuspid valve 4. chordae tendinae 5. papillary muscles 6. interatrial septum 7. aortic valve 8. cusp of mitral valve 9. interventricular septum 10. trabeculae carnae 11. moderator band

Drag the labels to identify the arteries and veins of the systemic and pulmonary circuits.

1. pulmonary arteries 2. capillaries in lungs 3. pulmonary veins 4. right atrium 5. capillaries in head and neck 6. systemic arteries 7. left ventricle 8. capillaries in abdominal organs 9. systemic veins 10. capillaries in upper limbs 11. capillaries in trunk and lower limbs `

Drag the labels onto the diagram to identify the valves of the heart and surrounding structures.

1. right ventricle 2. tricuspid valve (open) 3. cardiac skeleton 4. mitral valve (open) 5. left ventricle 6. aortic valve (closed) 7. pulmonary valve (closed)

Drag the labels onto the diagram to identify the gross anatomy of the heart and its surrounding structures.

1. trachea 2. base of heart 3. right lung 4. thyroid gland 5. left lung 6. apex of heart 7 diaphragm

Which of the following is not true regarding the right atrioventricular valve? -It is also called the tricuspid valve. -The cusps provide one-way flow of blood. -It prevents backflow of blood from the right ventricle into the right atrium.I -t has 3 cusps. -The valve closes when the right atrium contracts.

The valve closes when the right atrium contracts.

The left ventricle pumps blood to the

aorta

The __________ valve prevents backward flow of blood into the left ventricle.

aortic

What type of tissue predominates in the highlighted structure?

cardiac muscle

The first heart sound, "lubb," is caused by the ________.

closing of the atrioventricular valves

The first blood vessels to branch from the aorta are the ________ arteries.

coronary

The visceral pericardium is the same as the

epicardium

The structure that permits blood flow from the right atrium to the left atrium in the fetal circulation is the

foramen ovale.

Is the blood entering the highlighted chamber highly oxygenated or poorly oxygenated?

highly oxygenated

The atrioventricular valves permit blood flow

in one direction only.

The ________ is shared by the two ventricles.

interventricular septum

Blood returning to the heart from the pulmonary circuit first enters the

left atrium

Blood returning to the heart from the pulmonary circuit first enters the __________.

left atrium

The ________ side of the heart supplies blood to the systemic circuit, while the ________ side of the heart supplies blood to the pulmonary circuit. (Figure 20-1)

left; right

The ________ is a remnant of an important fetal blood vessel that once linked the pulmonary and systemic circuits.

ligamentum arteriosum

In the middle of the thoracic cavity is a region occupied by the heart, great vessels, thymus, esophagus, and trachea called the

mediastinum.

The right pulmonary veins carry ________ blood to the ________.

oxygenated; left atrium

Identify the structure labeled "19."

pulmonary semilunar valve

Identify the highlighted structure.

pulmonary trunk

The right atrium receives blood from all of the following structures except the

pulmonary veins.

The right ventricle pumps blood to the

right and left lungs

What structure is highlighted?

right atrium

Identify the highlighted vessel.

right coronary artery

Identify the highlighted vessels.

right pulmonary veins

The endocardium consists of this type of tissue.

simple squamous epithelium

The normal range for pulse rate (per minute) is

70-76

Identify the highlighted structure.

aortic valve

The earlike extension of the atrium is the

auricle

Identify the highlighted vessel.

coronary sinus

Identify the highlighted vessel.

great cardiac vein

Blood is supplied to the muscular wall of the left atrium by the

left coronary artery.

Identify the highlighted vessel.

left pulmonary artery

If the valves of the heart do not close tightly during systole, a swishing sound, caused by the regurgitation or backflow of blood in the chambers, is heard through a stethoscope properly placed over the patient's chest. This abnormality is called a(n)

murmur

The pulmonary veins carry __________ blood to the __________ atrium.

oxygenated; left

Thick projections of muscle in the ventricles that anchor chordae tendineae are called

papillary muscles.

Blood flowing in the vena cava will next enter the __________.

right atrium

Blood returning to the heart from the systemic circuit first enters the

right atrium

Coronary veins empty into the

right atrium

Into which chamber of the heart will blood flow next after the vessel indicated by the red arrow?

right atrium

The highlighted vessel returns blood from the body to which chamber of the heart?

right atrium

Identify the structure labeled "22."

aortic arch

The superior portion of the heart where major blood vessels enter and exit is the

base.

The cusps (leaflets) of atrioventricular valves attach directly to

chordae tendineae.

The foramen ovale in the fetal heart is located in the

interatrial septum.

Oxygen is added to blood as it flows through the ________ circuit.

pulmonary

All of the following are arteries in the body where a peripheral pulse can easily be taken EXCEPT femoral art. dorsalis pedis art. radial art. common carotid art. superior vena cava

superior vena cava

Identify the highlighted vessel.

superior vena cava

Which of the labeled valves will open during ventricular systole to allow the flow of blood to the lungs?

the semilunar valve labeled B

What is the function of the highlighted structures?

to prevent the atrioventricular valves from everting into the atria

Identify the highlighted structure(s).

trabeculae carneae

Muscular ridges on the inner surface of the ventricles are called

trabeculae carneae.

Drag the labels onto the diagram to identify the superficial features of the heart (anterior surface).

1. ascending aorta 2. superior vena cava 3. auricle of right atrium 4. right atrium 5. right ventricle 6. arch of aorta 7. descending aorta 8. pulmonary trunk 9. pulmonary trunk 10. auricle of left atrium 11. left ventricle

The following is a list of vessels and structures that are associated with the heart. What is the correct order for the flow of blood entering from the systemic circulation? 1. right atrium 2. left atrium 3. right ventricle 4. left ventricle 5. venae cavae 6. aorta 7. pulmonary trunk 8. pulmonary veins

5, 1, 3, 7, 8, 2, 4, 6

Normally, a minimum of ________ percent of a pateint's peripheral arterial red blood cells should be carrying oxygen.

90

Identify the highlighted structure.

tricuspid valve

Beginning with the right atrium, what is the order of the valves through which blood will pass? (Figure 20-5)

tricuspid valve, pulmonary valve, mitral valve, aortic valve

The ________ carry blood toward the heart.

veins

Check all of the choices below that are correct. -umbilical arteries supply blood from mother to the fetus -umbilical veins supply blood from the mother to fetus -umbilical arteries return blood from the fetus to the mother -umbilical veins return blood from the fetus the mother

-umbilical veins supply blood from the mother to fetus -umbilical arteries return blood from the fetus to the mother

Drag the labels onto the diagram to identify the superficial features of the heart on the posterior surface.

1. left pulmonary veins 2. left atrium 3. coronary sinus 4. left ventricle 5. right ventricle 6. arch of aorta 7. right pulmonary artery 8. superior vena cava 9. right atrium 10. inferior vena cava

Which of these statements concerning the cardiac cycle is FALSE? -AV valves close before semilunar valves open. -Aortic pressure is greater than pulmonary trunk pressure. -Ventricular systole begins at the peak of atrial systole. -Cardiac cycle begins with atrial systole.

Ventricular systole begins at the peak of atrial systole.

Identify the highlighted vessel.

anterior interventricular artery

Name the valve indicated by the yellow arrow. Is it OPEN or CLOSED during atrial systole?

aortic valve,closed

The bicuspid or mitral valve is located

between left atrium and left ventricle