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Flashcards in The Heart Deck (100)
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1

what is the sequence in the pulmonary circuit?

heart-> pulmonary arteries -> pulmonary capillaries -> pulmonary veins -> heart

2

What is special about the pulmonary arteries?

Arteries usually consist of oxygenated blood, however these arteries consists of deoxygenated blood

3

What is the sequence in the systemic circuit?

heart -> systemic arteries -> systemic capillaries -> systemic veins -> heart

4

Where is the apex in terms of the 4 chambers?

The apex is located in the let ventricle

5

What are the 2 parts of the pericardium and their relative location?

the fibrous pericardium and is superficial to the serous pericardium which is deep

6

What is the function of the fibrous pericardium?

protection, anchoring the heart to surrounding structures and prevents overfilling with blood

7

What is the fibrous skeleton of the heart?

dense connective tissue network that anchors cardiac muscle fibers, supports vessels and valves, and limits spread of action potentials

8

What separates the 2 atria?

interatrial septum

9

What separates the 2 ventricles?

interventricular septum

10

Which surface marker separates the atria from the ventricles both anteriorly and posteriorly?

coronary sulcus

11

Which 2 surface markings divide the 2 ventricles?

the anterior and posterior interventricular sulcus

12

What is the purpose of the atria?

they are the receiving chambers

13

How much activity do the atria contribute the pumping blood?

little

14

How many auricles are there and their purpose?

2: right and left
The purpose of the auricles are to aid the atria by slightly increasing the volume

15

What muscles are located in the wall of the right atrium and auricles?

pectinate muscles

16

Which marking is present in the fetus, but once born becomes a bone marking?

fossa ovalis

17

What is the function of the fossa ovalis n a fetus?

to pump blood between the right and left atria

18

What pumps blood into the right atrium? From where?

Superior vena cava: from above diaphragm

Inferior vena cava: from below diaphragm

Coronary sinus: from myocardium

19

Is blood in the right atrium deoxygenated or oxygenated?

deoxygenated

20

What pumps blood into the left atrium? From where?

the pulmonary veins, from the lungs

21

Is the blood in the left atrium deoxygenated or oxygenated?

oxygenated

22

What are the ventricles referred to as?

the discharging chambers

23

What connects the papillary muscles to valve cusps?

chordae tendiane

24

What is the function of the pulmonary trunk?

carry deoxygenated blood to the lungs

25

What is the function of the aorta?

carry oxygenated blood to the body

26

Which side is the pulmonary circuit pump?

right side

27

Which side is the systemic circuit pump?

left side

28

What causes the valves to open and close?

response to changes n pressure

29

What prevents backflow into the atria when the ventricles contract?

Atrioventricular (AV) valves

30

What are the 2 types of AV valves and their location?

tricupsid valve- right
bicuspid (mitral) valve- left