Cardio Identifications

Question 1

Pericardium

Answer 1

Double-walled sac called pericardium

Question 2

Fibrous pericardium

Answer 2

Superficial tough dense layer of pericardium. It protects the heart, anchors it to its surroundings, and prevents it from overfilling with blood.

Question 3

Serous pericardium

Answer 3

Thin slippery two layered part of the pericardium located deep to the fibrous pericardium.

Question 4

Parietal layer

Answer 4

Superior layer of serous pericardium. Attach to the vessels entering and exiting the heart.

Question 5

Visceral layer

Answer 5

Also known as epicardium, it is the internal layer of the serous pericardium

Question 6

Pericardial cavity

Answer 6

Slit-like cavity between parietal and visceral layer containing serous fluid. Reduces friction during heart activity

Question 7

Myocardium

Answer 7

Middle layer of heart wall comprised mainly of cardiac muscle. Responsible for contractions

Question 8

Endocardium

Answer 8

Lines internal surface of hear chambers and vessels

Question 9

Right ventricle

Answer 9

Forms majority of anterior surface

Question 10

Coronary sulcus

Answer 10

Junction of atria and ventricles

Question 11

Anterior and posterior interventricular sulcus

Answer 11

Junction of ventricles

Question 12

Auricles

Answer 12

Increase atrial volume

Question 13

Fossa ovalis

Answer 13

Shallow depression that marks location of foramen ovale in fetal heart

Question 14

Superior vena cava

Answer 14

Returns blood from body regions superior to diaphragm(head neck arms etc)

Question 15

Inferior vena cava

Answer 15

Returns blood from body areas below the diaphragm

Question 16

Coronary sinus

Answer 16

Returns blood from myocardium

Question 17

4 Pulmonary veins

Answer 17

Return oxygenated blood to left atrium

Question 18

Papillary muscles

Answer 18

Plays role in valve function

Question 19

Trabeculae carnea

Answer 19

Muscle ridges on ventricular walls

Question 20

Right and left coronary arteries

Answer 20

Supply blood to heart itself

Question 21

Anterior interventricular artery

Answer 21

Supplies blood to interventricular septum and anterior walls of ventricles

Question 22

Circumflex artery

Answer 22

Supplies blood to left atrium and posterior walls of ventricles

Question 23

Right marginal artery

Answer 23

Supplies blood to right side of heart

Question 24

Posterior interventricular artery

Answer 24

Supplies posterior ventricular walls

Question 25

Cardiac veins

Answer 25

Collect blood from heart and deliver it to coronary sinus

Question 26

What are the three cardiac veins and where do they arise from?

Answer 26

Great cardiac vein: anterior interventricular sulcus
Middle cardiac vein: posterior interventricular sulcus
Small cardiac vein: inferior surface

Question 27

Mediastinum

Answer 27

Heart cavity