GA1-Heart and Pericardium Parts

Question 1

Left Coronary Artery

Answer 1

Anterior. Comes off of the left side of the ascending Aorta. Splints in half to the Circumflex Branch (goes around heart) & Left Anterior Descending

Question 2

Right Coronary Artery

Answer 2

Anterior Comes off the Rights side of ascending aorta following the coronary sulcus. Branches off first to Right Marginal Branch and then the Posterior Interventricular Branch of Coronary artery

Question 3

Coronary Sulcus

Answer 3

Divides the atrium from the ventricle. Holds the coronary artery.

Question 4

Coronary Sinus

Answer 4

Posterior side, delivers deoxygenated blood from heart muscle to right atrium.

Question 5

Pulmonary Trunk

Answer 5

Posterior side. Branches into pulmonary veins. Delivery of deoxygenated blood to lungs.

Question 6

Sulcus Terminalis

Answer 6

Space between Right auricle and Superior Vena Cava. Opposite the Crista Terminalis.

Question 7

Mitral Valve

Answer 7

Sits between Left Atrium and Left ventricle

Question 8

Tricuspid Valve

Answer 8

Sits between Right Atrium and Left ventricle

Question 9

Crista Terminalis

Answer 9

Smooth ridge Dividing the pectate and smooth muscle of the right atrium. Opposite the Sulcus terminalis.

Question 10

Pectinate muscles

Answer 10

‘Rough’ muscle inside the atrium of heart. Porous.

Question 11

Trabeculae Carneae In the Ventricles

Answer 11

Rough porous muscles in ventricles.

Question 12

Trabeculae Carneae In the Atriums

Answer 12

Rough porous muscles on the walls to the outer heart.

Question 13

Pericardium is made of:

Answer 13

Fibrous Pericardium & Serous Pericardium

Question 14

Fibrous Pericardium

Answer 14

Outer layer of pericardium. Attaches to diaphragm on

Question 15

Serous Pericardium

Answer 15

Inner Layer of pericardium.

Question 16

Parietal Pericardium

Answer 16

Outer layer of Serous pericardium. Attached to the fibrous pericardium.

Question 17

Visceral Pericardium

Answer 17

Innermost layer of the Serous Pericardium

Question 18

Order of Things passing through diaphragm A to P

Answer 18

I Eat Apples: Inferior Vena Cava, Esophogus, Aorta

Question 19

Pericardium is bound by:

Answer 19

Pericardiacophrenic & Sternopericardial ligaments

Question 20

Pericardium Arterial supply

Answer 20

internal Thoracic, Pericardiophrenic, muscluphrenic, and inferior phrenic arteries and the thoracic aorta

Question 21

Pericardium Nerve supply

Answer 21

Phrenic (GSE, GSA, GVE, GVA) and vagus nerves, sympathetic trunks

Question 22

Pericardium location

Answer 22

Middle Mediastinum, costal cartilage 2-6, T5-T8 Vertebrae

Question 23

Layers of the Heart

Answer 23

Epicardium, Myocardium, Endocardium

Question 24

Sternocostal Surface of the Heart

Answer 24

Right Ventricle

Question 25

Left Pulmonary Surface of the Heart

Answer 25

Left Ventricle and part of the Left Atrium

Question 26

Right Pulmonary surface of the Heart

Answer 26

Right atrium

Question 27

Diaphragmatic surface of the Heart

Answer 27

Left Ventricle and a bit of the right ventricle

Question 28

Base

Answer 28

Posterior aspect, Left atrium. Located at T6-T9. Sits Posterior, Superior and to the right

Question 29

Apex

Answer 29

Inferolateral part of the Left ventricle. Located at the 5th intercostal space and the mid clavicular line. Sits Anteriorly, Inferiorly to the left.

Question 30

Atrioventricular Sulcus

Answer 30

Also known as the Coronary Sulcus

Question 31

Superior Border of the Heart

Answer 31

Left Atrium and Right Atrium and Auricles

Question 32

Inferior Border

Answer 32

Right Ventricle and tiny bit of Left Ventricle

Question 33

Left Border

Answer 33

Left Ventricle and Left Auricle

Question 34

Right Border

Answer 34

Right Atrium. Extends from Superior Vena Cava to Inferior Vena Cava.

Question 35

Right Atrium Contains

Answer 35

Crista Terminalis, Sinus venarum, pectinate muscles, venus openings, fossa ovalis, tricuspid orifice

Question 36

Left Atrium contains

Answer 36

Pulmonary Vein openings and mitral orifice

Question 37

Right Ventricle Contains

Answer 37

Conus Arteriosus, papillary muscles, trabeculae carneae, tricuspid valve.

Question 38

Left Ventricle Contains

Answer 38

Mitral Valve, papillary muscles, trabeculae carneae,

Question 39

SA Nodal Branch origin

Answer 39

Branches off of Circumflex branch of the left coronary artery. 40% of blood to SA Node

Question 40

AV Nodal Artery, SA Nodal Artery

Answer 40

Off of Right Coronary artery 80% & 40%

Question 41

Marginal Branch of Right Coronary Artery Supplies

Answer 41

Right Ventricle

Question 42

Posterior Interventricular Supplies

Answer 42

Both Ventricles

Question 43

Which Coronary Artery is dominant?

Answer 43

90% of people have RCA dominance. 15% have codominance.

Question 44

Cardiac Conduction System

Answer 44

SA>Internodal fasciculi>AV Node>AV Bundle> Purkinje fibers

Question 45

SA Node Job

Answer 45

Intrinsic, automatic, electrical stimulus produced on its own. Primary pacemaker. *Can be influenced by synaptic and parasympathetic impulses.

Question 46

Purkinje fibers

Answer 46

Specialized cardiac muscle w/glycogen

Question 47

Cardiac Plexus Contains

Answer 47

Preganglionic Sympathetic fibers, Vagal afferent fibers, Post ganglionic sympathetic fibers, sympathetic afferent fibers. Doesn't detect touch, cold, cutting or heat.

Question 48

Vagal afferent fibers

Answer 48

Sensory. Preganglionic sympathetic. Detects changes in blood pressure and blood composition.

Question 49

Sympathetic afferent fibers

Answer 49

Parasympathetic GVA detects ischemic pain, i.e. lack of blood flow