Lecture 47 - Cardio anatomy 1

Question 1

The region in the centre of the thoracic cavity is the

Answer 1

Mediastinum

Question 2

The ________ ___, encloses the heart

Answer 2

The Pericardial sac, encloses the heart

Is adherent to the diaphragm

Question 3

The tendon of insertion for the diaphragm is in the ..

Answer 3

centre (aheres to the pericardial sac)

Question 4

When you look at the pericardial sac from the outside it is an_____ ______ ____

Lining the internal aspect is the ______Pericardium.

Answer 4

When you look at the pericardial sac from the outside it is an outer fibrous structure.

Lining the internal aspect is the Serous Pericardium.

Question 5

The ______ covering of the pericardial sac is the Fibrous layer (not contacting the viscera)

Answer 5

The Parietal covering of the pericardial sac is the Fibrous (not contacting the viscera)

Question 6

The ________covering of the pericardial sac is the Serous layer (not contacting the viscera)

Answer 6

The Visceral covering of the pericardial sac is the Serous layer (not contacting the viscera)

Question 7

Within the Pericardial cavity is ______fluid

Answer 7

Within the Pericardial cavity is Serous fluid

Question 8

So to cut through to the heart when looking from the Mediastinum:

Answer 8

1. Through the Fibrous layer of pericardium
2. The parietal layer of serous pericardium
3. cavity (containing a few mls of serous fluid)
4. Then the visceral layer of the pericardium.

Question 9

When looking at the anterior side of the heart, we’re expecting to see _____ chambers of the heart

Answer 9

When looking at the anterior side of the heart, we’re expecting to see right sided chambers of the heart

(rotation during development)

Question 10

Label

Anterior view of the Heart

Answer 10

Question 11

What is the intercostal space

Answer 11

Between the ribs

5th rib is where the apex of the heart palpates

Question 12

Label

Posterior view of the Heart

Answer 12

Question 13

Right artium is collecting ____ _____ from the body

Answer 13

Collecting venous return from the body

Question 14

The Internal surface of the anterior wall of the right artium is ridged this is called _____ _____

The smooth area is called

Answer 14

The Internal surface of the anterior wall of the right artium is ridged this is called muscluli pectinati

The smooth area is called Sinus venarum

Question 15

All of the venous return from above the diaphargn (head, neck, upper limbs, thorax - except __________) goes to the the SVC

Answer 15

All of the venous return from above the diaphargn (head, neck, upper limbs, thorax - except the heart) goes to the the SVC

Question 16

IVC returns everything from ______ ___ ________

Answer 16

Below the diaphragm

Question 17

The third opening int he riht artium (other than IVC and SVC) is the ____ ___

and is responsible for ….

Answer 17

Coronary sinus (the hearts own vein)

Question 18

The Fossa Ovalis is the _________ (A pit in he right artium)

Answer 18

remnants of the foramen ovali, the venous return before birth.

Will look like a pit

Question 19

The right and left ____ __________ look like two hands trying to clasp the grat vessels.

Answer 19

The right and left artial appendages look like two hands trying to clasp the grat vessels.

Question 20

The whole of the right ventricle has ridging in their wall called (______ _____) - except the the area just beneath the _______valve

Answer 20

The whole of the right ventricl ehas ridging in their wall called (trabeculae cannae) - except the the area just beneath the pulmonary valve

Question 21

The _____ ______ (string of the ‘web) connects the the 3 papillary muscles to the tricuspid valve

Answer 21

The cordae tendinae (string of the ‘web) connects the the 3 papillary muscles to the tricuspid valve

Question 22

The __ ventricle has the thickest wall of all

Answer 22

The Left ventricle has the thickest wall of all

Question 23

The left ventricl has ____ papillary muscles

Answer 23

two

Question 24

The Mitral valve is between the __ _____ and ___ _______

Answer 24

The Mitral valve is between the left artium and left ventricle

Question 25

The fibrous skeleton of the heart provide attachment for the base of each ____ _____

Answer 25

The fibrous skeleton of the heart provide attachment for the base of each valve cusp

Question 26

Mitral = __ cusps

Answer 26

Mitral = 2 cusps

Question 27

Cusps are the component of the valve thst can ___and allow ___ __ __ ____

Answer 27

Cusps are the component of the valve thst can open and allow floe to go through

Question 28

True or False,

The papillary and cordae tendinae muscles open and close the artio-ventricular valves

Answer 28

False

Question 29

The papillary muscles and chordae tendinae hold the valves _______when the ventricles _______and prevent _______of blood from ventricle to artium.

Answer 29

The papillary muscles and chordae tendinae hold the valves closed when the ventricles contract and prevent backflow of blood from ventricle to artium.

Question 30

True or False

the fibrous skeleton electrically isolates the atrial muscles mass from the ventricular muscle mass

Answer 30

True

Question 31

True or False

Th AV node transmits the electrical impulse across the fibroskeleton

Answer 31

True