Anatomy: Lecture 5 - Cardiovascular System?

Question 1

What does the circulation system consist of?

Answer 1

The Arterial System
The Heart Pump
The Venous System

Question 2

What is the System Circulation?

Answer 2

Left side of the heart -> Body Systems -> Right Side of Heart

Question 3

What is the Pulmonary Circulation?

Answer 3

Right side of the Heart ->Lungs -> Left side of Heart

Question 4

What is the stopping of the heart called?

Answer 4

Cardiac Arrest

Question 5

What cavity is the heart located in?

Answer 5

Chest Cavity - Located in the midline space between the lungs.

The Mediastinum

Question 6

How can the Mediastinum be divided?

Answer 6

Superior
Middle
Porsterior

Question 7

What is the layer the heart is protected by?

Answer 7

Pericardium

Question 8

What are the parts of the Pericardium?

Answer 8

Fibrous Pericardium
Partial Serous Pericardium
Visceral Pericardium

Question 9

What is the purpose of the Fibrous Pericardium?

Answer 9

Prevents Overfilling

Protect s against injury

Question 10

What is Cardiac Tamponade?

Answer 10

Pericardial cavity fills with blood, causing pressure to increase around the heart

Question 11

What are the layers of the heart itself?

Answer 11

Epicardium
Myocardium - cardiac muscle layer
Endocardium - endothelium lining

Question 12

What supplies blood to the heart and where from?

Answer 12

From the aorta by the Coronary arteries

Question 13

What are the superior branched vessels of the heart?

Answer 13

Superior Vena Cava
Aorta
Pulmonary Trunk

Question 14

What is the name given to the posterior surface of the heart?

Answer 14

Base of the heart

Question 15

What does the Base of the Heart rest on?

Answer 15

The Diaphragm

Question 16

What is the right hand side of the heart called?

Answer 16

The Right border

Question 17

What is the left hand side of the heart called?

Answer 17

Left Lateral Border

Question 18

What side of the heart is the Apex generally on?

Answer 18

The Left hand side

Question 19

How are the myocytes of the myocardium arranged ?

Answer 19

Spirals

Question 20

What divides the heart into two parts?

Answer 20

The Septum

Question 21

What blood does the left hand side pump?

Answer 21

Pumps Arterial blood from the Pulonary circulation to the Systemic circulation

Oxygenated

Question 22

What blood does the right hand side of the heart pump?

Answer 22

Pumps Venous blood from the systemic circulation to the Pulmonary circulation

Question 23

What are the 4 valves of the heart?

Answer 23

Tricuspid Valve
Pulmonary Valve
Mitral/Bicuspid Valve
Aortic Valve

Question 24

Where is the Tricuspid valve located?

Answer 24

Found between the Right Atrium and the Right Ventricle

Question 25

Where is the Pulmonary Valve found?

Answer 25

Found between Right Ventricle and Pulmonary Trunk

Question 26

Where is the Mitral/Bicuspid Valve found?

Answer 26

Found between the Left atrium and the left Ventricle

Question 27

Where is the Aortic Valve found?

Answer 27

Found between the Left Ventricle and the Aorta

Question 28

Where does the electrical signal start?

Answer 28

Starts at the Sinoatrial Node on the Right Atria

Question 29

Describe the electrical transfer in the heart that brings about its contraction?

Answer 29

Sinoatrial node on right atria Atrioventricular node at the Septum Atrioventricular Bundle transports singal down the Interatial Septrum via Perkinje fibres

Question 30

What is the purpose of the cardiac skeleton?

Answer 30

Electrical Insulator Fibrous tissue that supports the valves of the heart

Question 31

What does the cardiac skeleton consist of?

Answer 31

The Valves Part of septum

Question 32

What is Fibrillation?

Answer 32

Uncoordinated contraction of myocytes - results in inefficient pumping of the heart

Question 33

What is the cardiac plexus?

Answer 33

Mixture of nerves that supply the heat Includes: Sensory Nerves Motor Nerves

Question 34

What is the affect of the sympathetic nerves on the heart?

Answer 34

Speeds up the heart

Question 35

What is the affect of the parasympathetic nerves on the heart?

Answer 35

Slows down the heart