Cardiovascular Unit PPT
Make a heart
• You will need a worksheet
• See instructions on board
• Color last please
• Needs to be done by end of hour
for use in next class.
W.A. worksheet (label #4-7 together)
Heart Anatomy: Flashcards:
•You will need to:
•Cut
•Hole punch
•Get 1 color
Cardiovascular Medical Abbreviations
• Using packet B fill in chart
• Please put packet back when finished
Medical abbreviations practice
1. Take a family history, date of birth, weight before examination.
______________________________________________________
Take FX, DOB, wt before exam
2. Record all vital signs, blood pressure, temperature and pulse three times a day
______________________________________________________
Record VS, BP T, P tid
3. Take chest xray, electrocardiogram before surgery
Take CXR, ECG/EKG preop
______________________________________________________
4. Move patient to recovery room with wheelchair and give them bathroom
privileges.
Move pt RR c w/c BRP
______________________________________________________
Word parts:
• Fill in what you know!
• Use packet A
Vocabulary
• Using your Word Part chart fill in the vocab terms that you are able to
Check/add to your vocab:
• Atherosclerosis: narrowing of
blood vessels caused by deposits
of fatty material containing
calcium and cholesterol
• Coronary: pertaining to the
heart
• Diastolic: dilation of the heart,
resting phase or filling of the
ventricles
• Hepatic circulation: path of
blood from the intestines, GB,
pancreas, stomach and spleen
THROUGH the liver
• Pulmonary circ: heart to lung.
Carries de-oxygenated blood
from the right ventricle to the
lungs and returns oxygenated
blood to the left atrium of the
heart
• Systemic circ: general circ to
systems. Oxygenated blood
from the left ventricle to tissues
of the body, returns deoxygenated blood to right atrium
• Systolic: contraction of the
ventricles
termrrhage
Path of Blood: blood flow
3. Right atrium
4. Tricuspid valve
5. Right ventricle
2. superior/inferior
vena cava
6. Pulmonary arteries
1. All parts of the
body
7. lungs
12. aorta
8.Pulmonary veins
11. Left ventricle
10. bicuspid/mitral
valve
9. Left atrium
Blood flow: a little
more realistically
Blood flow coloring:
• When finished fill out the
questions to the right of coloring
in packet.
• Try without book, then book
Heart Circulation
• Pulmonary: Flow of blood between the heart and lungs
• Systemic: Flow of blood between the heart and the cells of the body
• Coronary: Flow of blood within the heart
Blood Flow
• Vessels
• Arteries carry blood away from the heart
• Largest = Aorta
• Heart muscle contractions pump
blood through arteries
Veins carry blood towards the heart
Largest = Superior/Inferior Vena Cava
Valves prevent blood from returning
to heart
skeletal muscle contractions move
blood through veins
Blood Flow Cont’d
• Valves
• control blood flow
• Valve between left atrium and ventricle =
bicuspid
• Valve between right atrium and ventricle =
tricuspid
• Pulmonary and aortic valves stop the back
flow of blood into the heart
Structures
• Heart
• Beats 72 times a minute
• 100,000 times a day
• 3 Trillion times in a
lifetime!
• Circulates about 5-7
liters of blood
• Blood Vessels
• Arteries
• Veins
Functions
• Transport nutrients and oxygen
• Transport waste to kidneys
• Distribute hormones and antibodies
• Help control body temperature and maintain homeostasis
Heart
• 2 Sided double pump
• Is about the size of your fist
• Lies in the thoracic cavity between
the lungs
Heart Tissue
• Endocardium: smooth
membranous lining inside the
heart
• Myocardium: thickest layer, muscle
tissue that is contractile.
Heart Tissue Cont’d
• Epicardium: outermost
layer in the pericardium
• Pericardium: covers the outside of
the heart
Parts of the Heart
• Divided into right and left sides
• 2 chambers in each side, for a total of 4 chambers
• Atrium: top, where blood enters
• Ventricles: bottom, where blood leaves
• Left and right sides separated by a partition called a septum
Cardiac Conduction System
• Electrical Impulses produce a wave
that can be recorded on the ECG
• Consists of
•
•
•
•
•
Sinoatrial (SA) node
Atrioventriclular (AV) node
Bundle of His (AV Bundle)
Bundle Branches
Purkinje Fibers (network)
SA NODE
• Located in the upper right part of the atrium
• Is a natural pacemaker
• Fires at a rate of 60 to 100 times per minute
• The heartbeat starts in the SA node
AV NODE
• Located in the floor of the right atrium
• Delays or slows the electrical impulse
• Fires at a rate of 40 to 60 time per minute
• Can take over if the SA node is not working
Bundle of His
• Located next to the AV node
• Transfers the electrical impulse from the atria to the ventricles
Bundle Branches
• Located along the left and right side of the interventricular septum
• Act as pathways or a fork in the road
• Impulses in the bundle branch perform the important work of making
the heart muscle contract
Purkinje Network
• Provide an electrical pathway for each of the cardiac cells
• Activate the left and right ventricles simultaneously causing the
ventricles to contract
Pulse
• Using reading packet fill in the Pulse
worksheet
Heart Sounds
• Lubb Sound
• Heard first
• Mitral and tricuspid valves closing between the atria and
ventricles
• Dupp Sound
• Heard second
• Shorter and higher pitched
• Closing of the aortic and pulmonary valves as blood is
pumped out of the heart
• Murmurs
• Abnormal or extra sounds
http://depts.washington.edu/physdx/heart/demo.html
Blood Pressure
• Systolic = contraction of the ventricles
• Diastolic = ventricle relaxation
• Normal BP= 120/80 (systolic/diastolic)
• Healthy systolic is less than 140 and greater than
90
• Healthy diastolic should be less than 100
http://www.nejm.org/doi/full/10.1056/NEJMvcm0800157
Blood pressure readings
• Using the reading packet fill in the Blood Pressure worksheet
Health Concerns/Assessments/Risk Factors
• Using Teacher website
• Click cardiovascular unit
• Click website
• Fill in guided notes using the website