wednesday, feb 8, 2012 objective : describe the dangers of high blood pressure br: fill in the...

Wednesday, Feb 8, 2012

Objective: Describe the dangers of high blood pressure

BR: Fill in the blanks. For arteries __________ blood flows __________ the heart.

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Today’s Agenda:

• Circulatory System Recap

• Blood Pressure Notes

Blood Vessel Name

Direction of blood flow

Usual Color of blood

Why

Arteries

Veins

Away from heart

Towards heart

Red

Blue

Blood is oxygenated

Blood is unoxygenated

Pulmonic Circuit

Circulation of blood flow from the R side of to lungs to L side of

** Pulmonic = lungs!

Systemic Circuit

Circulation of blood flow from the L side of to tissues in rest of body to R side of

Blood Flow Through the Circulatory System

Tissues in rest

of body

P Veins

LAMV

LV

AVAorta

PA

PV

RV

SVC & IVC

RA

TVBLOODFLOW THROUGH THE HEART

Copy your class created flowchart into the one provided below. Use abbreviations (ex: Left Atrium = LA). When finished, use a red and blue colored pencil to indicate by outlining the box if blood flowing through

here is oxygenated (red) or unoxygenated (blue).

Cornell Notes

• Topic/Title: Blood Pressure

Vital Signs

Taken to measure how the body is functioning

1. Temperature2. Respiratory Rate (breathing rate)3. Pulse4. Blood Pressure

PulseThe pulse you feel when placing two fingers on

your wrist is your left ventricle contracting or squeezing.

Blood Pressure

• The pressure needed to move blood through the body’s blood vessels. – varies depending on age, diet, obesity, heredity,

race, stress, and gender.

Blood PressureA normal adult blood pressure is:

_____________120

80

The top number is called systolic pressure. This is measured when the heart is contracting.

The bottom number is called diastolic pressure. This is measured when the heart is relaxing.

High Blood Pressure

• A person with a systolic reading of anything higher than 140 mmHg, is considered to have hypertension, or high blood pressure

Low Blood Pressure

• A person with a systolic reading of anything lower than 100 mmHg, is considered to have hypotension, or low blood pressure.

Blood Pressure:

_____________160

80

What do you know about a person with this blood pressure?

This person has high blood pressure because the systolic (top) number is above 140 mmHg

Dangers of High Blood Pressure

• Low life expectancy• Heart Attack• Stroke• Headaches• Weakened heart• Dizziness• Sweating

Summary

• Compare the blood pressure numbers for someone with high, low and normal blood pressure

• Summarize what can occur if someone has high blood pressure.

• Explain what a pulse is.