Tuesday, Feb 1, 2011

Objective: Compare Blood Components

BR: How are you going to make sure you are successful this semester?

Tuesday, Feb 1, 2011

Objective: Compare Blood Components

BR: How are you going to make sure you are successful this semester?

4 MINUTES REMAINING…

Tuesday, Feb 1, 2011

Objective: Compare Blood Components

BR: How are you going to make sure you are successful this semester?

3 MINUTES REMAINING…

Tuesday, Feb 1, 2011

Objective: Compare Blood Components

BR: How are you going to make sure you are successful this semester?

2 MINUTES REMAINING…

Tuesday, Feb 1, 2011Last chance to view BR – 1 min

Objective: Compare Blood Components

BR: How are you going to make sure you are successful this semester?

30 Seconds Remaining…

10 Seconds Remaining…

Time’s up! Put Bell Ringer in Folder

Today’s Agenda:

• Tracking Test Mastery

• Student Spotlight

• Blood Component Notes

Class Mastery Averages

•1st – 76.4% •2nd – 67.3%•5th – 72.7%•6th – 76.2%•7th – 80.0%

Congratulations 7th period for reaching the class goal of 80% mastery!!

Cornell Notes

Topic/Title: Blood Components

Blood

• The only fluid tissue in the human body• Classified as a connective tissue

Blood

Figure 10.1

Components of Blood

PLASMA (55%)

WHITE BLOOD CELLS & PLATELETS (>1%)

RED BLOOD CELLS (45%)

Components of Blood

FORMED ELEMENTS(Red & White Blood Cells and Platelets)

Blood Plasma

• ~ 90% water• Liquid part of blood–Nutrients–Hormones–Proteins

Formed Elements

• Erythrocytes = red blood cells• Leukocytes = white blood cells• Platelets = clotting cells

Photomicrograph of a Blood Smear

Figure 10.2

Erythrocytes (Red Blood Cells)

• Main function = carry oxygen

• Hematocrit = percentage of red blood cells in our body

Anemia• Someone is anemic if they

have:– A lower than normal amount

of red blood cells or– Not enough hemoglobin

• Sickle-cell anemia– Common in African

Americans– Sharp and spiky RBC low

oxygen

Above: Normal RBC

Below: Sickled RBC

Control of Erythrocyte Production

Figure 10.5

White blood cells and platelets:

• Make up less than 1% of the formed elements

• White blood cells (leukocytes) = fight infections

• Platelets = involved with blood clotting and wound repair

Summary

• Summarize what we learned today about blood!