Fun Facts About Blood The body of an adult contains over 60,000 miles of blood vessels! An adult's heart pumps nearly 4000 gallons of blood each day! Your heart beats some 30 million times a year! The average three-year-old has two pints of blood in their body; the average adult at least five times more! A "heartbeat" is really the sound of the valves in the heart closing as they push blood through its chambers. http://yucky.discovery.com/flash/body/pg000131.html

The body of an adult contains over 60,000 miles of blood vessels!

An adult's heart pumps nearly 4000 gallons of blood each day!

Your heart beats some 30 million times a year!

The average three-year-old has two pints of blood in their body; the average adult at least five times more!

A "heartbeat" is really the sound of the valves in the heart closing as they push blood through its chambers. http://yucky.discovery.com/flash/body/pg000131.html

Blood! Blood: 4 components: plasma, red blood cells, white blood cells, platelets Plasma Liquid component of blood Mostly water Dissolved materials Glucose Wastes Proteins

Blood: 4 components: plasma, red blood cells, white blood cells, platelets

Plasma

Liquid component of blood

Mostly water

Dissolved materials

Glucose

Wastes

Proteins

2. Red Blood Cells a. Deliver O 2 to cells b. Protein called hemoglobin binds O 2 1. Turns bright red when it binds is released in tissues through capillaries RBC have no nuclei  can’t repair or reproduce Every second 2 million die! Produced in bone marrow

a. Deliver O 2 to cells

b. Protein called hemoglobin binds O 2

1. Turns bright red when it binds

is released in tissues through capillaries

RBC have no nuclei  can’t repair or reproduce

Every second 2 million die!

Produced in bone marrow

3. White Blood Cells Disease fighters Produced in bone marrow Not as many as RBC (1 RBC:500 WBC) Have nuclei

Disease fighters

Produced in bone marrow

Not as many as RBC (1 RBC:500 WBC)

Have nuclei

4. Platelets Cell fragments release chemicals when we are cut Chain reaction forms a fibrin net Fibrin net patches up the hole and stops bleeding Scab is a blood clot

Cell fragments release chemicals when we are cut

Chain reaction forms a fibrin net

Fibrin net patches up the hole and stops bleeding

Scab is a blood clot

B. Blood Types 4 types: A, AB, B, O Named by types of markers found on surface of RBCs a. how our body recognizes our own blood If a person with type A blood receives a transfusion of B blood, then proteins in our blood will clump that foreign blood  dangerous O can receive any type of blood  no markers on surface

4 types: A, AB, B, O

Named by types of markers found on surface of RBCs

a. how our body recognizes our own blood

If a person with type A blood receives a transfusion of B blood, then proteins in our blood will clump that foreign blood  dangerous

O can receive any type of blood  no markers on surface

C. Rh Factor 1. Another type of protein on the surface of RBCs called Rh factor 85% of people are Rh + 15% of people are Rh –

1. Another type of protein on the surface of RBCs called Rh factor

85% of people are Rh +

15% of people are Rh –

D. The Lymphatic System Some of the liquid part of blood leaks out of blood vessels. This liquid enters the lymphatic system. a. A system of veinlike vessels that returns the liquid to the bloodstream.

Some of the liquid part of blood leaks out of blood vessels.

This liquid enters the lymphatic system.

a. A system of veinlike vessels that returns the liquid to the bloodstream.

Pulse Rate Activity 1. With a partner, determine your resting pulse rate. Count the number of beats in your pulse for exactly 30 seconds while your partner times you. Multiply this number by 2 and record your resting pulse in your data table. 2. Run or jump in place for 1 minute while your partner times you. Take pulse again and record results. 3. Sit down and have partner time rest for 1 minute. Take pulse again and record results.

1. With a partner, determine your resting pulse rate. Count the number of beats in your pulse for exactly 30 seconds while your partner times you. Multiply this number by 2 and record your resting pulse in your data table.

2. Run or jump in place for 1 minute while your partner times you. Take pulse again and record results.

3. Sit down and have partner time rest for 1 minute. Take pulse again and record results.