UNIT 3 The Circulatory System Mr. Scisly 6th Grade Health

LESSON #1 WARM-UP ACTIVITY 1) What is the most important muscle in the body? Why? 2) What does the Circulatory System do?

LESSON #1 GOALS Today’s goal is to understand the function of the circulatory and the importance of the heart.

Circulatory System

Preview Video Questions 1) What does the blood transport that our body needs? 2) What does the body transport that our body needs to get rid of? 3) What result from eating a diet high in fat? 4) How does and an athlete’s heart differ from a non-athlete’s heart?

Circulatory System What does it do? It carries needed substances to cells and carries waste products away from cells.

Lesson #1 Guided Practice Work on the “Body’s Transportation System” Handout in your group.

LESSON #2 WARM-UP ACTIVITY Pre-Test: ON YOUR OWN, try to label the parts of the heart on the worksheet using the word bank.

LESSON #2 GOALS By the end of the period today, you will be able to label a heart diagram and also the understand the functions of various parts of the heart. (Atrium, Ventricle, Septum, Valve, Pacemaker)

What Is the Heart? A Hollow Muscular organ that pumps blood throughout the body.

The Parts of the Heart Septum- Thick muscular wall that separates the right and left sides of the heart Atrium- Two upper collecting chambers of the heart Ventricles- Two lower pumping chambers of the heart Valve- A flap of tissue that prevents blood from flowing backward Pacemaker- Located in the right atrium and sends out signals that make the heart muscle contract

Lesson #2 Guided Practice In your group, check your diagram of the heart and see if you labeled all of the parts correctly. If some parts are incorrect, fix it.

LESSON #3 WARM-UP ACTIVITY ON YOUR OWN, answer the following question. The blood travels through the body through two loops. The right and left sides of the heart are separate pumps. Where do they pump the blood to?

Today’s goal is to understand the path of blood through the body. LESSON #3 Goals Today’s goal is to understand the path of blood through the body. By the end of the period today, you will be able to label a diagram to demonstrate your understanding of the path of blood.

The Path of Blood Two Types of Circulation 1) Pulmonary Circulation 2) Systemic Circulation

Pulmonary Circulation Vena Cava Right Atrium Tricuspid Valve Right Ventricle Pulmonary Arteries Lungs Pulmonary Veins Bicuspid Valve

Systemic Circulation Left Atrium Bicuspid Valve Left Ventricle Aorta Smaller and Smaller Arteries Capillaries Veins Vena Cava Bicuspid Valve

Lesson #3 Guided Practice In your group, label the chart detailing the Path of Blood.

LESSON #4 WARM-UP ACTIVITY In your group, label the functions of the Right Atrium, Left Atrium, Right Ventricle, and Left Ventricle in your packet.

THE PATH OF BLOOD THROUGH THE BODY

Review the Path of Blood LESSON #4 Goals Today we will complete the following tasks: Review the Path of Blood Demonstrate an understanding of the difference between the three types of blood vessels

Chambers of the Heart Right Atrium- Receives blood from the body. The blood is low in oxygen and high in waste products. Right Ventricle- Pumps blood with low-oxygen to the lungs Left Atrium- Receives oxygen-rich blood from the lungs Left Ventricle- Pumps blood with high oxygen to all parts of the body

Blood Vessels 3 Types Arteries 2) Veins 3) Capillaries

Arteries Arteries- Blood vessels that carry blood away from heart Aorta- The largest blood vessel in the body, carries blood from the left ventricle to the body Coronary Arteries- Blood vessels that carry blood to the heart itself

Pulse Heartbeats per minute

Veins Veins- Blood vessels that carry blood back to the heart Vena Cava- Largest vein in the body, returns oxygen poor blood to the heart

Capillaries Capillaries- Blood vessels where materials are exchanged between the blood and body’s cells

Sphygmomanometer An instrument used to measure blood pressure.

Lesson #4 Guided Practice EXIT SLIP On your note card, explain the difference between veins, capillaries, and arteries. **You may not use your books or notes!

LESSON #5 WARM-UP ACTIVITY In your groups, answer the following questions: What is blood pressure a measure of? What is normal blood pressure? What is a sphygmomanometer?

LESSON #5 Goals Our goal today is to be able to identify and define the parts of blood and also some various diseases of the circulatory system.

Plasma Red Blood Cells Platelets White Blood Cells 4 Components of Blood Plasma Red Blood Cells Platelets White Blood Cells

Plasma Liquid Part of the Blood

Take up oxygen and deliver it to cells Red Blood Cells Take up oxygen and deliver it to cells

The body’s disease fighters White Blood Cells The body’s disease fighters

Play an important role in blood clots. Platelets Play an important role in blood clots.

Lesson #5 Guided Practice In your groups, use your book to find the definitions for atherosclerosis, hypertension, and heart attack. In addition, come up with three ways to prevent heart problems. *Pages 98-102 in the book*

Bicuspid Valve