The Circulatory System Lesson 2: Standard 9a. Students know how the complementary activity of major...

The Circulatory System

Lesson 2: Standard 9a. Students know how the complementary activity of major body systems provides cells with oxygen and nutrients and removes toxic waste products such as carbon dioxide

What have we learned so far?

• The definitions of specialized cells, tissues, organs, and organ systems

• The body is kept in homeostasis (balance) by the actions of different organ systems working together

• Feedback inhibition is the mechanism for maintaining homeostasis in the body

Parts of the Circulatory System

The human circulatory system consists of• the ___________• the ___________• blood

_________ _________ _________ _________


The human circulatory system consists of• the heart• the ___________• blood

_________ _________ _________ _________


The human circulatory system consists of• the heart• the blood• blood

_________ _________ _________ _________


The human circulatory system consists of• the heart• the blood• blood vessels

_________ _________ _________



veins _________ _________



veins arteries

_________



veins arteries

capillaries

Check for UnderstandingUsing your iPads, go to www.awwapp.com to get to the online whiteboard

Write in the answer to question 1 and hold your iPads so I can see them.

1. What are the three main parts of the circulatory system?

Now tap the menu button and tap clear to clear your whiteboard and answer question 2. Hold up your iPads when you are finished so I can see them.

2. What are the three types of blood vessels in the human circulatory system?

http://www.awwapp.com/

Blood Vessels• ______________

– carry oxygen-rich blood away from the heart and to the body

– have thicker walls to withstand higher blood pressure

• ______________– carry oxygen-poor blood to

the heart– have valves to prevent blood

from flowing back in the wrong direction

• ______________– are the smallest blood vessels– so narrow that blood cells

pass through in a single file– deliver oxygen and nutrients

to all cells of the body

Blood Vessels• arteries



• ______________– carry oxygen-poor blood to









• veins– carry oxygen-poor blood to









• veins– carry oxygen-poor blood to



• capillaries– are the smallest blood vessels– so narrow that blood cells



Check for Understanding

Using awwapp again, answer these questions one at a time.

1. Why do arteries need to be thicker than veins?2. Why do veins need to have valves?3. Which blood vessels carry blood to the heart?4. Which blood vessels carry blood away from the

heart?

Blood

Blood is made of:• A liquid called

____________• Red blood cells,

also called ____________

• White blood cells, also called ____________

• ____________, also called thrombocytes

Blood


plasma• Red blood cells,

also called ____________



Blood



also called erythrocytes



Blood




• White blood cells, also called leukocytes

• ___________, also called thrombocytes

Blood




• White blood cells, also called leukocytes

• Platelets, also called thrombocytes

Blood Cells

• Red blood cells have no __________. They contain a protein called ____________ that carries ____ to cells and ____ away from cells.

• White blood cells help the body fight off ___________. There are many different types of white blood cells

• Platelets are cell __________ that help with blood _______

Blood Cells

• Red blood cells have no nucleus. They contain a protein called ____________ that carries ____ to cells and ____ away from cells.



Blood Cells

• Red blood cells have no nucleus. They contain a protein called hemoglobin that carries ____ to cells and ____ away from cells.



Blood Cells

• Red blood cells have no nucleus. They contain a protein called hemoglobin that carries O2 to cells and ____ away from cells.



Blood Cells

• Red blood cells have no nucleus. They contain a protein called hemoglobin that carries O2 to cells and CO2 away from cells.



Blood Cells


• White blood cells help the body fight off infections. There are many different types of white blood cells


Blood Cells



• Platelets are cell fragments that help with blood _______

Blood Cells



• Platelets are cell fragments that help with blood clotting


Using awwapp, answer these questions one at a time

1. What would happen to you if some or all of your hemoglobin was damaged?

2. What would happen to you if your white blood cells died or stopped working?

3. What would happen to you if your platelets were missing or damaged?

The HeartLabel the chambers, valves, veins, and arteries

Blood Flow Through the Heart

Draw arrows to trace the flow of blood through the heart



1. Where does oxygen-poor blood enter the heart?

2. Where does oxygen-rich blood exit the heart?

3. How many chambers are in the heart?

Blood Circulation Through the Body

• The right side of the heart pumps blood from the heart to the lungs. This is called ________________ circulation.

• In the lungs, CO2 in the blood is _______________ for O2

• Oxygen-rich blood flows from the lungs, into the left side of the heart, and to the rest of the body. This is called _______________ circulation.


• The right side of the heart pumps blood from the heart to the lungs. This is called pulmonary circulation.

• In the lungs, CO2 in the blood is _______________ for O2




• In the lungs, CO2 in the blood is exchanged for O2




• In the lungs, CO2 in the blood is exchanged for O2

• Oxygen-rich blood flows from the lungs, into the left side of the heart, and to the rest of the body. This is called systemic circulation.



• Which system carries oxygen rich blood – systemic or pulmonary?

• Which system carries oxygen poor blood back to the heart?

Making a Set on Quizlet• Log in to quizlet.com • If you have not signed up for quizlet, go to my page on the Stern

MASS website. Scroll down until you find the directions for joining quizlet. Make sure you join the right class.

• At the top of the page, tap on “Create a set”• Enter in the set title and description (YOU get to choose what

to name these)• Find the definitions or descriptions of the following words in the

textbook or using the internet and include them in your set:atrium, ventricle, pulmonary circulation, systemic

circulation, valve, aorta, vena cava, artery, capillary, vein, • Study your set for the rest of the class period. Make sure you

use all of the functions (except spell) – flashcards, learn, scatter, race, and test

The Circulatory System Lesson 2: Standard 9a. Students know how the complementary activity of major...

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