A. Recall
Review students on the process of digestion of food. Point out that the formation of soluble substances is now ready for circulation and absorption of body cells.
B. Motivation
Tell the students to sit still and take their pulse rate for one minute at their wrist or on their neck beneath the jaw bone. Then, have them jog in place for 30 seconds and take their pulse rate again. Have them compare the two results they obtained. Ask them, what is the significance of this short activity? The answers can be pointed out during the post-lab activity.
Then, start the lesson by discussing the parts of the circulatory system, namely the heart, the blood vessels and the composition of blood. Let the students describe and state their function from what they have studied in their textbooks. Discuss both types of circulation and later the lymphatic system. Differentiate the function of the circulatory from the lymphatic system. Then, discuss the diseases affecting both systems including AIDS and emphasize ways to minimize them.
C. Activity
To develop their thinking skills, have the students discuss among themselves in groups the developmental questions being asked and let them answer the activity sheet provided for the topic.
D. Postlaboratory Discussion
Answers to Developmental Questions:
Question 1. Differentiate systemic from pulmonary circulation.
Question 2. What changes in composition of the blood take place in the lungs?
Question 3. Identify the source of blood that enters the following chambers of the heart.
Question 4. Where does the blood leaving the following chambers of the heart go?
Question 5. It is the largest blood vessel leaving the heart.
Question 6. To which organs or muscles do the following bring blood?
Question 7. What do the following terms mean?
Review students on the process of digestion of food. Point out that the formation of soluble substances is now ready for circulation and absorption of body cells.
B. Motivation
Tell the students to sit still and take their pulse rate for one minute at their wrist or on their neck beneath the jaw bone. Then, have them jog in place for 30 seconds and take their pulse rate again. Have them compare the two results they obtained. Ask them, what is the significance of this short activity? The answers can be pointed out during the post-lab activity.
Then, start the lesson by discussing the parts of the circulatory system, namely the heart, the blood vessels and the composition of blood. Let the students describe and state their function from what they have studied in their textbooks. Discuss both types of circulation and later the lymphatic system. Differentiate the function of the circulatory from the lymphatic system. Then, discuss the diseases affecting both systems including AIDS and emphasize ways to minimize them.
C. Activity
To develop their thinking skills, have the students discuss among themselves in groups the developmental questions being asked and let them answer the activity sheet provided for the topic.
D. Postlaboratory Discussion
Answers to Developmental Questions:
Question 1. Differentiate systemic from pulmonary circulation.
Question 2. What changes in composition of the blood take place in the lungs?
Question 3. Identify the source of blood that enters the following chambers of the heart.
Question 4. Where does the blood leaving the following chambers of the heart go?
Question 5. It is the largest blood vessel leaving the heart.
Question 6. To which organs or muscles do the following bring blood?
Question 7. What do the following terms mean?
E. Generalization
1. The main parts of the circulatory system are the heart, blood vessels, and blood.
2. The purpose of circulation is to deliver food, blood and oxygen through the capillaries, to the cells and also remove waste materials from cells.
3. The circulatory system involves the pulmonary and systemic circulations.
4. Human blood types differ in antigens and antibodies in the body.
5. The lymphatic system consists of lymphatic vessels and lymph. Its functions include carrying food and oxygen from blood to body cells not reached by capillaries and picking up waste material from cells and return them to the blood and helping the body fight infection and disease.
6. Medical and surgical procedures are available to control cardiovascular disease, but the best prevention is by following a heart-healthy diet, getting regular exercise, maintaining proper weight and not smoking cigarettes.
F. Valuing and Application
Ask students what diseases are associated with the circulatory system. The following terms may be explained:
a. Hypertension – excessively high blood pressure
1. Arteriosclerosis – accumulation of fatty materials like cholesterol in the lining of arteries
2. Stroke – associated with hypertension that occurs when blood vessel bursts in the brain and brain cells die due to lack of oxygen
d. Heart attack – also associated with hypertension and atherosclerosis that occurs when an artery in the heart bursts resulting to muscle damage or death
Then, tell the students about the medical and surgical procedures available to control cardiovascular diseases. This includes the Thrombolytic Therapy which includes two drugs that can be given intravenously to dissolve a clot in the blood vessel; Arterial Plaque which is a surgical procedure to clear clogged arteries and Heart Transplants (Donor or Artificial). After discussing these technologies, let the student realize the complexity of the processes. Encourage them to suggest ways on how to maintain a well functioning circulatory system. Medical and surgical procedures are available to control cardiovascular disease, but it could be prevented by having a heart-healthy diet, getting regular exercise, maintaining proper weight and not smoking.
V. Assessment
Use any three of these questions for the lesson assessment.
Multiple choice.
1. Which of the following is responsible for blood clotting?
a. fibrin c. fibrinogen
b. plasma d. thrombin
1. The main parts of the circulatory system are the heart, blood vessels, and blood.
2. The purpose of circulation is to deliver food, blood and oxygen through the capillaries, to the cells and also remove waste materials from cells.
3. The circulatory system involves the pulmonary and systemic circulations.
4. Human blood types differ in antigens and antibodies in the body.
5. The lymphatic system consists of lymphatic vessels and lymph. Its functions include carrying food and oxygen from blood to body cells not reached by capillaries and picking up waste material from cells and return them to the blood and helping the body fight infection and disease.
6. Medical and surgical procedures are available to control cardiovascular disease, but the best prevention is by following a heart-healthy diet, getting regular exercise, maintaining proper weight and not smoking cigarettes.
F. Valuing and Application
Ask students what diseases are associated with the circulatory system. The following terms may be explained:
a. Hypertension – excessively high blood pressure
1. Arteriosclerosis – accumulation of fatty materials like cholesterol in the lining of arteries
2. Stroke – associated with hypertension that occurs when blood vessel bursts in the brain and brain cells die due to lack of oxygen
d. Heart attack – also associated with hypertension and atherosclerosis that occurs when an artery in the heart bursts resulting to muscle damage or death
Then, tell the students about the medical and surgical procedures available to control cardiovascular diseases. This includes the Thrombolytic Therapy which includes two drugs that can be given intravenously to dissolve a clot in the blood vessel; Arterial Plaque which is a surgical procedure to clear clogged arteries and Heart Transplants (Donor or Artificial). After discussing these technologies, let the student realize the complexity of the processes. Encourage them to suggest ways on how to maintain a well functioning circulatory system. Medical and surgical procedures are available to control cardiovascular disease, but it could be prevented by having a heart-healthy diet, getting regular exercise, maintaining proper weight and not smoking.
V. Assessment
Use any three of these questions for the lesson assessment.
Multiple choice.
1. Which of the following is responsible for blood clotting?
a. fibrin c. fibrinogen
b. plasma d. thrombin
2. Which blood type can a type O patient receive?
a. A & B c. O
b. AB d. all blood types
3. Arteries have thicker muscular walls and are located deeper than veins. This is an example of structural adaptation since they transport blood which:
4. Which of the following is a condition where red blood cells cause the blood to stop circulating in small blood vessels?
a. coagulation c. hemolysis
b. agglutination d. haemophilia
5. Which blood cells produce antibodies?
a. erythrocytes c. lymphocytes
b. thrombocytes d. platelets
6. An instrument used to record coronary contraction that produces heartbeat is called:
a. ECG c. EEG
b. sphygmomanometer d. stethoscope
a. A & B c. O
b. AB d. all blood types
3. Arteries have thicker muscular walls and are located deeper than veins. This is an example of structural adaptation since they transport blood which:
4. Which of the following is a condition where red blood cells cause the blood to stop circulating in small blood vessels?
a. coagulation c. hemolysis
b. agglutination d. haemophilia
5. Which blood cells produce antibodies?
a. erythrocytes c. lymphocytes
b. thrombocytes d. platelets
6. An instrument used to record coronary contraction that produces heartbeat is called:
a. ECG c. EEG
b. sphygmomanometer d. stethoscope
7. Which of the following conditions is otherwise known as “hardening of the arteries?”
a. arteriosclerosis c. stroke
b. myocardial infarction d. hypertension
8. Which type of blood vessel carries blood away from the heart?
a. vein c. artery
b. venule d. superior vena cava
a. arteriosclerosis c. stroke
b. myocardial infarction d. hypertension
8. Which type of blood vessel carries blood away from the heart?
a. vein c. artery
b. venule d. superior vena cava
Agreement:
Do advance readings to answer these questions.
1. How does our nervous system function?
2. How do nerve impulses travel along our nerves?
C. 3. What are the diseases associated with the nervous system?
Activity 5. Circulation in Man
The circulatory and lymphatic systems function to transport food and other materials to the different parts of the body. The lymphatic system further aid the transport system by helping the body fight infection by removing disease-causing organisms in the body.
Objectives
1. To identify the pathways of blood and lymph in our body
2. To compare the structure and function of the circulatory and with the lymphatic systems
Materials
Ballpen
Paper
Procedure
1. Study the illustration below and answer the following questions correctly:
Question 1. Differentiate systemic from pulmonary circulation.
_________________________________________________________
Question 2. What changes in composition of the blood take place in the lungs?
_________________________________________________________
Question 3. Refer to the illustration above. Identify the source of blood that enters the following chambers of the heart.
a. right atrium c. left atrium
b. right ventricle d. left ventricle
Question 4. Where does the blood leaving the following chambers of the heart go?
a. right ventricle
b. left ventricle
Question 5. It is the largest blood vessel leaving the heart.
____________________________________
Question 6. To what organs or muscles do the following bring food?
a. renal arteries
b. pulmonary arteries
c. coronary arteries
Question 7. Describe the following terms:
a. heartbeat
b. pulse
c. blood pressure
Question 8. Compare the blood vascular system and the lymphatic system by filling up the table below:
Basic of Comparison
Blood vascular system
Lymphatic system
a. Circulating fluid
b. The tube to which the fluid flows
c. Type of tube system
Question 9. Explain the role of lymph nodes in the body.
___________________________________
Do advance readings to answer these questions.
1. How does our nervous system function?
2. How do nerve impulses travel along our nerves?
C. 3. What are the diseases associated with the nervous system?
Activity 5. Circulation in Man
The circulatory and lymphatic systems function to transport food and other materials to the different parts of the body. The lymphatic system further aid the transport system by helping the body fight infection by removing disease-causing organisms in the body.
Objectives
1. To identify the pathways of blood and lymph in our body
2. To compare the structure and function of the circulatory and with the lymphatic systems
Materials
Ballpen
Paper
Procedure
1. Study the illustration below and answer the following questions correctly:
Question 1. Differentiate systemic from pulmonary circulation.
_________________________________________________________
Question 2. What changes in composition of the blood take place in the lungs?
_________________________________________________________
Question 3. Refer to the illustration above. Identify the source of blood that enters the following chambers of the heart.
a. right atrium c. left atrium
b. right ventricle d. left ventricle
Question 4. Where does the blood leaving the following chambers of the heart go?
a. right ventricle
b. left ventricle
Question 5. It is the largest blood vessel leaving the heart.
____________________________________
Question 6. To what organs or muscles do the following bring food?
a. renal arteries
b. pulmonary arteries
c. coronary arteries
Question 7. Describe the following terms:
a. heartbeat
b. pulse
c. blood pressure
Question 8. Compare the blood vascular system and the lymphatic system by filling up the table below:
Basic of Comparison
Blood vascular system
Lymphatic system
a. Circulating fluid
b. The tube to which the fluid flows
c. Type of tube system
Question 9. Explain the role of lymph nodes in the body.
___________________________________
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