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Chapter 2 Circulation and Respiration Vocabulary Cardiovascular System Heart, Blood and Blood Vessels Artery blood carried away from the heart Vein carries.

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Presentation on theme: "Chapter 2 Circulation and Respiration Vocabulary Cardiovascular System Heart, Blood and Blood Vessels Artery blood carried away from the heart Vein carries."— Presentation transcript:

1 Chapter 2 Circulation and Respiration Vocabulary Cardiovascular System Heart, Blood and Blood Vessels Artery blood carried away from the heart Vein carries blood to the heart

2 blood flows from the heart to the lungs and back to the heart Pulmonary Circulation Systemic Circulation blood flows from the heart to all parts of the body and back to the heart Section 1: The Cardiovascular System

3 Section 1 The Cardiovascular System Heart The heart is the organ made mostly of cardiac muscle. The Cardiovascular System: 1. Helps maintain homeostasis. 2. Helps in regulation by chemical signals called hormones. 1. What is the Heart muscle called?_____________ ligament cardiac

4 carries blood to the heart Vein Veins: Valves in the veins keep the blood from flowing backward. 1. Veins keep the blood flowing. 2. Veins carry blood to the heart. 1. What carries blood to the heart?_____________ veins oxygen http://www.youtube.com/watch?v=GbttJ- 5do9M Click on the blue button to watch a video on the Heart.

5 Artery blood carried away from the heart Arteries: Arteries have thick walls that contain muscle. 1. Artery walls stretch. 2. Arteries are strong to stand pressure. 1. What do the walls do in the artery?________________ stretch break 2. Arteries stand pressure because they are?___________________ weak strong

6 Blood fluid that carries nutrients and wastes Blood Pressure force of blood Section 2: Blood

7 Blood fluid that carries nutrients and wastes Red Blood Cells The fluid part of the blood is called Plasma. Plasma contains: 1) Red blood cells 2) White blood cells 3) Platelets Red blood cells take oxygen to every cell in your body. Hemoglobin is an oxygen-carrying protein. Platelets are pieces of larger cells found in bones. White blood cells keep you healthy by destroying pathogens. http://www.youtube.com/watch?v=vEmsaXA-go0 Click on blue button to watch a video on blood and platelets.

8 Blood Pressure force of blood Blood pressure cuff Blood pressure is given as two numbers: Systolic: 1st number: is the pressure inside large arteries when the ventricles contract. Diastolic: 2nd number: is the pressure inside arteries when the ventricles relax. Each person has one of four blood types: A, B, AB, O http://www.sciencekids.co.nz/videos/humanbody/heart.html Click on the blue button to watch a video on the heart.

9 Section 3: The Lymphatic System The Lymphatic System collects excess fluid and returns it to your bloodstream. Bone Marrow soft tissue inside the bone Tonsils lymphatic tissue at the back of the mouth on either side of the tongue

10 Bone Marrow soft tissue inside the bone Most red and white blood cells are produced in your bone marrow. Bone marrow is located inside the bone. http://www.youtube.com/watch?v=P_d0ykpzQgY Click the blue button to watch a video on how the blood pumps. http://www.youtube.com/watch?v=xpsGsfuffEM Click the blue button to watch a video on red blood cells. 1) Where is bone marrow located?_________ inside outside 2) What is produced in the marrow?_________ blood cells lymph nodes

11 Tonsils lymphatic tissue at the back of the mouth on either side of the tongue Tonsils help the body defend against infection. Sometimes tonsils can become sore and swollen. If a child has frequent infections or has enlarged tonsils, a doctor will remove the tonsils. 1) What helps your body against infection?_______________ tonsils healthy eating

12 Section 4: The Respiratory System Respiration The process where the body gets oxygen and releases carbon dioxide Pharynx Throat Larynx The part of the throat that contains the vocal cords Trachea The tube that connects the larynx to the lungs

13 Respiration The process where the body gets oxygen and releases carbon dioxide Breathing: Inhaling & Exhaling - Chemical reactions that release energy from food. - You need to breathe to live. Cellular Respiration 1) What do you need to live?_______________ _ breathing a dog 2) What do you inhale?______________ 3) What do you exhale?____________ oxygen carbon dioxide oxygen Blowing up a balloon is exhaling.

14 Pharynx Throat Food and drink travel through the pharynx on the way to the stomach. A) The pharynx branches into two tubes. B) One tube is the esophagus and the other is the larynx. C) The esophagus leads to the stomach. D) The larynx leads to the lungs. 1. What tube leads to the stomach?_____________ esophagus lungs

15 Larynx The part of the throat that contains the vocal cords The vocal cords are a pair of elastic bands that stretch across the larynx. A) Muscles connected to the larynx control how much the vocal cords are stretched. B) When air flows between the vocal cords, the cords vibrate. C) These vibrations make sound. Click on the blue button to watch a video on sound. http://www.youtube.com/watch?v=xH8mT2IQz7Y larynx 1) Why do vocal cords vibrate?____________ air flow liquid flow 2) What makes sound?______________ vibrations elastic bands 1

16 Trachea The tube that connects the larynx to the lungs The Trachea is also known as your windpipe. A) Your body has two, large spongelike lungs. B) The trachea is the passageway for air traveling from the larynx to the lungs. 1) What is the passageway for air?____________________ trachea esophagus 2) the trachea is also known as the?___________________ windpipe esophagus


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