https://padlet.com/s3051621/p2px0ej7r07yns0g Vocabulary en-us 2023-05-18 17:35:04 UTC 2025-11-08 21:13:49 UTC hello@padlet.com s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596587655 The blood circulatory system is a system of organs that include the heart, blood vessels, and blood which is circulated throughout the entire body of a human. The cardiovascular system plays an important role in helping the body meet the demands of activity, exercise, and stress.]]> 2023-05-18 17:44:55 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596587655 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596593329 It is the flow or movement of blood throughout the body. Blood carries oxygen, nutrients, and other substances from the heart, through the blood vessels, and the rest of the body's cells, organs, and tissues.]]> 2023-05-18 17:50:35 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596593329 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596599951 It is a blood vessel that carries oxygenated blood from the heart to the rest of the body. They have thick walls made of three layers of tissue and are designed to withstand the high pressure of blood being pumped from the heart. When an artery is blocked or damaged, it can lead to serious health problems such as heart attack or a stroke.]]> 2023-05-18 17:56:31 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596599951 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596604164 They are the smallest blood vessels in the body that connect arteries and veins. Capillaries are responsible for the exchange of oxygen and nutrients between the blood and tissues. They also remove carbon dioxide and waste products from the body.]]> 2023-05-18 18:00:18 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596604164 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596607823 Veins are blood vessels that carry blood from the body's tissues back to the heart. They have thinner walls than arteries and are often located closer to the surface of the skin. When veins become damaged or blocked, it can lead to a variety of health problems such as varicose veins or blood clots. ]]> 2023-05-18 18:03:47 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596607823 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596866260 A valve is a structure that controls the direction of fluid flow in a vessel or tube. In the human body, valves are found in the heart, veins, and lymphatic vessels. In the heart, valves prevent blood from flowing backward and help to maintain the flow of blood in one direction. In veins, valves help to prevent blood from flowing backward and pooling in the legs.]]> 2023-05-19 00:23:42 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596866260 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596873953 The respiratory system is responsible for talking in oxygen and expelling carbon dioxide from the body. When air enters the body through the nose or mouth, it passes through the pharynx and larynx and into the trachea. The trachea then splits into two bronchi, which lead to the lungs. In the lungs, oxygen is exchanged for carbon dioxide through a process called respiration. The oxygenated blood is then transported throughout the body by the circulatory system.]]> 2023-05-19 00:30:06 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596873953 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596881783 A muscular tube that connects the nasal and oral cavities to the larynx and esophagus. It plays an important role in both the respiratory and digestive systems. During breathing, air passes through the pharynx on its wat to the lungs. During swallowing, food and liquid pass through the pharynx on their way to the esophagus. The pharynx is divided into three parts which are the nasopharynx, oropharynx, and laryngopharynx. ]]> 2023-05-19 00:36:17 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596881783 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596890596 Larynx, also known as the voice box, its part of the respiratory system located in the neck. It contains the vocal cords. which are responsible for producing sound. The larynx also helps to protect the airway by preventing food and liquid from entering the lungs. When air passes through the larynx, it causes the vocal cords to vibrate, which produces sound. The sound can then be modified by the tongue, lips, and other structures in the mouth to form speech.]]> 2023-05-19 00:43:18 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596890596 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596905066 The diaphragm is a thin, dome-shaped muscle that separates the chest cavity from the abdominal cavity. It plays a key role in the process of breathing. When the diaphragm contracts, it moves downward, which increases the volume of the chest cavity and causes air to be drawn into the lungs. When the diaphragm relaxes, it moves upward, which decreases the volume of the chest cavity and causes air to be expelled from the lungs. The diaphragm is innervated by the phrenic nerve, which originates from the cervical spine.]]> 2023-05-19 00:55:29 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596905066 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596917578 The trachea, also known as the windpipe, is a tube that connects the larynx to the bronchi in the lungs. It is lined with small hairs called cilia, which help to filter out foreign particles and keep the airways clear. The trachea is also supported by a series of C-shaped cartilage rings, which help to keep it open and prevent it from collapsing. When air enters the trachea, it is warmed, moistened, and filtered before it reaches the lungs.]]> 2023-05-19 01:07:03 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596917578 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596932702 They are a pair of spongy, air-filled organs located in the chest. They are responsible for the process of respiration, which involves the exchange of oxygen and carbon dioxide between the body and the environment. When air is inhaled through the nose or mouth, it travels down the trachea and into the lungs, where it is distributed to the bronchioles and alveoli.]]> 2023-05-19 01:19:12 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596932702 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596941438 White blood cells are an important part of body's immune system. They are produced in the bone marrow and are responsible for defending the body against infections and diseases. There are several different types of white blood cells, each with its own specific function. White blood cells are also involved in the process of inflammation, which is the body's response to injury or infection.]]> 2023-05-19 01:26:13 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596941438 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596964359 Red blood cells are the most common type of blood cell in the body.  They are responsible for transporting oxygen from the lungs to the body's tissues and bringing it back to the lungs to be exhaled. Red blood cells contain a protein called hemoglobin, which binds to oxygen and gives the cells their characteristic red color.]]> 2023-05-19 01:45:40 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596964359 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596981167 Plasma is the liquid component of blood that makes up about 55% of its total volume. Its a yellowish fluid that is composed mainly of water, but also contains a variety of other substances such as proteins, electrolytes, hormones, and waste products. Plasma plays an important role in the body's immune system by transporting antibodies and other components throughout the body. It is also involved in the process of blood clotting, which helps to stop bleeding when a blood vessel is damaged.]]> 2023-05-19 01:58:31 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596981167 s3051621 https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596999826 The heart is a muscular organ that pumps blood throughout the body. It is located in the chest, between the lungs, and is roughly the size of a fist. The heart is divided into four chambers which are, the right atrium, right ventricle, left atrium, and left ventricle. Blood flows into the right atrium from the body and into the right ventricle, which pumps in=t to the lungs to be oxygenated. ]]> 2023-05-19 02:11:47 UTC https://padlet.com/s3051621/p2px0ej7r07yns0g/wish/2596999826