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Worksheet about Parts of the body | ||
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| Subject: Science | ||
| 4th Grade | ||
| Term 1 | ||
| Year: 2023/2024 | ||
| Size: 246KB | ||
| Number of clicks: 193 | ||
| Publish date:November 09, 2023 | ||
| Added by: Eman | ||
| Last download date: 2024-11-03 20:22:12 | ||
| Updated by: Eman9966 on 2023-11-09 10:34:58 | By: theodor Camila Florencia Fernandez Lopez | |
File info: In science, the human body is composed of various parts, each serving a specific function. Here are descriptions of some key parts of the body:1. Skeletal System: The skeletal system provides structure, support, and protection to the body. It consists of bones, joints, and cartilage. The bones serve as the framework, protect internal organs, and produce red and white blood cells. 2. Muscular System: The muscular system enables movement and locomotion. Muscles are responsible for contraction and relaxation, allowing us to perform physical activities. There are three types of muscles: skeletal muscles (voluntary), smooth muscles (involuntary), and cardiac muscles (found in the heart). 3. Nervous System: The nervous system controls and coordinates body functions. It consists of the brain, spinal cord, and nerves. The brain acts as the command center, interpreting information and sending signals to different parts of the body. Nerves transmit signals between the brain and other body parts. 4. Circulatory System: The circulatory system is responsible for transporting blood, oxygen, and nutrients throughout the body. It includes the heart, blood vessels, and blood. The heart pumps oxygenated blood to the body and deoxygenated blood to the lungs for oxygenation. 5. Respiratory System: The respiratory system facilitates the exchange of oxygen and carbon dioxide in the body. It consists of the lungs, airways, and respiratory muscles. Oxygen is inhaled through the nose or mouth, passes through the airways, and reaches the lungs where it is transferred to the bloodstream. 6. Digestive System: The digestive system processes and breaks down food to extract nutrients for energy and growth. It includes the mouth, esophagus, stomach, intestines, liver, and pancreas. Digestion starts in the mouth, where food is chewed and mixed with saliva, and continues through the stomach and intestines. 7. Endocrine System: The endocrine system regulates and controls body functions through the production and release of hormones. It includes glands such as the pituitary, thyroid, adrenal, and reproductive glands. Hormones act as chemical messengers, affecting various processes and maintaining homeostasis. 8. Reproductive System: The reproductive system is responsible for the production of offspring. In males, it includes the testes, penis, and associated structures. In females, it comprises the ovaries, uterus, fallopian tubes, and vagina. These are just a few examples of the many intricate and interconnected parts of the human body. Each part plays a vital role in maintaining overall health and functioning. | ||
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