Human body
- 1. Hello everyone my name is Aarvin Gupta, so in this presentation I would show u that how human body works .
- 2. To understand human body we have to understand it’s organ systems for eg. Digestive, respiratory, circulatory systems etc. So lets get started.
- 3. There are 11 major systems in a human body which are the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems. But I have studied only 7 types of systems which are the following :
- 4. 1. Digestive System 2. Respiratory System 3. Circulatory System 4. Nervous System 5. Muscular System 6. Skeletal System 7. Excretory System
- 5. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has 5 stages. In simple words the organs that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair. Waste products the body cannot use leave the body through bowel movements. Images shown on next slide.
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- 7. Respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. Humans have two type of respiration aerobic and anaerobic respiration. It also cleans waste gases, such as carbon dioxide, from your blood. Common problems include allergies, diseases or infections. Human respiratory system includes the following
- 9. The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. It includes heart, blood, blood vessels etc.
- 11. The nervous system is the part of an animal's body that coordinates its behavior and transmits signals between different body areas. In vertebrates it consists of two main parts, called the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain and spinal cord. The PNS contains The nerves that branch off from the spinal cord and extend to all parts of the body. It contains brain, spinal cord, nerves and sense organs.
- 13. The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture and circulates blood throughout the body. It contains muscles and tendons.
- 15. The skeletal system includes all of the bones and joints in the body. Each bone is a complex living organ that is made up of many cells, protein fibers, and minerals. The skeleton acts as a scaffold by providing support and protection for the soft tissues that make up the rest of the body. It includes bones, cartilage, ligaments, bone marrow.
- 17. The excretory system is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes. The Excretory system is responsible for the elimination of wastes produced by homeostasis.
- 19. NOW WE WILL SEE THAT HOW THESE ALL ORGAN SYSTEM WORKS
- 20. Now lets learn what is biological organisation. That how ecosystem is formed. First comes the cell, group of cells form tissue then group of tissues form organs then group of it forms organ system and group of it forms a human body then comes a population and then different population form a community and this forms ecosystem
- 21. ACCORDING TO ME THE MOST WANTED ORGANS OF A HUMAN BODY ARE THE BRAIN AND HEART . NOW I WILL EXPLAIN THERE FUNCTIONS.
- 22. It's the muscle at the center of your circulation system, pumping blood around your body as your heart beats. This blood sends oxygen and nutrients to all parts of your body, and carries away unwanted carbon dioxide and waste products. So The four major functions of the heart are: •To transport nutrients, gases and waste products around the body. •To protect the body from infection and blood loss. •To help the body maintain a constant body temperature ('thermoregulation') •To help maintain fluid balance within the body.
- 23. The brain controls our thoughts, memory and speech, movement of the arms and legs, and the function of many organs within our body. The central nervous system (CNS) is composed of the brain and spinal cord. Functions of a Brain are : •Attention and concentration. •Self-monitoring. •Organization. •Speaking (expressive language) •Awareness of abilities and limitations. •Mental flexibility. •Inhibition of behavior.
- 24. 1.Eat healthy. 2.Get active. 3.Stay at a healthy weight. 4.Quit smoking and stay away from secondhand smoke. 5.Control your cholesterol and blood pressure. 6.Drink alcohol only in moderation. 7.Manage stress.
- 25. 1.Exercise your body. Research shows that exercise: ... 2.Exercise your brain. If you want to stay sharp, use your brain now, and don't stop. ... 3.Eat a healthy diet. A healthy diet will help keep your brain healthy, and help your heart, too. ... 4.Socialize.