Major organs of the body-Brain
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The document discusses the major organs of the body, focusing on the brain as the control center that receives, integrates, stores, and retrieves information to send to other parts of the body. It describes the brain as being protected by the skull and composed of neurons that carry electrical signals. The brain has three main parts - the cerebrum, cerebellum, and medulla - with the cerebrum controlling voluntary movements and senses, the cerebellum controlling balance and coordination, and the medulla connecting the brain to the spinal cord and controlling involuntary functions like breathing and heart rate.
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The nervous system controls activities through electrical impulses in response to stimuli. Receptors receive stimuli and initiate responses. The main receptors are gustatory, thermoreceptors, olfactory, photoreceptors, and phonoreceptors. Neurons have a cell body, dendrites that receive impulses, and an axon that carries impulses. Impulses travel between neurons at synapses. The brain has a forebrain, midbrain, and hindbrain. The forebrain includes the cerebrum, thalamus, and hypothalamus, and controls voluntary actions and processes sensory information. The cerebrum has four lobes and is divided into left and right hemispheres. The
Central Nervous system
Our nervous system allows us to perceive and control our body's activities. It consists of the brain, spinal cord, and nerves throughout the body. The brain acts as the control center, receiving signals from and sending signals to different parts of the body via the network of nerves. The human nervous system can be divided into the central nervous system of the brain and spinal cord, and the peripheral nervous system which carries messages between the central system and body organs.
Nervous system SSAS
The document discusses the nervous system and its major parts and functions. It notes that the brain is the command center of the nervous system and stores and processes information. It describes how the nervous system helps with smell, taste, hearing, reflexes, touch, and body movement by receiving messages and telling organs like the heart and lungs what to do. It also discusses how the nervous system interacts with other systems like muscles and the circulatory system to maintain homeostasis and how diseases and injuries can impact the nervous system.
Presentation12
The nervous system coordinates all body functions by receiving sensory input, processing information, and ordering responses. It consists of neurons and neuroglial cells. The central nervous system includes the brain and spinal cord and processes information from around the body. The brain coordinates most activities and is responsible for functions like temperature regulation. The peripheral nervous system includes cranial and spinal nerves. The autonomic nervous system controls involuntary functions like heart rate.
THE-NERVOUS-SYSTEM.pdf
The document discusses the nervous system, which is made up of the central nervous system (brain and spinal cord) and peripheral nervous system. The central nervous system receives sensory information and controls responses through the brain and spinal cord. It is divided into the forebrain, midbrain, and hindbrain. The peripheral nervous system connects the central nervous system to the rest of the body through nerves and is divided into the somatic and autonomic systems. Common nervous system diseases include Alzheimer's disease, which causes memory loss and cognitive decline, and epilepsy, which involves seizures.
Nervous System Lesson for Grade 6 in Science
1) The document discusses the nervous system, which controls other parts of the body and receives signals from inside and outside the body. It describes the main parts of the nervous system including neurons, the central nervous system, and the peripheral nervous system.
2) The central nervous system is made up of the brain and spinal cord. The brain is divided into the cerebrum, cerebellum, and brain stem. The cerebrum controls higher thought processes while the cerebellum controls muscle coordination.
3) The peripheral nervous system includes all nerves outside the brain and spinal cord, carrying signals between the central nervous system and other parts of the body. It is made up of sensory nerves which receive stimuli and motor
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The_Body_s_Control_System.pptx;filename= UTF-8''The Body_s Control System.pptx
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- 1. Major Organs of the Body Part 1-Brain Grade 4
- 2. Your body is carefully organized to carry out all your life activities. The organs systematically work together to keep you alive and active. Each organ plays a specific role related to your health and development.
- 3. Let’s watch this video!
- 4. It is the control center of your body. 1. Brain It is able to receive, integrate, store and retrieve information. It sends information to the other parts of the body.
- 5. The brain was protected by the skull. It is composed of cells called neurons, which carry electrical signals called impulses.
- 6. The brain has three connected parts: Cerebrum Cerebellum Medulla It is the largest part of the brain. It controls voluntary movements and detects touch, light, sound, odor, taste, pain, heat and cold. It receives sensory impulses from the muscles and joints. It controls balance, posture, and coordination. It connects the brain to the spinal cord. It controls your blood pressure, heart rate, involuntary breathing, and some other involuntary activities.
- 8. Thank you!