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ANATOMY OF FLOWERING PLANTS

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  What is Plant Anatomy? Plant anatomy is the study of internal structure and organization of tissues in plants. It helps in understanding: Functional adaptation Transport system Growth patterns Tissue Organization in Flowering Plants Flowering plants have three major tissue systems :  Epidermal Tissue System Components: Epidermis Single layer of compact cells No intercellular spaces Covered by cuticle (except roots) Cuticle Made of cutin Prevents water loss Stomata Present mainly on leaves Composed of guard cells Regulate: Gas exchange Transpiration Root hairs Extensions of epidermal cells Increase surface area for absorption Trichomes (in stem) Hair-like structures Protection + reduce transpiration  Functions: Protection Water conservation Gas exchange 🌿 B. Ground Tissue System  Types of Ground Tissue: 1. Parenchyma Living cells, thin cell wall Large vacuole Functions: Storage Photosynthesis ( chlorenchyma ) Air storage ( aerenchyma ) 2. Collenchyma Living cell...
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SENSORY SYSTEM

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 The sensory system in humans is a complex network of organs and receptors that work together to gather information about the world around us. This system allows us to perceive and interpret sensations, such as sight, sound, touch, taste, and smell, which are then processed in the brain to form our perception of the world.

The five primary senses in humans are vision, hearing, touch, taste, and smell. The eyes, ears, skin, taste buds, and olfactory receptors are responsible for detecting and processing sensations in these areas, respectively.

The eyes, located in the front of the head, are the primary organ for vision. They contain specialized cells called photoreceptors, which detect light and send signals to the brain, allowing us to see. The ears, located on either side of the head, are the primary organ for hearing. They contain specialized cells called hair cells, which detect sound waves and send signals to the brain, allowing us to hear.

The skin, the largest organ in the body, is the primary organ for touch. It contains specialized nerve endings called tactile receptors, which detect pressure, temperature, and pain sensations. The taste buds, located on the tongue, are the primary organ for taste. They detect the five basic tastes: sweet, sour, salty, bitter, and umami. The olfactory receptors, located in the nose, are the primary organ for the smell. They detect odors and send signals to the brain, allowing us to perceive different smells.

The sensory system works by converting sensory information into electrical signals, which are then transmitted to the brain for processing. The brain integrates these signals and forms our perception of the world, which is constantly changing based on the information received by our senses.

It's important to note that the sensory system is not just limited to the five primary senses. There are other sensory systems in the body, such as the vestibular system, which helps us maintain our balance and sense of spatial orientation, and the proprioceptive system, which helps us understand our body position in space.

In conclusion, the sensory system in humans is a complex and sophisticated network of organs and receptors that work together to gather information about the world around us. Our five primary senses, vision, hearing, touch, taste, and smell, are just a part of this system, and they allow us to perceive and interpret a wide range of sensations. Understanding the anatomy and function of the sensory system is essential for appreciating the amazing capability of our bodies to sense and interpret the world.

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