https://www.khanacademy.org/science/revision-term-1-ka-science-grade-9/x07cce91f26fedd3c:week-2/x07cce91f26fedd3c:tissues/v/squamous-epithelium 2023-02-17T10:37:20.19163475Z Squamous epithelium What does the squamous epithelium look like, where is it found, and what are its functions? Let's find out in this video. Moumita Sen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Squamous epithelium What does the squamous epithelium look like, where is it found, and what are its functions? Let's find out in this video. https://cdn.kastatic.org/ka-youtube-converted/UnDrKcVKMgk.mp4/UnDrKcVKMgk.mp4 307 Animal Tissues https://www.khanacademy.org/science/revision-term-1-ka-science-grade-9/x07cce91f26fedd3c:week-2/x07cce91f26fedd3c:tissues/v/ciliated-epithelium 2023-02-27T23:01:04.184405959Z Ciliated epithelium Here we show how ciliated epithelium works. Moumita Sen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Ciliated epithelium Here we show how ciliated epithelium works. https://cdn.kastatic.org/ka-youtube-converted/HV4c4pVXihc.mp4/HV4c4pVXihc.mp4 247 Animal Tissues https://www.khanacademy.org/science/bmc-grade-9-science/x345505a97fc4a662:introduction-to-biotechnology/x345505a97fc4a662:types-of-tissue/v/glandular-epithelium 2023-03-02T23:01:10.378516427Z Glandular epithelium Let's understand what glandular epithelium is and how it forms. Moumita Sen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Glandular epithelium Let's understand what glandular epithelium is and how it forms. https://cdn.kastatic.org/ka-youtube-converted/rscxaGBZ3uA.mp4/rscxaGBZ3uA.mp4 344 Animal Tissues https://www.khanacademy.org/science/bridge-course-class-11th-biology/xfa1bbeaa3bc88e64:cells-and-tissues/xfa1bbeaa3bc88e64:tissues/e/epithelial-tissue 2025-02-03T04:27:09.422733204Z Epithelial tissue Let's differentiate between different types of epithelial tissues. Moumita Sen exercise https://www.khanacademy.org/science/revision-term-1-tg-biology-class-9/x55ae3f7a2ac497cf:week-2/x55ae3f7a2ac497cf:animal-tissues/v/muscular-tissue 2025-09-05T04:00:40.052481652Z Muscular tissue In this video, we will the structure and characteristics of muscular tissue. We will dwell deep about the types of muscles in the human body—striated (skeletal), smooth (involuntary), and cardiac muscles. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Muscular tissue In this video, we will the structure and characteristics of muscular tissue. We will dwell deep about the types of muscles in the human body—striated (skeletal), smooth (involuntary), and cardiac muscles. https://cdn.kastatic.org/ka-youtube-converted/LFj9e5H62Mk.mp4/LFj9e5H62Mk.mp4 648 Animal Tissues https://www.khanacademy.org/science/revision-term-1-tg-biology-class-9/x55ae3f7a2ac497cf:week-2/x55ae3f7a2ac497cf:animal-tissues/e/grade-9-muscular-tissue 2026-04-28T14:20:41.63019599Z Muscular Tissue This exercise focuses on understanding the properties of muscular tissue and the different types of muscular tissue. Aishwarya Ramakrishnan exercise https://www.khanacademy.org/science/tg-grade-10-life-science-bridge-course/x567934b6011e38cb:animal-tissues/x567934b6011e38cb:muscular-and-neural-tissues/v/node-of-ranvier 2026-05-16T16:10:39.73955917Z Neural Tissue In this video, we will learn about the Node of Ranvier, the myelin sheath, and how saltatory conduction enables signals to jump from node to node for maximum speed. Learn how ions and charge changes at each node ""recharge"" the impulse, making myelinated neurons lightning-fast compared to non-myelinated ones. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Neural Tissue In this video, we will learn about the Node of Ranvier, the myelin sheath, and how saltatory conduction enables signals to jump from node to node for maximum speed. Learn how ions and charge changes at each node ""recharge"" the impulse, making myelinated neurons lightning-fast compared to non-myelinated ones. https://cdn.kastatic.org/ka-youtube-converted/m7TCTFnGijI.mp4/m7TCTFnGijI.mp4 345 Animal Tissues https://www.khanacademy.org/science/tg-grade-10-life-science-bridge-course/x567934b6011e38cb:animal-tissues/x567934b6011e38cb:muscular-and-neural-tissues/e/grade-9-nodes-of-ranvier 2026-05-16T16:10:39.73955917Z Neural Tissue This exercise focuses on understanding nodes of ranvier and their role in the nervous system. Aishwarya Ramakrishnan exercise https://www.khanacademy.org/science/bridge-course-class-11th-biology/xfa1bbeaa3bc88e64:cells-and-tissues/xfa1bbeaa3bc88e64:tissues/e/muscular-tissue-and-neural-tissue 2026-04-21T09:50:34.424034119Z Muscular tissue and neural tissue This exercise covers the different types of muscular and neural tissues. Moumita Sen exercise https://www.khanacademy.org/science/tg-grade-10-life-science-bridge-course/x567934b6011e38cb:animal-tissues/x567934b6011e38cb:connective-tissue/v/bone-and-cartilage 2025-10-01T17:00:46.216593062Z Bone and Cartilage What makes our body strong yet flexible? In this video, we will explore the structure, function, and location of bone and cartilage. We will learn what bone tissue is made of- the types of cells, matrix, and minerals and how it supports movement and protection. We will understand the role of cartilage in providing flexibility and cushioning joints. Finally, we will discuss how bone and cartilage are different from each other to see their key differences. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Bone and Cartilage What makes our body strong yet flexible? In this video, we will explore the structure, function, and location of bone and cartilage. We will learn what bone tissue is made of- the types of cells, matrix, and minerals and how it supports movement and protection. We will understand the role of cartilage in providing flexibility and cushioning joints. Finally, we will discuss how bone and cartilage are different from each other to see their key differences. https://cdn.kastatic.org/ka-youtube-converted/FKgxB3wY9_s.mp4/FKgxB3wY9_s.mp4 629 Animal Tissues https://www.khanacademy.org/science/revision-term-1-tg-biology-class-9/x55ae3f7a2ac497cf:week-2/x55ae3f7a2ac497cf:animal-tissues/e/bone-and-cartilage 2026-05-16T16:10:39.73955917Z Bone and Cartilage This exercise will give a comprehensive understanding of the concepts of bone and cartilage Aishwarya Ramakrishnan exercise https://www.khanacademy.org/science/up-science-grade-6-revision-course-full-term/x017c12e57b64cfa8:week-2/x017c12e57b64cfa8:untitled-229/v/joints 2025-02-24T07:39:06.722383375Z Joints Learn about movable and immovable joints, and dive into the functions of hinge joints, ball and socket joints, and gliding joints. Discover how these joints work together to help us move, bend, and stay stable. By the end of this video, you'll know: - The difference between movable and immovable joints. - How hinge joints, like in your elbows, help you bend. - Why ball and socket joints, like your shoulders, allow full range of motion. - How gliding joints in your vertebral column provide smooth movement while bending. Great for students, teachers, or anyone curious about how our bodies move! Don't forget to like, subscribe, and share for more fun biology lessons. Timestamps: 0:00 Intro 0:39 Immovable and Movable Joints 1:17 Types of movable joints 1:26 Hinge Joint 2:20 Ball and Socket Joint 4:01 Gliding Joint 5:13 Recap Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Joel Prakash Stephen Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Joints Learn about movable and immovable joints, and dive into the functions of hinge joints, ball and socket joints, and gliding joints. Discover how these joints work together to help us move, bend, and stay stable. By the end of this video, you'll know: - The difference between movable and immovable joints. - How hinge joints, like in your elbows, help you bend. - Why ball and socket joints, like your shoulders, allow full range of motion. - How gliding joints in your vertebral column provide smooth movement while bending. Great for students, teachers, or anyone curious about how our bodies move! Don't forget to like, subscribe, and share for more fun biology lessons. Timestamps: 0:00 Intro 0:39 Immovable and Movable Joints 1:17 Types of movable joints 1:26 Hinge Joint 2:20 Ball and Socket Joint 4:01 Gliding Joint 5:13 Recap Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Joel Prakash Stephen https://cdn.kastatic.org/ka-youtube-converted/7dZB56GpJFM.mp4/7dZB56GpJFM.mp4 341 Animal Tissues