In the video, a man is seen standing in front of a chalkboard. He is wearing a white shirt and a tie. The chalkboard behind him has the word \"SYSTEMS\" written at the top, and there are various words and phrases written underneath, including \"BONE CARTILAGE,\" \"ORGAN WALLS,\" and \"TISSUE CARTILAGE.\" The man is holding a piece of paper in his hand and appears to be speaking or explaining something. He is gesturing with his hands as he talks. The video seems to be taken in a classroom or educational setting, and the man appears to be a teacher or instructor.