1. Trachea – The trachea is a lengthy tube that connects the larynx (voice box) to the bronchi. Your bronchi are tubes that carry air to your lungs. The trachea is an important component of your respiratory system. The trachea is made up of cartilage rings. It is bordered with mucus-producing cells.
2. Human hair – Each hair is attached to the skin via a hair follicle. The hair follicle’s base is formed by the hair bulb. Living cells divide and proliferate in the hair bulb to form the hair shaft. Hair bulb cells are nourished by blood arteries, which also supply hormones that affect hair development and structure at different stages of life.
3. Skin – With a total area of around 20 square feet, the skin is the body’s biggest organ. The skin protects us from microorganisms and the elements, assists in body temperature regulation, and allows us to feel touch, heat, and cold.
1. Trachea – The trachea is a lengthy tube that connects the larynx (voice box) to the bronchi. Your bronchi are tubes that carry air to your lungs. The trachea is an important component of your respiratory system. The trachea is made up of cartilage rings. It is bordered with mucus-producing cells.
2. Human hair – Each hair is attached to the skin via a hair follicle. The hair follicle’s base is formed by the hair bulb. Living cells divide and proliferate in the hair bulb to form the hair shaft. Hair bulb cells are nourished by blood arteries, which also supply hormones that affect hair development and structure at different stages of life.
3. Skin – With a total area of around 20 square feet, the skin is the body’s biggest organ. The skin protects us from microorganisms and the elements, assists in body temperature regulation, and allows us to feel touch, heat, and cold.
References:
Hoffman, M. (2010, May 10). Picture of the Hair. WebMD; WebMD. https://www.webmd.com/skin-problems-and-treatments/picture-of-the-hair#:~:text=A%20hair%20follicle%20anchors%20each,at%20different%20times%20of%20life.
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Hoffman, M. (2009, July 16). Picture of the Skin. WebMD; WebMD. https://www.webmd.com/skin-problems-and-treatments/picture-of-the-skin
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Trachea (Windpipe): Function and Anatomy. (2021). Cleveland Clinic. https://my.clevelandclinic.org/health/body/21828-trachea#:~:text=The%20trachea%20is%20the%20long,with%20cells%20that%20produce%20mucus.
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