The integumentary system is a very vital piece of an intricate puzzle commonly known as the human body. It may seem like a very small piece, but it does so much. It helps protect tissues and organs, regulate body temperature, synthesize and store energy, detect certain senses, and excrete wastes. Within itself, this system has a multitude of components including multiple layers of skin, hair follicles, nails, and various glands. Individually, and as a whole unit, these components serve a highly important purpose. One crucial function of the integumentary system is protection. It is made up of multiple layers of skin, including the epidermis and dermis, which cover the entire body. This helps to shield the underlying tissues and organs. It protects these precious parts from chemicals, infections, impact damage, and sun exposure. Along with this protection, it helps to prevent major loss of important internal bodily fluids. Temperature maintenance is another function provided by the integumentary system. It helps the body maintain homeostasis by adjusting accordingly to keep it at a steady, normal body temperature. The environment is the biggest enemy when it comes to body temperature regulation. When it is cold outside our body has to try to adjust by heating up, we usually aid this process by putting on multiple layers of clothing so heat can be entrapped and absorbed by the skin. When it is hot outside our body temperature rises, causing it to produce sweat. This sweat moves from the sweat gland duct in the dermis up to the epidermis, in hopes to help lower internal temperatures. In addition, the integumentary system also helps synthesize and store nutrients/energy/food. When exposed to sunlight, or artificial sunlight, the epidermis is triggered to synthesize vitamin D. This is crucial because it in turn helps a hormone which results in calcium buildup within the body. Also, the dermis helps hold in vast amounts of lipids, which includes various fats, oils, and waxes. Sensory reception is also provided by the integumentary system and is a very essential part of our everyday lives. It helps us detect pressure, pain, temperature, and foreign stimuli. All of these things are then passed along to the nervous system. Touch and pressure receptors are located in the dermis and hypodermis. The hair shafts and follicles are a main part of this reception process. They help by detecting and warning us of foreign objects coming in contact with the body. They also become stiff and stand up straight when we are exposed to cold temperatures triggering temperature maintenance. They even keep certain foreign particles from entering our bodies via eyes and nostrils. The final function of the integumentary system is that of excretion and secretion. Various glands throughout the dermis and epidermis help release liquids such as sweat and water, salts, and organic wastes. Sweat must be released to maintain proper body temperature and also helps dilute chemicals that could be harmful when in contact with the skin. This function also aids in the secretion of breast milk, as the mammary glands are similar to those of apocrine sweat glands. The layers of skin in the integumentary system also help to quickly respond to injuries and attempt to ensure they do not become serious injuries. For example, calluses form on hands and feet when more external pressure is placed on them in attempt to protect the underlying tissues with this thicker layer of skin. But when a more serious injury occurs such as a scrape, cut, or incision occurs, the skin…
glands in the skin release waste in the sweat)
Integumentary System Organs
The integumentary system forms a protective barrier between the external environment and the inner tissues. Other than that, the integumentary system organs work together to provide insulation and help in excreting waste from the body. To know more about the same, read on...
Skin which is the largest organ of the body is also the principal organ of the integumentary system. Other than the skin, nails, hair, scales…
DHO 6:3 pg 113-117
Wkbk pg 40-41
Integumentary system includes:
Skin (dermis, epidermis, subcutaneous
fascia or hypodermis)
Glands (sweat and oil glands)
Epidermis – outermost layer; made of five
small layers; no blood vessels or nerve cells
Dermis – middle layer, framework of elastic
connective tissue and contains blood vessels,
lymph vessels, nerves, involuntary muscle,
sweat and oil glands…
a role in which of the following?
48. What is the normal concentration of blood calcium?
49. Which of the following hormones is responsible for increasing blood calcium levels?
Begin short answer/essay
50. What are the 6 functions of membrane proteins?
51. What is the primary difference between active and passive transport?
52. What is the difference between simple diffusion and osmosis?
53. What does it mean for passive transport…
The Integumentary System
The Three Main Layers of Skin:
1. Epidermis: The first layer of skin is called the Epidermis. It is composed of stratified squamous epithelium that is keratinized. It contains the keratinocytes and melanocytes, it is avascular, and is the tissue layer above skin. It is the BARRIER Layer. The Epidermis is made up of five different layers:
Stratum Corneum: known as the “horny” layer, dead, stratified squamous, and it looks rough. This layer can become thick (callus) from…
The Integumentary System
By: Sasha Caldwell
The Integumentary System has multiple important roles in maintaining
life. It includes protection, temperature regulation, sensory reception, biochemical synthesis, and absorption. All body systems work in an interconnected manner to maintain the internal conditions essential to the function of the human body. The Integumentary System contains the largest organ in the human body, the skin. The skin cushions and protects the delicate organs beneath…
Effects of System Dysfunction
The integumentary system is very important in an individuals overall health. Lets say the the system began to function incorrectly or did not function at all. Here are some possible outcomes from this scenario.
Sweat is a part of homeostasis and if the skin didn't exist, then the body can not excrete sweat. Therefore, you could not use this as a way to cool off.
Without the skin, hair, and nails, pathogens could enter your body with ease. This would certainly…
Chapter 5: Integumentary System -Burns and the Rule of Nines
A burn is a tissue damage caused by excessive heat, electricity, radioactivity, or corrosive chemicals that denature the proteins in the skin cells. Burns are graded according to their severity. A first-degree burn involves only the epidermis (sunburn). A second-degree burn destroys the epidermis and part of the dermis (blister). A third-degree burn is a full-thickness burn that destroys the epidermis, dermis, and subcutaneous…
The integumentary system consists of the skin, hair, nails, and glands. The word INTEGUMENT comes from a Latin word that means “covering”. The skin is the largest organ of the body that is waterproof and airtight so that water and other things keep out. With the skin being waterproof it helps the body to stay dry and prevents the body from losing its fluids and drying out. The skin protects the body from many infectious organisms and harmful effects of ultraviolet radiation. The skin also helps control…
physiology refer to the structure and function of cells respectively. Whether you are looking at the human body, a plant, or a part of one of those organisms, how it is built is the anatomy and how it works is the physiology. The purpose of this essay is to analyze the normal anatomy and physiology of human skin then look at how the skin is altered in the disease state, Acne Vulgaris. We will explore the symptoms of, and treatment for, acne. Lastly, we will explore studies performed on nonwesternized…
Functions of the
• Structures that are part of
• Overview of Functions
Vitamin D production
• Epidermis: Superficial layer of epithelial tissue.
• Dermis: Deep layer of connective tissue.
– Structural strength
• Subcutaneous tissue
– Not part of skin
– Loose connective tissue that connects skin to underlying…