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Review of the anatomy of skin
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The integumentary system is made up of skin, hair, nails, and glands.It is the most visible organ system. An average adult covers well over 20 square foot of surface area of the body. The skin weighs about 10 pounds.
There is skin the skin grows hair.The nails protect the tip of your fingers. The glands are to produce create hormones .
The integumentary system has skin hair nails and glands in it.The skin is for protection, regulation and sensation.Hair is to protection, regulation of body temperature, and facilitation of evaporation of perspiration.the function of glands is to produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs. These hormones regulate the body's growth,
To begin we will look at the integumentary system and its entire multitude of functions. The main components of the integumentary system are the skin, hair, nails, glands and nerves. For the purpose of this paper we will focus mainly on the levels of the skin and their functions. While the integumentary
Hair is considered one of the components of the integumentary system, along with the skin, nails, glands and nerves. Mammalian hair has many functions including protection from environmental factors and the ability to disperse sweat gland products such as pheromones. Almost every part of the human body is covered by hair except for the palms, hands and bottoms of the feet. On average, every person has about five million hairs; each of these hairs is born from a follicle or tiny tube-like structure that grows into the dermis layer of the skin. Oftentimes this follicle even reaches the subcutaneous layer, which is made of fat and connective tissue. (UXL Complete Health Research, 2001)
The system of the body that consists of bones, connective tissues, and cartilage is known as the skeletal system. Some major functions of this system are as follows:
The hormones produced from the endocrine system come from a wide range of different places. Among those responsible for hormone production are the glands and a few organs as well. The glands that are involved are the pituitary, thyroid, thymus, parathyroid, and adrenal. The organs, which also play a vital part, are the pancreas, gonads, kidneys, heart, and parts of the digestive tract. All these different glands or organs work together in the production of certain hormones. Those produced in one location will almost always have an effect on many other areas of the body, not just the surrounding tissues.
The thyroid gland plays a major role in the endocrine, thyroxine, triiodothyronine and metabolism system. The gland can be found in the front of the neck and above where the collar bones meet. The thyroid gland controls the body by releasing T4 and T3 hormones. Controlling metabolism plays an important role when regulating mood, weight,
The skin is the largest organ in the body, covering the bones and internal organs, protecting them from injuries, it serves as a barrier to germs, and bacteria and helps to prevent fluid loss. The skin helps to control the body’s temperature and also aids in removing certain body wastes, therefore making it a vital organ just as any other organ such as the heart or brain.
Body organs are not all internal as is the brain or your lungs. There is an extremely important one that we wear on the outside and is the largest organ, the skin. So important that we would literally disintegrate without it. The skin acts as a waterproof, insulating barrier, guarding our bodies from nature's toughest exposures. It protects our bodies with its many antibacterial substances to keep us immune from infections, it is also a gigantic sensor full with nerves, cell layers, and glands performing together to keep the brain in touch with the exterior world. But yet, at the same instance allows our body to move freely, proving itself as an extraordinarily versatile organ in its own right.
The second layer of the skin is called the dermis and is also known as the middle layer. The dermis is what holds the body together. The dermis has layers to it as well as the epidermis. There are two layers to the dermis, the papillary layer and the reticular layer. The cells of the dermis are fibroblast, macrophages, mast cells, and scattered white blood cells (wbc’s). the dermis is richly supplied with nerve fibers and BV;s. dermal BV’s is also a part of the integumentary system, dermal BV,s have converging and diverging vessels that ar...
The integumentary system is composed of the skin and the structures related to the skin, which include the hair, the finger nails, the sensory receptors and the glands (Shier, Butler, & Lewis, 2009). This system has an important function since it provides protection to the body, helps to maintain body temperature, and contains sensory receptors (p.117). The skin has essential function such as regulating homeostasis and body temperature, also delaying the loss of water from deeper tissues, storing sensory receptor, synthesizing biomechanical, and discharging waste from the body (p.117). The skin has two layers: the epidermis (outer layer) and the dermis (inner layer) (p.117). There is also a subcutaneous layer or hypodermis (p.117). According to Shier, Butler, and Lewis 2009 “as its name indicates, this layer is beneath the skin and not a true layer of the skin” (p.117). This layer has the blood vessels that supply the skin (p.117).
The thyroid gland is part of the endocrine system, and it is controlled by the pituitary which is known as the “master gland” of the endocrine system. The pituitary controls the thyroid by producing Thyroid Stimulating Hormone (TSH) which stimulates the production of thyroid hormones. . The thyroid gland secretes two main hormones: Thyroxine (T4) and Tri-Iodothyronine (T3). These hormones increase metabolic rate, heat production, oxygen consumption, appetite, growth hormone secretion, alertness and quicker reflexes. The thyroid gland is located in the anterior portion of the neck, beneath the Adam’s apple. It is divided in two lobes on either side of the windpipe: right lobe and left lobe. These lobes create what looks like a butterfly shape. The gland is essential to the contribution of maintaining the homeostasis of the body. It plays a role in monitoring the body’s expenditure of energy and running the body’s metabolism.
The skin is made up of three layers; epidermis, dermis, and subcutaneous layer. The epidermis layer contains stem cells. Stem cells regenerate new skin if the
The Integumentary system is defined by Adam.com, Inc. as an extensive system compromising of skin, hair, nails along with sweat and sebaceous glands. It also includes specialized nerve receptors which alert us to changes around us such as touch, cold, heat, pain, and pressure. These organs help in the way that they protect internal structures, protects against entry of diseases, temperature regulation and excretion through perspiration (2001). The integumentary system then becomes more specific within the different classes of vertebrates. This is proven when the integumentary system of a rat and a cane toad are compared. A rat is a mammal and therefore has many features common to all mammalian. Cane toads, however, are amphibians and so there are many differences to a rat. A rat’s body has a thick covering of hair which is unique to mammals. This provides insulation, vital for maintaining a constant internal body temperature. A cane toad, being an amphibian, has no hair on its body. There are some similarities in the skin though. Both their skins are made up of two layers, the epidermis and the dermis, though this is a far as parallels go. Augusta State University says that the epidermis of a cane toad is lined with a layer of dead cells (2006). This aids the animal by decreasing the amount of water lost through the skin. The dermis in most amphibians is very rich in capillaries because they breathe through their skin. The blood vessels must be near the skin for effective diffusion between the oxygen in the air to the blood. For the rat, the epidermis is the upper layer and protects the animal from t...
At the hypothalamus’s signal, one of two types of sweat glands, the eccrine glands, get to work. These sweat glands produce odorless perspiration, a mixture of water, salt and small amounts of other electrolytes, directly onto the skin’s surface. This second type of sweat gland is found predominantly in hair-covered areas, like the scalp, armpits and groin. These
...culatory system. Pituitary gland is a growth hormone that helps in mertabolism and develops reproductive organs. The thyroid controls metabolsim on the rate that the body breaks down food. Adrenal gland secretes many hormones including adrenaline which prepares the body to react in a stressful situation. The pancreas produces digestive enzymes and insulin. Ovaries produce ova and estrogen. Testes produce sperm cells and testosterone. To stay healthy you should get a regular medical check-up, eat a well-balanced diet, sleep at least 8 hours, and decrease stress in your life. Some problems are growth disorders, diabetes, and obesity. Puberty begins at different times for girls then boys. Girls start around ages 9-13 and boys are ages 10-15.
The Skeletal System, also known as the Skeleton make up a framework that support the body and protect the organs. The Skeleton consists of the bones and joints of the body. In the human body there is 300 bones at birth, these then fuse together to make 206 bones in a fully grown adult. The Skeleton is made up of two divisions: The axial and appendicular Skeleton.