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Integumentary System (skin)

The Integumentary System includes the skin, hair and nails and is the human body's largest organ system.

2,086 Questions

What are the structure and function of the subcutaneous layer?

The human skin is made up of three basic layers ; the epidermis (outer layer), the dermis(middle layer) beneath the epidermis and the subcutaneous layer beneath the dermis. The subcutaneous layers are fat cells and connective tissue that carry the blood vessels and nerves. It is located below the epidermis and the dermis, in that order, and is the third and final layer and consists primarily of loose connective tissue and lobules of fat.

What organs do the integumentary work with?


The brain and heart, directly. Indirectly, the lungs, stomach, kidneys and many others. However, almost all organs in the human body work with the skin in some way (the skin is an organ in and of itself). A better question would be, what organ systems affect the skin?

How many touch receptors are in the average person?

The average human skin contains approximately 5 million touch receptors, including various types such as Meissner's corpuscles, Pacinian corpuscles, and Merkel cells. These receptors are distributed unevenly across the body, with areas like the fingertips and lips having a higher density. This intricate network enables us to perceive a wide range of tactile sensations.

What makes up skin?

Your skin is made up of two layers that cover a third fatty layer. The outer layer is called the epidermis, and the second layer is called the dermis, which contains nerve endings, sweat glands, oil glands and hair follicles.

The most important cell type of the skin, in fact the one that can be actually said to form up the skin in common speak, are keratinocytes.

It should be noted that skin can be divided into epidermis, dermis, and hypodermis.

  • Epidermis is made up of the aforementioned keratinocytes plus melanocytes, Langerhans cells, and the Merkels cell.
  • In the dermis fibroblasts, smooth muscle cells, endothelial cells and various epithelial cellscan be found.
  • Finally, in the hypodermis one can find adipose cells, distinct immune cells, nerve cells, and again fibroblasts, endothelial cells and various epithelial cells

What are the five senses of integumentary system?

the four skin senses are:

-PAIN

-COLD

-PRESSURE

-HEAT

that all..

from: JELLY

What skin type is the more superficial dermis layer?

The most superficial part of the dermis is the papillary layer , the dermis is made up of papillary layer & Reticular layer and the papillary layer is just made up of loose connective tissue which allows movement to the epidermis and also contains capillaries and regulates the body temperature .

What is the extra skin at the elbow called?

The skin on your elbow is usually only loose when you hold your arm straight. If you bend your elbow as far as you can, the skin will probably be tight. You have extra skin on the elbow so that you can bend your arm.

It could also be a form of bursitis or build up of fluids.

What are 5 important components of the dermis?

The dermis contains, among other things, hair follicles, sebaceous glands, sweat glands, free nerve endings (pain), pressure/touch receptors and a microvascular supply.

Compare the composition of the papillary and reticular regions of the dermis?

retcular layer is comparly thicker than papillary layer. It composed of irregular dense connective tissu(mainly Type I collagen) and therefore has more fibers and fewer cells than papillary layer.

Which layer of skin is the outer most layer and contains dead cells?

Your skin shreds everyday so you may have layers of dead skin forming on the surface of your skin. So the answer would be dead skin

What is the function of blood vessels and sweat glands in the skin?

Both the blood vessels and the sweat glands of the skin work to decrease body temperature when it is too high. The superficial blood vessels dilate to release more heat through the skin, and the sweat glands produce perspiration, which evaporates to reduce body temperature.

Roles of the skin?

Skin is the largest organ that a person has, it covers a 20.83 sq ft on a adult sized body. there are three main layers of tissue that make up skin; they're the epidermis, the dermis, and also the subcutaneous fascia, which is also known as the hypodermis. Skin, acts a regulator for your body temperature which contributes to your overall homeostasis. the reason why you sweat and get goose bumps is because it's your body's attempt to return to homeostasis. the body changes the size in your blood vessels in your skin. as your temperature rises your blood vessels in your skin get larger, this is called vasodilation. this is when you sweat because it is your body's attempt to push as much hot blood as possible to a cooler surrounding area. the reverse of that is called vasoconstrict, this is when your blood vessels become smaller in diameter. the body forces blood away from the skin and back to the core where it is warmest; causing goose bumps. the sweat and sebaceous glands, located in the dermis have a part in maintaining a steady body temperature. there are two main types of sweat glands. the apocrine and the eccrine; the eccrine glands are important to the regulation of body temperature. sweat glands can be activated by heat, pain, fever, or nervousness. The innermost layer of skin which is known as the subcutaneous fascia is responsible for housing lipocytes, lipocytes produce the fat needed to not only provide padding , but also acts a insulation system for temperature regulation.

Is the stratum basale the same as stratum germinativum?

The epidermal layer. (below that is the acellular dermal layer)

How does skin regenerate?

The humanskin is the largest organ of the body. It has the amazing ability to constantly regenerate itself. The skin consists of two main layers, the dermis--deep layer--and the epidermis-Thesurface layer. There are other smaller layers of skin located within these two sections. Specifically, the stratum basale and stratum spinosum layers of the epidermis are responsible for skin regeneration. Skin cells are being born all the time and are rising into the epidermal layers of the skin. Young skin regenerates its surface area every two to three weeks on the epidermal layer.

How does sebum protect the body?

Sebum produced by Sebaceous glands of the skin, contains and oil/wax matter. It comprises of unsaturated fatty acids which can be used as a protective to inhibit certain pathogenic bacteria and fungi.

What are the advantages and disadvantages of having hair on the skin?

Hair on the skin, body hair, or more properly androgenic hair, serves the function of extending the sense of touch. Follicle nerves beneath the hair shafts, under the skin, detect any movement or vibration of the hairs. This may be due to an object touching the skin or a disturbance in the nearby air.

Hair also provides a small amount of insulation, such as when 'goosebumps' raise the hairs along the arm.

A final purpose for body hair is that of sexual attraction. The hair follicles of the pit and groin regions are next to pheremone producing glands. As the androgenic hair is courser in those regions, the pheremones become trapped.

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apparently there are no evidences which might point out as to the importance of having or having no hair on the skin. skin hair does not serve any function in the body.

What is the most common disease of the integumentary system?

Bacterial infections are the most common. Bacteria cause lesions, ulcers, cellulitis, and boils. Pyoderma are pus-containing skin infections, such as impetigo, caused by Staphylococcus or group A Streptococcus bacteria.

What happens in the stratum germinativum?

stratum germinativum layer is the deepest layer of five epidermis layer which is the outer covering of skin in mammals. It is a continuous layer of cells which is often described as one cell thick but to the reality it is two to three cells thick in glabrous skin and hyper proliferative epidermis.