Subcutaneous tissue
 | This article needs additional citations for verification. (December 2009) |
| Subcutaneous tissue | |
|---|---|
integumentary | |
| Identifiers | |
| Latin | tela subcutanea[1] |
| MeSH | D040521 |
| TA98 | A16.0.03.001 |
| TA2 | 7083 |
| TH | H3.12.00.2.00001 |
| FMA | (00400–00474) 9630, (00400–00474) |
| Anatomical terminology] | |
The subcutaneous tissue (from
adipose cells, and macrophages. The subcutaneous tissue is derived from the mesoderm, but unlike the dermis, it is not derived from the mesoderm's dermatome region. It consists primarily of loose connective tissue
, and contains larger blood vessels and nerves than those found in the dermis. It is a major site of fat storage in the body.
In
arthropods, a hypodermis can refer to an epidermal layer of cells that secretes the chitinous cuticle. The term also refers to a layer of cells lying immediately below the epidermis
of plants.
Structure
- Fibrous bands anchoring the skin to the deep fascia[4]
- Collagen and elastin fibers attaching it to the dermis[5]
- Fat is absent from the eyelids, clitoris, penis, much of pinna, and scrotum[1]
- Blood vessels on route to the dermis[6]
- Lymphatic vessels on route from the dermis[7]
- The glandular part of some apocrine sweat glands)[9]
- Cutaneous nerves[7] and free endings
- Hair follicle roots
- Pacinian corpuscles
- Mast cells[11]
- Bursae, in the space overlying joints in order to facilitate smooth passage of overlying skin
- Fine, flat sheets of muscle, in certain locations, including the scalp, face, hand, nipple, and scrotum, called the panniculus carnosus
In some animals, such as whales and hibernating mammals, the hypodermis forms an important insulating layer and/or food store.
In some plants, the hypodermis is a layer of cells immediately below the epidermis of leaves. It is often mechanically strengthened, for example, in pine leaves, forming an extra protective layer or a water storage tissue.
Subcutaneous fat
subcutaneous fat
on the obese person.adiposity.[14]
Clinical significance
Injection
Injection into the subcutaneous tissue is a
recreational drugs
.
Disease
See also
- Dermis
- Epidermis
References
- ^ a b c TA A16.0.03.001
- ^ "hypodermis lumenlearning".
- ISBN 978-0801672255.
- ISBN 0729537528.
- ^ a b c "The hypodermis". An Organ Revealed. L'Oréal. Retrieved 4 June 2013.
- ^ Tamarkin, Dawn A. "Unit 4: Skin & Bone Structure". Springfield Technical Community College. Retrieved 8 June 2013.
- ^ a b O'Rahilly, Ronan; Müller, Fabiola; Carpenter, Stanley; Swenson, Rand; Dartmouth Medical School. "Chapter 4: The skin, hair and nails". Basic Human Anatomy: A Regional Study of Human Structure. Retrieved 9 June 2013.
- ISBN 078177165X.
- ISBN 9783540536666.
- ^ ISBN 978-0071259712.
- ISBN 978-0071669047.
- ^ "Subcutaneous Tissue". Medical Subject Headings (MeSH). National Library of Medicine. Retrieved 5 June 2013.
- ^ "Abdominal fat and what to do about it". Harvard Health Publications. Harvard Medical School. 2006. Retrieved 5 June 2013.
- PMID 8046177.
