Hair tourniquet: Difference between revisions
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{{Infobox medical condition | |||
| name = Hair tourniquet | |||
| image = [[File:Hairtournequet.JPG|left|thumb|A hair tourniquet on an infant's toe]] | |||
| caption = A hair tourniquet on an infant's toe | |||
| field = [[Pediatrics]] | |||
| synonyms = Hair-thread tourniquet syndrome | |||
| symptoms = Swelling, redness, pain, tissue damage | |||
| complications = [[Ischemia]], [[necrosis]], [[amputation]] | |||
| onset = Typically in infants | |||
| duration = Until the constricting hair is removed | |||
| causes = Hair or thread wrapped tightly around a body part | |||
| risks = Infants with long-haired caregivers | |||
| diagnosis = Physical examination | |||
| differential = [[Paronychia]], [[cellulitis]], [[congenital constriction band syndrome]] | |||
| prevention = Regular inspection of infant's digits | |||
| treatment = Removal of the constricting hair or thread | |||
| prognosis = Excellent if treated promptly | |||
| frequency = Rare | |||
}} | |||
[[File:Hair_Tourniquet_after.JPG|Hair Tourniquet after|thumb|left]] | |||
'''Hair root''' is the part of the [[hair]] that is enclosed within the [[hair follicle]], under the skin. The hair root ends in an enlargement, the [[hair bulb]], which is whiter in color as it lacks the pigment that gives the hair shaft its color. The hair bulb encloses the [[dermal papilla]], which supplies nutrients to the hair and contains the [[germinal matrix]], where new cells are produced for hair growth. | '''Hair root''' is the part of the [[hair]] that is enclosed within the [[hair follicle]], under the skin. The hair root ends in an enlargement, the [[hair bulb]], which is whiter in color as it lacks the pigment that gives the hair shaft its color. The hair bulb encloses the [[dermal papilla]], which supplies nutrients to the hair and contains the [[germinal matrix]], where new cells are produced for hair growth. | ||
== Structure == | == Structure == | ||
The hair root is made up of several layers, each with a specific function. The innermost layer is the [[medulla]], followed by the [[cortex]], which makes up the majority of the hair root, and the outermost layer is the [[cuticle]]. The cuticle is a hard, shingle-like layer of overlapping cells. Some hair, like that of many mammals, has a layer of air-filled cells within the medulla, which aids in heat retention. | The hair root is made up of several layers, each with a specific function. The innermost layer is the [[medulla]], followed by the [[cortex]], which makes up the majority of the hair root, and the outermost layer is the [[cuticle]]. The cuticle is a hard, shingle-like layer of overlapping cells. Some hair, like that of many mammals, has a layer of air-filled cells within the medulla, which aids in heat retention. | ||
== Function == | == Function == | ||
The primary function of the hair root is to anchor the hair into the skin. The hair root is connected to the [[arrector pili muscle]], which can cause the hair to stand up when it contracts. This is most noticeable in animals, where it can create an "end on end" effect that helps to trap a layer of air to keep the animal warm. | The primary function of the hair root is to anchor the hair into the skin. The hair root is connected to the [[arrector pili muscle]], which can cause the hair to stand up when it contracts. This is most noticeable in animals, where it can create an "end on end" effect that helps to trap a layer of air to keep the animal warm. | ||
The hair root also plays a role in hair growth. The cells in the germinal matrix divide and push upwards, hardening and taking on pigment as they go. This process is influenced by hormones, particularly [[androgens]], which can cause the hair root to shrink and the hair to thin in those genetically predisposed to [[androgenetic alopecia]]. | The hair root also plays a role in hair growth. The cells in the germinal matrix divide and push upwards, hardening and taking on pigment as they go. This process is influenced by hormones, particularly [[androgens]], which can cause the hair root to shrink and the hair to thin in those genetically predisposed to [[androgenetic alopecia]]. | ||
== See also == | == See also == | ||
* [[Hair follicle]] | * [[Hair follicle]] | ||
| Line 16: | Line 31: | ||
* [[Hair growth]] | * [[Hair growth]] | ||
* [[Androgenetic alopecia]] | * [[Androgenetic alopecia]] | ||
[[Category:Hair]] | [[Category:Hair]] | ||
[[Category:Human anatomy]] | [[Category:Human anatomy]] | ||
{{anatomy-stub}} | {{anatomy-stub}} | ||
Latest revision as of 04:07, 9 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's medical weight loss NYC, sleep center NYC
Philadelphia medical weight loss and Philadelphia sleep clinics
| Hair tourniquet | |
|---|---|
| Synonyms | Hair-thread tourniquet syndrome |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Swelling, redness, pain, tissue damage |
| Complications | Ischemia, necrosis, amputation |
| Onset | Typically in infants |
| Duration | Until the constricting hair is removed |
| Types | N/A |
| Causes | Hair or thread wrapped tightly around a body part |
| Risks | Infants with long-haired caregivers |
| Diagnosis | Physical examination |
| Differential diagnosis | Paronychia, cellulitis, congenital constriction band syndrome |
| Prevention | Regular inspection of infant's digits |
| Treatment | Removal of the constricting hair or thread |
| Medication | N/A |
| Prognosis | Excellent if treated promptly |
| Frequency | Rare |
| Deaths | N/A |
Hair root is the part of the hair that is enclosed within the hair follicle, under the skin. The hair root ends in an enlargement, the hair bulb, which is whiter in color as it lacks the pigment that gives the hair shaft its color. The hair bulb encloses the dermal papilla, which supplies nutrients to the hair and contains the germinal matrix, where new cells are produced for hair growth.
Structure[edit]
The hair root is made up of several layers, each with a specific function. The innermost layer is the medulla, followed by the cortex, which makes up the majority of the hair root, and the outermost layer is the cuticle. The cuticle is a hard, shingle-like layer of overlapping cells. Some hair, like that of many mammals, has a layer of air-filled cells within the medulla, which aids in heat retention.
Function[edit]
The primary function of the hair root is to anchor the hair into the skin. The hair root is connected to the arrector pili muscle, which can cause the hair to stand up when it contracts. This is most noticeable in animals, where it can create an "end on end" effect that helps to trap a layer of air to keep the animal warm. The hair root also plays a role in hair growth. The cells in the germinal matrix divide and push upwards, hardening and taking on pigment as they go. This process is influenced by hormones, particularly androgens, which can cause the hair root to shrink and the hair to thin in those genetically predisposed to androgenetic alopecia.
See also[edit]
