How is the skin involved in the regulation of temperature, Biology

Assignment Help:

Q. How is the skin involved in the regulation of body temperature?

Skin is one of various organ systems participating in maintaining a core temperature, meaning the temperature near center of someone's body. Temperature sensors in skin and internal organs monitor core temperature and transmit signals to control center situated in hypothalamus, a region of the brain. When core temperature falls below its set point, hypothalamus: 1. Sends more nerve impulses to blood vessels in skin that cause vessels to narrow that restricts blood flow to the skin, decreasing heat loss. 2. Stimulates skeletal muscles, causing brief bursts of muscular contraction, called shivering, that generates heat. When core temperature rises above its set point, hypothalamus: 1. sends fewer nerve impulses to blood vessels in the skin, causing them to dilate, that increases blood flow to skin and promotes heat loss. 2. Activates sweat glands and when sweat evaporates off skin surface it carries a large amount of body heat with it.


Related Discussions:- How is the skin involved in the regulation of temperature

Eggs of insect, EGG S OF INSECT This eggs is centrolecithal and it is ...

EGG S OF INSECT This eggs is centrolecithal and it is elliptical. It diameter is 2-3 mm. It has two eggs membrane i.e. vitelline membrane and chitinous capsule. The chit

Explain diagnosis of root perforation, Explain Diagnosis of Root Perforatio...

Explain Diagnosis of Root Perforation 1- Exploration: Continuous bleeding if the defect touched during cleaning and shaping lead to difficult vision. Difficult to d

Explain trypsin, Trypsin Trypsin is secreted in the inactive  form  try...

Trypsin Trypsin is secreted in the inactive  form  trypsinor  -  which is converted into the active form  trypsin by  the enzyme enterokinase secrated by  the duodenal mucosa.

Define vitamins required for underweight - nutritional care, Define Vitamin...

Define Vitamins required for underweight - nutritional care? If the diet provides good amounts of fresh fruits and vegetables, vitamin or mineral supplements are usually not re

Reproductive isolation, REPRODUCTIV E ISOLATION - According to the bio...

REPRODUCTIV E ISOLATION - According to the biological species concept, members of one species are reproductively isolated from members of all other species. Accordingly, re

Risk during crown removal-endodontics principles, Risk during crown removal...

Risk during crown removal -Tooth inadvertently extracted using a crown\bridge remover . -Endodontic therapy was performed , and the tooth was replanted , a procedure known

Causes of degradation of ecosystem due to agriculture, Causes of Degradatio...

Causes of Degradation of Ecosystem Due to Agriculture Degradation of the ecosystem due to agriculture can be on the following accounts: a) Removal of trees (deforestation

Essay, “Define nosocomial infections. Discuss the factors that might influe...

“Define nosocomial infections. Discuss the factors that might influence whether a patient may acquire nosocomial infection. How might these risks be reduced?”

Define mineralizations and formation of new bone, Define Mineralizations an...

Define Mineralizations and formation of new bone? Vitamin D plays a role in the synthesis of a prominent non collage nous protein, osteocalcin, a vitamin K- dependent protein f

Marchantia , why vegetative reproduction use in marchantia

why vegetative reproduction use in marchantia

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd