Changes

The thermoregulatory mechanism consists of:

The thermoregulatory mechanism consists of:

*'''Sensory Component''': neurones that possess nerve endings with thermoreceptors continuously monitor body temperature and transmit it to the integrating centre. These neurons may be within the skin or internal organs.

##'''Sensory Component''': neurones that possess nerve endings with thermoreceptors continuously monitor body temperature and transmit it to the integrating centre. These neurons may be within the skin or internal organs.

*'''Integrating Centre:''' the [[Endocrine System - Hypothalamus - Anatomy & Physiology|Hypothalamus]] is the control centre in the brain which compares the temperature information with an ''Internal Reference'' or ''Set point''.

##'''Integrating Centre:''' the [[Endocrine System - Hypothalamus - Anatomy & Physiology|Hypothalamus]] is the control centre in the brain which compares the temperature information with an ''Internal Reference'' or ''Set point''.

*'''Motor Component''': neurons which send signals to alter the internal temperature - altering heat production or heat loss.  

##'''Motor Component''': neurons which send signals to alter the internal temperature - altering heat production or heat loss.  

**These command signals may travel via the somatic motor system and affect heat production in skeletal muscle.

*These command signals may travel via the somatic motor system and affect heat production in skeletal muscle.

**These command signals may travel via the Sympathetic Nerve Fibres and change

*These command signals may travel via the Sympathetic Nerve Fibres and change

***Blood Flow to the Skin

**Blood Flow to the Skin

***Sweat Gland Activity

**Sweat Gland Activity

***Activity of the smooth muscles which regulate fur/plumage thickness

**Activity of the smooth muscles which regulate fur/plumage thickness