Accepted
at 1:40 p.m. Jul, 15, 2025
by
kevinpanini
Author:
jbhullar
Type of change:
Updated content
Rationale for change
Erection as a cue is too much imo, switched with standing up.
Also imo the table in extra might be a bit much/low-relevance for this note specifically.
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1) Epidermis 2) Arrector pili muscle 3) Hair follicle 4) Dermis
A layer of warm air accumulated around the hair and insulate the body
Photo credit: AnthonyCaccese, CC BY-SA 4.0, via Wikimedia Commons

1) Epidermis 2) Arrector pili muscle 3) Hair follicle 4) Dermis
A layer of warm air accumulated around the hair and insulate the body
Photo credit: AnthonyCaccese, CC BY-SA 4.0, via Wikimedia Commons
| Hot | -Vasodilation: arterioles widen (dilate), allowing more blood to enter skin capillaries and causing heat to escape. -Sweating: when water changes states, sudorific glands release sweat that absorbs heat. -Pilorelaxation: the hairs flatten as a result. -Stretching Out: by opening up, the body was a larger surface area. |
| Cold | -Vasoconstriction: arterioles shrink to keep the core warm by reducing blood flow to the skin. -Shivering: skeletal muscles contract and relax quickly. heat generated by respiration. -Piloerection: skin hairs stand up. -Curling Up: making yourself smaller so smaller surface area. |
Lecture Notes
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Pixorize
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Sketchy
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