1 / 4

Mammals in Arid Lands

Mammals in Arid Lands. Physiological adaptation for thermoregulation. Counter-current heat exchange Venous blood is cool (evaporation) Arterial blood is warm Carotid artery comes in contact with cool venous blood before going to brain Brain keeps cool.

hani
Télécharger la présentation

Mammals in Arid Lands

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mammals in Arid Lands

  2. Physiological adaptation for thermoregulation • Counter-current heat exchange • Venous blood is cool (evaporation) • Arterial blood is warm • Carotid artery comes in contact with cool venous blood before going to brain • Brain keeps cool

  3. Physiological adaptations for osmoregulation

  4. Physiological adaptations for osmoregulation • Ability to retain moisture from exhaled air • Air warmed in lungs • Evaporation cools nasal passages • Exhaled air cools and condenses • Reclaim 65-75% of moisture

More Related