EEMB 136 Lecture Notes - Lecture 15: Antorbital Fenestra, Rib Cage, Squamosal Bone
15 Nov 2017
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Atlas joint: allow to move the head part only. Can eat and breathe on the same time. 2 holes adjacent to where the eyes are. Backbone keep the organs within the body cavity so they don"t get crushed by their own weight. Protect organs and is attached to the backbone. Strengthened to transfer weight between the spine and limbs. Modified into arms to transfer weight to the ground better. Allows head movement independent of the rest of the body ii. Localized gas exchange to the head so don"t need holes all over body (unlike plants) Allow the uptake of oxygen even with a closed mouth. In water, sound is easily transmitted because water is a dense medium. Make a tympanum, which vibrates with a weaker impulse of sound i) Connected to the sound nerve center, the otic capsule, by the stapes, a 3rd gill arch that becomes the connector.
