Biology Exam 5 Chapters 21 and 22

jspradz's version from 2015-04-29 03:17

Section 1

Question Answer
Waves of contraction and relaxation by smooth musclePeristalsis
Food into a ballBolus
Create hydrochloric acidPanetal cells
pepsinogen (inactive), which is converted to pepsin with HClChief cells
GERDFrequent heartburn
Duodenum, Jejunum, and Ileum are:3 parts of the small intenstine
Pouch at the junction of the small and large intestinesCecum
_____ contribute to blocked blood vessels and higher blood pressureLow-density lipoproteins (LDL)
_____ help to reduce blocked blood vesselsHigh-density lipoproteins (HDL)

Section 2

Question Answer
_____ are specialized secretions required to keep the walls of the small alveoli from sticking shutSurfactants
_____ in the brain sense and respond to CO2 levels in the bloodBreathing control centers

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