Each of the following statements concerning the development of the skull is true except that
A) all the bones of the skull develop from one single ossification center.
B) at birth the cranial bones are connected by areas of fibrous connective tissue.
C) the growth of the cranium is usually coordinated with the growth of the brain.
D) the skulls of infants and adults differ in shape and structure of the skeletal elements.
E) the most significant growth of the skull occurs before the age of 5.
A
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Blood glucose levels are kept fairly steady in healthy people through the action of the hormones insulin and glucagon. Insulin decreases blood glucose by promoting glucose uptake by cells, whereas glucagon increases blood glucose by promoting release of glucose from cells. Describe these hormone actions as simple reflex pathways, identifying the stimulus, integrating center, efferent pathway, and response.
What will be an ideal response?
Football players often sustain lateral blows to the extended knee. Which of the ligaments is (are) damaged as a result?
A) oblique popliteal and extracapsular ligament B) suprapatellar C) arcuate popliteal and the posterior cruciate D) medial collateral, medial meniscus, and anterior cruciate
Due to its sterile nature, urine can be used to clean a wound
Indicate whether the statement is true or false.
The tendency for physiological systems to stabilize internal conditions with respect to the external environment is called
A) integration. B) internal regulation. C) responsiveness. D) homeostasis. E) external regulation.