When blood glucose levels rise, the pancreatic islets are stimulated to release insulin, which acts on target cells to uptake glucose from the blood. Thus, the islets serve as the ________ in the feedback loop.
effectors
integrating center
sensors
All of the choices are correct.
all of the choices are correct
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The cerebral aqueduct connects the third ventricle with the fourth ventricle.
Answer the following statement true (T) or false (F)
Premature closure of the epiphyseal plates could be caused by
A) elevated levels of sex hormones. B) too little thyroxine. C) an excess of growth hormone. D) too much calcium in the diet. E) high levels of vitamin D3.
A patient with severe pain in the spine due to degenerative disc disease has chosen to have spinal fusion surgery to join the two vertebrae together, alleviating the pain. Once the bones have healed, the joint will resemble a
a) synchondrosis joint. b) amphiarthrosis joint. c) synarthrosis joint. d) diarthrosis joint.
Lesions of the limbic system might result in
A. loss of coordination. B. a voracious appetite. C. loss of sensation. D. decreased sexual activity. E. enhanced fear and anger responses.