Which of the following structures do not contribute to the coarse grainy appearance of the perikaryon of a neuron?
A) mitochondria
B) smooth endoplasmic reticulum
C) free and fixed ribosomes
D) rough endoplasmic reticulum
E) All of the answers are correct.
B) smooth endoplasmic reticulum
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A seventy-five -year-old man goes to his doctor to complain of shortness of breath and a chronic cough. He is relieved to discover that he does not have cancer, but is diagnosed with emphysema. What anatomical changes occur in the lungs of a person with this disease?
What will be an ideal response?
Carl is suffering from hypothyroidism. How could his physician determine if his symptoms result from problems at the level of the hypothalamus and pituitary or at the level of the gland itself?
What will be an ideal response?
Intrapleural pressure normally does not equilibrate with the intra-alveolar pressure
Indicate whether the statement is true or false
The statement "Its ganglia are usually near or within the end organ" is
A) true only for the parasympathetic nervous system. B) true only for the sympathetic nervous system. C) true for both the parasympathetic and sympathetic nervous systems. D) not true for either the parasympathetic or sympathetic nervous systems. E) true only for the somatic nervous system.