Final answer:
The statement that 'CRTZ contains the same receptors as the emetic center' is false. The emetic center is part of the brain's area postrema, which can induce vomiting in response to toxins, and it has different receptor types compared to the CRTZ.
Step-by-step explanation:
The statement that 'CRTZ contains the same receptors as the emetic center' is false. The emetic center, also known as the area postrema, is a part of the brain located next to the fourth ventricle. It is involved in the induction of vomiting (emesis) and is not fully protected by the blood-brain barrier. This facilitates its ability to detect toxins in the bloodstream that can elicit the vomiting reflex. The area postrema has significant connections with the solitary nucleus, and the dorsal motor nucleus of the vagus nerve. These connections are part of the autonomic system and play a role in the symptoms of motion sickness, which can occur when there is conflicting information between the visual and vestibular systems. As the CRTZ (chemoreceptor trigger zone) and the emetic center are involved in the process of detecting emetic stimuli, they may work in tandem, but the two have different structures and receptor types.