Canal that connects the third and fourth ventricles is cerebral aqueduct (of Sylvius) canal.
<h3>What are the central canal?</h3>
The central canal, additionally known as the spinal foramen or ependymal canal, extends from the conus medullaris withinside the lumbar backbone to the caudal perspective of the fourth ventricle and is coated through a single layer of columnar ependymal cells . It represents the remnant of the lumen of the primitive neural tube.
The 3 ventricle is a slim, funnel-formed shape located among your proper and left thalamus, simply above your mind stem. The fourth ventricle is a diamond-formed shape that runs along your mind stem.
Read more about the thalamus:
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Answer:
The answer to this question is given below in this explanation section.
Explanation:
"advantages of interconnecting air sacs for birds"
The air sacs permit a unidirectional flow of air through the lungs.Unidirectional flow means that air moving through birds lungs is largely fresh air and has a higher oxygen content.In contrast air flow is bidirectional in mammals moving back and forth into and out of the lungs.As a result air coming into a mammals lung is mixed with old air has less oxygen. so in bird lungs,more oxygen is available to diffuse into the blood(avian respiratory system).
- The air sacs are thin membrane structures connected to the primary or secondary bronchi via ostia and they comprise most of the volume of the respiratory system.
- Air sacs are poorly vascularized by the systemic circulation and do not directly participate in significant gas exchange but act as a bellows to ventilate the lungs.In most species,there are nine air sacs which can be considered in cranial and caudal functional groups.
- The cranial group consists of the paired cervical air sacs,the unpaired clavicular air sacs and the paired cranial thoracic air sacs.
A- organelles can have more than one role
The answer is heart attack, it is a naturally occurring cause of death
