Most of the nerve fibers enter the thalamus and form a junction (a synapse) in the back of the thalamus. From there the visual impulses enter nerve pathways called the optic radiations which lead to the visual (sight) cortex of the occipital (back) lobes of the brain.
Answer:
I believe it;s the difference in pressure
Explanation:
This is caused by the diaphragm contracting and therefore expanding the thoracic cavity. This increase in volume causes a decrease in pressure.
Answer:
The answer to the statement: At rest, most of the body´s blood supply resides in the pulmonary loop, would be, B: False.
Explanation:
The circulatory system never stops working. Pumping of blood, transportation of oxygen, nutrients and water to and from tissues is a process that does not end, even during sleep. The only moment when this process does not happen, is in death. However, a good question is, where does the blood go, or stay, when the body is not active, like for example, during sleep. And the answer is that most of it will rest on the systemic veins and venules and will slowly circulate back to the heart, but at a much lower rate than when the body activates itself. However, what is not true is that blood will reside mostly in the pulmonary loop, because this loop does not have the capacity to store that much blood.
Answer:
Explanation:
The epiglottis is the flap in the throat which allows the entry of the food inside the windpipe and the lungs. This flap is composed of elastic cartilage that actually covers the mucous membrane. It is attached to the entrance of the larynx. It is situated and projected upwards typically can be seen behind the tongue as well as the hyoid bone that typically point dorsally. It's function is to seal off the windpipe during the process of eating of food, so as to prevent the inhalation of food.
