Blood flow is measured in blood volume per unit time. It is the movement of blood through an organ, tissue or vessel. It is initiated when ventricles in heart contract leading to its ejection at high pressure. Major arteries receive this blood and they further transport it at high pressure to smaller arteries, arterioles and capillaries. Hence arteries have thick walls to withstand this pressure. The pressure decreases when blood reaches to veins hence their walls are not that thick. Hence, blood flows from a region of high pressure to a region of low pressure.

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3 years ago

You observe a tissue under a microscope. There appears to be a lumen on one side of the tissue. Lining this lumen, the cells see

Lorico [155]

Answer:

The correct answer is A: Simple cuboidal epithelium.

Explanation:

Simple Cuboidal Epithelium: These epithelia are formed by a single layer of cuboidal cells, that are as tall as they are wide. They have a rounded, central nucleus. Occasionally these cells present cilia, flagella or microvillus in their apical surface, lining the lumen. Microvillus are fingerlike projections. This epithelium can be found for example in the proximal convolutes renal tubule.

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3 years ago

Glycolysis is the first stage of cellular respiration and is an anaerobic process. During glycolysis, glucose is converted to tw

poizon [28]

Answer:

Explanation:

Two molecules of ATP from the cell are invested at the beginning of the process of glycolysis.

4 0

3 years ago