What structure on the cell surface is the arrow pointing at?

The tangle of capillaries the arrow is pointing at is called the…

This empty follicle is called a ….

How would you characterize the tissue the arrow is pointing at?

The structure the arrow is pointing at is called ________________ capsule.

The arrow is pointing at the lumen of what tubule?

This is an image of liver tissue. What so the white spaces represent?

Which organ of the digestive tract does this image represent?

What type of cells are found in the PNS and are responsible for insulating neighboring neurons so that signals aren’t sent from the cell body of one neuron to the cell body of another within the same nerve?  

Ultimately the production of all hormones is controlled by the hypothalamus.