Nerves are ___ of the nervous system. 

Nerve fibers from all regions of the retina converge on the _________ and exit by way of the optic nerve.

_______________ is not found in the temporal bone. 

 Osteocytes are mature bone cells that occupy the ________in compact bone.     

The glenoid cavity of the _______________ articulates with the head of the _____________.

_______ neurons are specialized to detect stimuli, whereas _______ neurons send signals to the effectors of the nervous system.

A single row of tall narrow epithelial cells is called__________

The triads of a muscle fiber consist of ________________________________: 

What is the structure called at the end of the red arrow?

These are all organelles that contain membranes EXCEPT: