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

In a relaxed muscle fiber, the active sites of actin are blocked by _____________. 

A deficiency of Acetylcholine (Ach) receptors leads to muscle paralysis in myasthenia gravis.    True or False?                                              

A traveling wave of excitation is what we know as: 

____is a type of endocytosis that is commonly called “cell eating”

Rigor mortis happens because Ca2+ is being released from the deteriorating sarcoplasmic reticulum, enabling the muscles to contract, however, ________ _   is not being made anymore after death, and therefore relaxation cannot take place. 

The cerebellum is ____________ to the cerebrum.

The right and left cerebral hemispheres are separated from each other by:

This figure shows the muscles of the anterior neck and abdomen.  What is the name of the muscle labeled “T3”?

Which muscle tissue does not exhibit striation?