The origin of the sternocleidomastoid muscle is from the sternum and clavicle, while the insertion is on the _________.

An extensor of the elbow joint is:

Biceps brachii, flexes the elbow joint, while triceps brachii extends the elbow joint, these muscles are _________ to each other.

Bundles of axon in the central nervous system are called ________.

Identify the H zone   

Which of the following muscles is a muscle of the quadriceps femoris group?  

Most commonly sensory neurons are:

As you increase the frequency of stimulation of skeletal muscle the tension increases, causing wave summation and tetany. This is due to build up of__________ within the muscle cells.   

When ligand gated ion channels open in the postsynaptic neuron, and lead to an inhibitory postsynaptic potential (IPSP), this is a   

The  gastrocnemius and soleus insert by a common  Achilles tendon on which bone of the foot?