Hearing loss that is classified as conduction hearing loss can never be repaired.

What is tinnitus?

Human growth hormone is released from the ________________ after receiving a hormonal signal from the ___________________.

What causes cataracts? 

Which of the following nerves are NOT classified as spinal nerves?

All spinal nerves contain only sensory neurons.

Which of the following structures is responsible for allowing communication to occur between the right and left hemispheres?  

Lateralization refers to the fact that different hemispheres of the brain specialize to have different functions.

Beta cells are responsible for producing insulin.

What gland releases growth hormone?