Which of the following endocrine glands is composed of 2 different regions, one consisting of glandular epithelial tissue, and the other consisting of nervous tissue?

A) The pineal gland
B) The thymus gland
C) The parathyroid gland
D) The pituitary gland
E) The thyroid gland

Which of the following membranes acts as a rigid roof over the cilia of the hair cells of the spiral organ, causing the cilia to bend against it when sound waves are present?

A) Basilar membrane
B) Tympanic membrane
C) Cochlear membrane
D) Vestibular membrane
E) Tectorial membrane

Which portion of the ear contains the sensory receptors for hearing and balance?

A) External ear
B) Middle ear
C) Inner ear
D) Auditory tube
E) Tympanic membrane