A goiter is a growth on the:
a. pancreas.
b. parathyroids.
c. pituitary.
d. thyroid.
d. thyroid.
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What is the most important factor determining airway resistance?
a. airway radius b. interactions between flowing gas molecules c. length of the airway d. thickness of the wall of the airway
Diseases may arise when proteins fail to fold correctly in their last stages of processing and/or are directed towards the lysosome rather than towards the cell membrane. Cystic fibrosis is an example of this type of disease. In cystic fibrosis, a functional ion channel is sent to the lysosome for destruction rather than being sent to the plasma membrane. Given this observation, the cellular component that is most likely the cause of the disease is the ________.
A)Peroxisomes B)Golgi apparatus C)Ribosomes D)Lysosomes
Cranial nerves VII and VIII pass together through which of the following openings?
A. External acoustic meatus B. Stylomastoid foramen C. Jugular foramen D. Internal acoustic meatus E. Carotid canal
What is the function of the iris?
A. Changes the shape of the lens B. Refracts light rays C. Regulates the size of the pupil D. Absorbs stray light rays