In this closeup image of a lung, what structures are indicated by number 4?
A. Respiratory bronchioles
B. Alveoli
C. Terminal bronchioles
D. Bronchioles
E. Alveolar ducts
Answer: B
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While on a peaceful morning walk, you pass a construction site where a person suddenly starts using a jackhammer. Unconsciously, you turn your head from the noise. This action is due to the response of which structure(s)?
A. The middle cerebellar peduncles B. The thalamus C. The inferior colliculi D. The superior colliculi E. The substantia nigra
Which of the following is NOT part of the cardiovascular system?
a. blood vessels b. heart c. blood d. lymph
Moving air through the eustachian tube equalizes air pressure on the ____________________
Fill in the blank(s) with correct word
Exercise causes a(n) ________ in growth hormone (GH) levels; a rise in amino acid levels or decrease in glucose levels causes a(n) ________ in GH levels.
A. increase; increase B. increase; decrease C. decrease; increase D. decrease; decrease