Raul's father tells him not to slouch, and to put his shoulders back. What specifically must Raul do to improve his posture?
A.
laterally rotate his humerus
B.
medially rotate his humerus
C.
depress his scapulae
D.
retract his scapulae
D
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In response to high blood pressure, stretch receptors called __________ in the walls of arteries carrying blood to the head will trigger a reflex that causes the heart to __________ its beats per minute.
A. baroreceptors; decrease B. proprioceptors; decrease C. baroreceptors; increase D. proprioceptors; increase E. chemoreceptors; increase
The lungs are located in the ________ cavity.
A) costal B) pericardial C) thoracic D) pulmonary E) pleural
____________________ serves as the final electron acceptor in the electron transport system
Fill in the blank(s) with correct word
What primarily determines airway resistance in the respiratory passageways?
A) degree of alveolar surface tension B) elasticity of the lung tissues C) diameter of the conducting zone passageways D) presence of surfactant