What are the smallest living units of biologic organization?
a. atoms
b. cells
c. organelles
d. systems
b
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The fact that the structures of cells vary widely reflects the specializations needed for their different functions.
Indicate whether this statement is true or false.
During quiet breathing,
A) only the internal intercostal muscles contract. B) inspiration involves muscular contractions and expiration is passive. C) inspiration is passive and expiration involves muscular contractions. D) both inspiration and expiration are passive. E) both inspiration and expiration involve muscular contractions.
Which of the following is not one of the rotator cuff muscles?
A. Teres major B. Teres minor C. Supraspinatus D. Infraspinatus E. Subscapularis
In which area of the eye does the sharpest, most detailed, daytime vision occur?
A. Optic disc B. Ora serrata C. Macula lutea D. Fovea E. Periphery of the retina