The number of thoracic vertebrae is:
a. 5
b. 7
c. 10
d. 12
d. 12
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The receptor for steroid hormones lies
A. in the cell nucleus or cytoplasm. B. within the cell membrane. C. on the outside of the cell membrane. D. on the endoplasmic reticulum of the cell.
Why is blockage of a coronary artery such a serious threat to cardiac muscle?
A. Cardiocytes have weak sarcolemmas that easily rupture. B. Cardiocytes have abundant mitochondria and rely on a constant supply of oxygen. C. Cardiocytes rely on a constant supply of calcium. D. The myosin of cardiocytes is unique and requires abundant nutrients and oxygen. E. Cardiocytes are fast-twitch fibers.
A/an ________ is a deep state of unconsciousness
Fill in the blank(s) with correct word
In which structure do sound waves first pass?
a. cochlear duct b. scala media c. scala tympani d. scala vestibuli e. helicotrema