This figure illustrates the microscopic anatomy of spongy bone. Which number indicates a central canal?
A. 1
B. 2
C. 4
D. 5
E. None of the choices is correct.
Answer: E
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CO2 is a small, non-polar molecule. It will cross the cell membrane by
A. diffusion through a channel. B. active transport. C. diffusion using a pump. D. simple diffusion.
From superficial to deep, the meninges occur in which order?
A. Dura mater, pia mater, arachnoid B. Dura mater, arachnoid, pia mater C. Pia mater, dura mater, arachnoid D. Pia mater, arachnoid, dura mater E. Arachnoid, pia mater, dura mater
Fibroblasts and protein fibers are associated with both ________ and ________.
A. spongy bone; compact (dense) bone B. elastic cartilage; hyaline cartilage C. plasma; formed elements D. adipose tissue; reticular tissue E. dense regular; dense irregular connective tissues
What type of acid-base imbalance is present who has a PaCO2 of 48?
a. Acidosis b. Alkalosis c. Carbonation d. No imbalance present