The concentric layers that form an osteon are ________. The small spaces that contain osteocytes are ________.
A. canaliculi; lacunae
B. lamellae; central canals
C. lacunae; lamellae
D. lamellae; lacunae
Answer: D
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Which of the following is responsible for secondary sex characteristics in females?
A) estrogens B) progesterone C) follicle-stimulating hormone (FSH) D) human chorionic gonadotropin (hCG) E) testosterone
The diamond-shaped ________ muscle originates on the middle of the neck and back and inserts on the clavicles and scapular spines, covering the upper back and extending to the base of the skul
Fill in the blank(s) with the appropriate word(s).
Preganglionic fibers of the parasympathetic division of the autonomic nervous system leave the CNS at the level of the brainstem and sacral portions of the spinal cord
Indicate whether the statement is true or false.
Why is the spleen an organ particularly susceptible to rupture in an accident, and why is this such a serious potential problem?
What will be an ideal response?