Valves in lymphatic vessels resemble those of veins and allow the movement of fluid in ________.
Fill in the blank(s) with the appropriate word(s).
only one direction
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Your friend Greg is hit in the jaw and when looking at him, his face looks misaligned. You immediately take him to the emergency room and are not surprised to learn that he has a broken
A) temporal bone. B) zygomatic bone. C) mandible. D) external auditory meatus. E) clavicle.
The lining of the urinary bladder is composed of which type of cell?
A. Simple squamous B. Transitional C. Simple cuboidal D. Simple columnar
What conditions favor the proliferation of intestinal microbiota in the large intestine?
A. The anaerobic environment of the large intestine B. The undigested sugars and amino acids that regularly enter the large intestine C. The use of antibiotics D. The presence of Vitamin K and Vitamin B12
A neuron that synapses in the adrenal medulla is a ________ neuron, and releases the neurotransmitter ________
A) preganglionic; acetylcholine (ACh) B) somatic; norepinephrine (NE) C) postganglionic; acetylcholine (ACh) D) preganglionic; norepinephrine (NE) E) postganglionic; norepinephrine (NE)