Which lymph nodes would likely become inflamed with an ear infection?
A) cervical lymph nodes
B) thoracic lymph nodes
C) intestinal lymph nodes
D) none of the lymph nodes, but the spleen
E) axillary lymph nodes
A) cervical lymph nodes
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Kristen went to the dentist complaining of jaw tenderness and popping noises when she opens and closes her mouth. He notices abnormal wearing on the articulating surfaces of her teeth. Which of the following conditions does she most likely suffer from?
A) deviated nasal septum B) cleft palate C) temporomandibular joint syndrome D) dislocated jaw E) sinusitis
Which of the following statements regarding neurotransmitters is TRUE?
A. Acetylcholine is broken down by enzymes present on postsynaptic cell membranes. B. Acetylcholine that is released at synapses binds to adrenergic receptors in the postsynaptic cell membrane. C. Catecholamines are the most abundant neurotransmitters in the central nervous system. D. Opiate drugs, such as morphine, are antagonists of a class of neurotransmitters called endorphins. E. Gamma-aminobutyric acid (GABA) is a major excitatory transmitter in the central nervous system.
Which path of arteries would a blood cell follow on its way from the thigh to the foot?
A. Deep femoral a., medial planar a., posterior tibial a., plantar arterial arch B. Femoral a., popliteal a., anterior tibial a., dorsalis pedis a. C. Internal iliac a., deep femoral a., poplitial a., posterior fibular a. D. Lateral sacral a., femoral a., hamstring a., tibial a., dorsalis pedis a. E. Femoral a., saphenous a., azygous a., anterior tibial a.
Cellular material located outside the nucleus yet inside the plasma membrane is the ________
A) nucleolus B) cytoplasm C) interstitial fluid D) extracellular fluid