What separates the oral cavity from the nasal cavity?
A) labial frenulum and lingual frenulum B) periodontal ligament
C) hard palate and soft palate D) extrinsic and intrinsic muscles
Answer: C
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In which order would blood flow through these structures as it travels from the hypothalamus to the pituitary gland? a: Primary plexusb: Secondary plexusc: Hypophyseal portal veins
A. b - a - c B. c - a - b C. c - b - a D. a - c - b E. a - b - c
The ________ are bones contained within the tympanic cavity of the temporal bone.
Fill in the blank(s) with the appropriate word(s).
Dual innervation refers to situations in which
A) vital organs receive instructions from both sympathetic and parasympathetic fibers. B) sympathetic and parasympathetic fibers have excitatory and inhibitory actions. C) the atria and ventricles of the heart receive innervation from the same nerve. D) sympathetic and parasympathetic fibers cause the same effect. E) All of the answers are correct.
The mechanism(s) underlying the development of cardiac hypertrophy is(are) complex, though relaxation abnormalities resulting in a chronic elevation of cytosolic Ca++ level appear to promote the development of hypertrophy through:
A. stimulation of the sarcolemmal Ca++ pump B. Ca++ binding to troponin I C. activation of calcineurin D. inhibition of Ca++-calmodulin-dependent protein kinase E. opening Ca++-activated K+ channels