In a __________ feedback loop, the endocrine cell acts as the sensor and integrating center
Fill in the blank with the correct word.
Answer: Direct
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An adult has approximately ________ taste buds
A) 100 B) 10,000 C) 4,000,000 D) 500 E) 50,000
Which of the following is incorrect pertaining to the apex of the heart?
A) It is formed by the inferolateral part of the left ventricle. B) Typically it lies posterior to the left 5th intercostal space in adults. C) It underlies the site where the "heartbeat" may be auscultated on the thoracic wall. D) It is where the sounds of the mitral valve closure are maximal (apex beat). E) It is bisected by the coronary groove.
Intercalated discs serve to transfer all of the following from cell to cell except
A) ionic currents. B) action potentials. C) the force of contraction. D) Z-lines. E) small molecules.
If the pars intermedia of the pituitary is destroyed, the pituitary would no longer be able to secrete which of the following hormones?
A) TSH B) ACTH C) PRL D) ADH E) MSH