Renin has its direct effect on a molecule known as
A. angiotensinogen.
B. vasopressin.
C. aldosterone.
D. angiotensin II.
Answer: A
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In a median section of a sheep brain, the thalamus lies ________ the midbrain.
A. posterior B. inferior C. lateral D. superior E. anterior
Implantation is completed by the ________ day of development.
A. 10th B. 21st C. 14th D. 7th
Which of the following muscle groups is involved in elevating the hyoid bone and depressing the mandible?
A. muscles of mastication B. suprahyoid muscles C. infrahyoid muscles D. intrinsic tongue muscles E. extrinsic tongue muscles
Each of the following is an ascending tract in the spinal cord except the
A) fasciculus gracilis. B) fasciculus cuneatus. C) posterior spinocerebellar. D) reticulospinal tract. E) anterior spinothalamic.