What structure cushions the kidney from traumatic blows or jostling?
A) Renal fascia
B) Adipose capsule
C) Renal capsule
D) Hilum
Answer: B
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The fight-or-flight reaction prepares an animal to respond to a threatening situation, by either fighting or running away. One aspect of this response is changes in blood flow such that the skeletal muscles and heart receive higher blood flow (vessels dilate) while digestive organs receive less (vessels constrict). Which signal molecule(s) is/are involved in this response, and how do they produce
these changes in blood vessels? Explain how this example illustrates one or more of the following concepts: multiple ligands for one receptor, multiple receptors for one ligand, agonists and antagonists. What will be an ideal response?
Which statement is incorrect?
a. Rising to moderate levels of estrogen inhibit the hypothalamus and anterior pituitary in negative-feedback fashion. b. Under the influence of estrogen from developing follicles, both FSH and LH secretion both continue to decline throughout the follicular phase. c. Both estrogen and progesterone are required to completely inhibit tonic LH secretion. d. A high level of estrogen stimulates LH secretion and initiates the LH surge. e. Progesterone powerfully inhibits both FSH and LH secretion.
Where on the leg is the superficial and easily palpable portion of the soleus located?
a. Anteriorly b. Posteriorly c. Dorsally d. Laterally
What anatomical feature enables lymph nodes to filter lymphatic fluid?
A. Medullary cords in the medulla B. Subcapsular sinus C. An elongated bean shape D. Afferent lymphatic vessels E. The presence of lymphatic nodules with B cells