What is the connective tissue "bag" that holds or surrounds the mammalian brain called?
A) Meninges
B) Arachnoid mater
C) Mucosa
D) Cranial cavity
Answer: A
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A male patient complains of physical weakness and fatigue. A blood test shows his hematocrit to be 30%. Which of the following diagnoses is the least likely to explain his symptoms?
A. Dietary iron deficiency B. Dietary vitamin B12 deficiency C. Internal bleeding D. Kidney disease E. Lung disease
Which stage indicates that cancer has spread to nearby tissues?
A. Stage 4 B. Stage 7 C. Stage 2 D. Stage 5
When blood flow to an area of the lungs is reduced but the area receives normal air flow all of the following occur except
a. the concentration of CO2 in this area will be decreased. b. the change in CO2 concentration will cause the smooth muscles of the local airways to relax. c. the change in CO2 concentration will lead to increased resistance of local airways. d. the change in O2 concentration will lead to dilation of local blood vessels. e. the change in O2 concentration will lead to decreased vascular resistance.
Which of the following stimulates spermatogenesis in the seminiferous tubules?
A. FSH B. Inhibin C. GnRH D. LH