A sickle-shaped vertical partition that divides the left and right cerebellar hemispheres is the
A. diaphragma sellae.
B. falx cerebelli.
C. tentorium cerebelli.
D. superior sagittal sinus.
E. falx cerebri.
B
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____ leave the blood after circulating for only a day or two and become the large-tissue phagocytes known as macrophages
a. Neutrophils b. Eosinophils c. Basophils d. Lymphocytes e. Monocytes
The connective tissue which forms the articular surfaces of long bones is ____.
a) elastic cartilage b) synovial membrane c) hyaline cartilage d) fibrocartilage
Sildenafil (Viagra) prolongs erection by ________
A) stimulating production of cGMP B) activating nitric oxide (NO) production C) inactivating guanylate cyclase D) inhibiting nitric oxide (NO) production E) inhibiting degradation of cGMP
Which of the following exclusively describes stratified epithelia?
A) They always have a free surface exposed to some inner chamber or passageway. B) They consist of a single cell layer. C) They are avascular. D) They cover surfaces subjected to mechanical and chemical stress. E) None of the answers are correct.