The clear fluid(Jin)is mainly distributed to ( ) A: muscle B: orifices C: marrow D: skin

A urologist performs a cystoscopy to examination the bladder and opening of the ureters into the bladder. After distention of the bladder with air, the physician slowly passes the cystoscope up the urethra into the bladder. In which direction should she turn the head of the cystoscope to see the orifices and examination for blockage? A: anterior and inferior B: anterior and superior C: posterior and inferior D: posterior and superior

It is necessary to make sure that there are no loose parts left in the crankcase before using the turning gear because ______. A: some parts of the running gear have been dismantled B: during dismantling work, lubrication lines and orifices are sealed<br/>off C: loose parts jammed in the crankcase are likely to cause damage D: pipes are relieved of pressure before the repair work

A urologist performs a cystoscopy to examination the bladder and opening of the ureters into the bladder. After distention of the bladder with air, the physician slowly passes the cystoscope up the urethra into the bladder. In which direction should she turn the head of the cystoscope to see the orifices and examination for blockage? A: anterior and inferior B: anterior and superior C: posterior and inferior D: posterior and superior E: posterior and interior

Which is incorrect about the description of trigone of bladder?() A: It lies at the inner surface of fundus of bladder. B: It is a triangular area formed by two ureteric orifices and an interureteric fold. C: Its submucous layer and muscular layer are connected compactly with each other. D: It maintains smooth all the time no matter extending or contraction. E: It is the predilection site of tumor, concretion and inflammation.