Multiple Choice QuestionsWhich of the following layer of heart wall consists of cardiac muscles ?
Endocardium
Myocardium
Epicardium
All of these
If heart beats 75 beats/min. then what is time for cardiac cycle ?
0.5 sec
0.8 sec
1 sec
1.5 sec
Blood pressure increases and heart rate decreases in response to :
exercise
haemorrhage
exposure to high altitude
increased intracranial pressure
'P' wave of ECG occurs before the:
onset of ventricular ejection
end of atrial contraction
begining of atrial contraction
none of the above
Which of the following is the character of the bile juice?
It has trypsin
It has no enzyme
It has enterogasterone
It has tripophnomide
Cells present in the inner lining of kidneys are :
podocytes
choanocytes
pinocytes
nephrocyte
A.
podocytes
Podocytes are the cells of Bowman's capsule in kidney. They are less flattened cells, which line the concavity of the Bowman's capsule. They possesses foot-like projections the pedicels.
Choanocytes or collar cells are cells that line the interior of asconoid, syconoid and leuconoid body type sponges that contain a central flagellum, or undulipodia, surrounded by a collar of microvilli which are connected by a thin membrane.
Nephrocytes are the specialized cells, present in arthropods. Their main function is the accumulation or formation of waste or excretory products.
Pinocytes are the flat cells found on the outermost layer of a sponge.
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