1
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Receptor sites for neurotransmitters are present on
A
pre-synaptic membrane
B
tips of axons
C
post-synaptic membrane
D
membranees of synaptic vesicles.
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Myelin sheath is produced by
A
astrocytes and Schwann cell
B
oligodendrocytes and osteoclasts
C
osteoclasts and astrocytes
D
Schwann cells and oligodendrocytes.
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Out of 'X' pairs of ribs in humans only 'Y' pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation.
A
X=12, Y=5

  
True ribs are attached dorsally
to vertebral column and sternum
on the two ends
B
X=24, Y=2

The true ribs are dorsally attached
to vertebral column but are free on
ventral side
C
X=24, Y=12


True ribs are dorsally attached
to vertebral column but are free on
ventral side
D
X=12, Y=7


True ribs are attached dorsally to
vertebral column and ventrally to
the sternum
4
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following statements is correct?
A
The descending limb of loop of Henle is impermeable to water
B
The ascending limb of loop of Henle is permeable to water.
C
The descending limb of loop of Henle is permeable to electrolytes.
D
The asecending limb of loop of Henle is impermeable to water.