TOXICOLOGY: (Mechanisms OPPOSING DISTRIBUTION TO A TARGET)
- Specialized Barriers

1 Because brain capillaries LACK __ and have extremely tight
junctions, substances that are __ CANNOT ENTER THE BRAIN except by
__

2 The spermatogenic cells are surrounded by __ that are
tightly joined to form the __.

3 Transfer of HYDROPHILIC TOXICANTS across the placenta is RESTRICTED. However, NONE of these BARRIERS are EFFECTIVE AGAINST __

Question

(Mechanisms OPPOSING DISTRIBUTION TO A TARGET)
- Specialized Barriers

1 Because brain capillaries LACK __ and have extremely tight
junctions, substances that are __ CANNOT ENTER THE BRAIN except by
__

2 The spermatogenic cells are surrounded by __ that are
tightly joined to form the __.

3 Transfer of HYDROPHILIC TOXICANTS across the placenta is RESTRICTED. However, NONE of these BARRIERS are EFFECTIVE AGAINST __

LEIGHTON DWIGHT OBILLOS · Accepted Answer

.

1) 1 fenestrae 
2 hydrophilic, 
3 active transport

2) 1 Sertoli cells, 
2 blood–testis barrier

3 lipophilic substances.
Hydrophilic = Restricted
Lipophilic = Not Restricted

. 1) 1 fenestrae 2 hydrophilic, 3 active transport 2) 1 Sertoli cells, 2 blood–testis barrier 3 lipophilic substances. Hydrophilic = Restricted Lipophilic = Not Restricted