Answer:
D. Anterograde flow
Explanation:
Axonal transport is of 2 types:
- Anterograde: Transport material from the soma towards the axon.
- Retrograde: Transport materia from axon towards soma.
Pathology :
- Virus enters tissue from saliva of biting animal.
- Virus replicates in muscle near bite.
- Virus moves to peripheral nervous system to CNS.
- Virus ascends the spinal cord.
- Virus reaches brain and causes fatal encephalitis.
- Virus enters salivary glands and other glands and other organs of victim.
Hence,Rabies bypasses many immune system defenses by traveling in peripheral neurons to reach the CNS. While anterograde flow is NOT used by the rabies virus to reach the CNS
I think the answer is organ systems. I hope this helps. :)
Some of these receptors bind to antigens in the blood. The
antigen are then endocytosed and identified. Some of the receptors such as the MHC II are
used in antigen-presentation. They display the antigen for identification and
activation of other lymphocytes.
Answer:
A hydration reaction is a chemical reaction where a hydrogen and hydroxyl ion is attached to a carbon in a carbon double bond.
