Nervous tissue. Nervous tissue or nerve tissue is the main tissue component of the two parts of the nervous system; the brain and spinal cord of the central nervous system (CNS), and the branching peripheral nerves of the peripheral nervous system (PNS), which regulates and controls bodily functions and activity.
Transmission. Mosquitoes carry the parasite that causes heartworm disease from animal to animal. The life cycle of a heartworm begins when a mosquito bites an infected animal carrying heartworm microfilariae in its blood.If that mosquito bites another cat or dog, it transmits the larvae to that animal.The larvae mature into adult worms in the heart and lungs of the host animal.he life cycle of a heartworm begins when a mosquito bites an infected animal carrying heartworm microfilariae in its blood. If that mosquito bites another cat or dog, it transmits the larvae to that animal. The larvae mature into adult worms in the heart and lungs of the host animal.
Mosquitoes are famous carriers of the heartworm parasite, which is a small roundworm. Heartworm disease starts when a mosquito that carries the parasite bites a dog, cat or other animal. Because mosquitoes are blood-sucking insects, each bite spreads the disease from one animal to another.The heartworm can grow up to a foot-long and lives in the heart, lungs and major arteries of our pets.eartworm is caused by the heartworm larvae. This often fatal disease can affect family pets if they have been bitten by a mosquito carrying the larvae. The disease is preventable through a variety of drugs that have been approved by the Food and Drug Administration.