Sensory system

Light as a Pesticide What is a pesticide? Pesticides are substances which are used for attracting and then destroying or vindicating any kind of pests. It is a biological agent which is used to destroy pests. Pesticides are usually used for keeping pests away from plants. Pesticides are used fight insect-borne diseases and they also help to increase food production. Although pests have numerous benefits they also have few drawbacks such as possible toxicity to humans and other species. What is…

response in the body in which the immune system’s T-cells pass from the bloodstream into the nervous system to attack the myelin sheath around nerve cells. Myelin sheath are essential to the body for the nervous system to function appropriately. They are a fatty white substance that encompass a nerve cell to form an electrically insulated layer. The nervous system controls the processing of sensory information for all five senses, reflex reactions, voluntary movements, and body function…

Behaviourists often view observable behaviour as a crucial subject matter in its own right and steer clear of portraying behaviour as a sign of some other psychological phenomenon as some other psychological systems have done, for example; interpreting behaviour as an indication of repressed psychological content…

Kelsey M. Lee Castleton State College Rabies Definition Rabies is a complex virus that is found in mammals and has proven to be highly fatal in humans. Deriving from the rabies virus (RV) this virus attacks its host’s central nervous system and is most commonly transmitted through the exchange of saliva through a bite (Duncan & Boulton, 2012). It has been documented however that the virus can infect an individual through contact of the virus and an open wound and some cases have…

diagnosis is a liquid that is colorless in which bathes your brain and spinal cord which is being a shock absorber. Also, the EP diagnosis where it measures the electrical activity of the brain in response to stimulation from specific sensory nerve pathways. The immune system, responsible for most of the MS symptoms The cause of MS is damage to the myelin in the CNS and also damage to the nerve fibers. This interferes with signals between the brain and the spinal cord. Everything that’s…

I. INTRODUCTION Summary. T cells are one of the several types of lymphocytes that performs several functions in immunity. An example function is immune surveillance, a process in which foreign and diseased host cells are recognized and destroyed by natural killer cells. T cells function in immune surveillance by generating a T-cell response (TCR) which allow them to function in fighting against infection (Swann, J. B. et al, 2007). Recent findings indicate TCR and local non-related factors of…

the digestive tract and the respiratory tract. The smooth muscle in the lining of the bladder contracts to force the urine out of the bladder. Other examples of contraction in muscle tissues are peristaltic movement to move faeces down the digestive system and the contraction of smooth muscle found in the trachea and bronchi which decreases the size of the air…

The nervous system is broken down into two major systems: Central Nervous System and Peripheral Nervous System. We’ll discuss the Central Nervous System first. The Central Nervous System consists of the brain and the spinal cord. The Cerebral Cortex, which is involved in a variety of higher cognitive, emotional, sensory, and motor functions is more developed in humans than any other animal. It is what we see when we picture a human brain, the gray matter with a multitude of folds covering the…

cochlea contains the spiral organ of Corti, which is the receptor organ for hearing. It consists of tiny hair cells that translate the fluid vibration of sounds from its surrounding ducts into electrical impulses that are carried to the brain by sensory nerves. As the stapes rocks, back and forth against the oval window, it transmits pressure waves of sound through the fluid of the cochlea, sending the organ of Corti in the cochlear duct into motion. The fibers near the cochlear apex resonate to…

ability to see. The third cranial nerve is the oculomotor nerve which are sensory and motor nerves. The oculomotor nerve is involved in the internal and external control of the eye muscles. The fourth cranial nerve is the trochlear nerves which are mixed sensory and motor nerves that lie with the superior…