Olfactory receptor neuron

Cockroaches are the oldest and most primitive winged insects. Most species are found in tropic area, fewer species are found in temperate area. Majority of the species are no economic importance, inhabiting the floor of tropical, caves, rain forests, deserts, etc (Lee & Ng 2009). 2.1.2 Physical characteristics Most cockroaches are light brown to black color to suit their cryptic, habitat and nocturnal behavior. Cockroach body is typically oval and flattened dorsal-ventrally. This type of shape allows

Smell and Taste Research Kaitlyn Martin Mrs. Amber Jackson Anatomy & Physiology Honors November 7, 2014   Smell and Taste Research Many people are fortunate enough to have five senses. These senses are taste, touch, sight, smell, and hearing. Some people don 't have sight and are blind, and others don 't have hearing and they are deaf. Not many people go through their lives without a sense of feeling, taste, or smell; not having those senses are much less common than being deaf or blind. The sense

Aromatherapy candles: What do they do? Do they work? There are various scented candles on the market which claim to be aromatherapy candles. Unfortunately, the quality of these varies greatly. Some are made from artificial scents and toxin-producing wax, which can actually have an adverse effect on our body and mind. We will first explain how to make sure you purchase a true aromatherapy candle. To answer the question – ‘do aromatherapy candles work?’ and ‘what do they do?’, we will explore the evidence

What is visual acuity? Visual acuity is commonly referred to as the clarity of vision and is dependent on both optical and neural factors, such as the sharpness of the retinal focus in the eye, the health of the retina, and the sensitivity of the brain. One aspect of visual acuity is the ability of recognizing and discriminating the colours of the visible spectrum of light. There are two types of cells involved in vision: rod cells and cone cells. Rod cells are highly sensitive cells that allow for

commissioner of the FDA, launched an attack on tobacco companies, claiming they deliberately increased nicotine levels in cigarettes. Nicotine has been shown in various experiments to induce tolerance in smokers by its effects on the CNS and dopaminergic receptors. David Kessler believes nicotine to be addictive and desires the FDA to regulate nicotine as any drug such as cocaine. If the agency can prove that nicotine

The Mysterious Illness Schizophrenia Imagine being functional your entire childhood and teenage life. You attend class, study, work, and juggle a myriad of activities. You may have friends with whom you socialize in your free time. You are becoming more independent and learning to care for yourself. Suppose the newscaster on television starts talking directly to you or that someone calling with the wrong number is really a government spy or that you were going out to lunch with the president

with schizophrenia. The limbic system is responsible for the functions of emotional responses, memory, motivation, and the olfactory system. In people with schizophrenia, both the prefrontal cortex and the limbic system have abnormal brain chemistry. Neurons in the brain are associated with each other electrically and chemically. Electrical synapses migrate down a neuron as an action potential to the adjacent cell membrane. The action potential signal then reaches the axon terminal. The information

Schizophrenia is a psychotic disorder that disrupts the essential ability to perceive what is real and not real (Varcarolis, 2010). This type of disease may be considered as a multitude of conditions but with mutual features and interrelating etiologies. It has been found through research that a person with schizophrenia has a different brain chemistry, neurotransmitter activity, and structure than a healthy human being. There is no single proven cause of schizophrenia, however there are several

It contains both cranial and spinal nerves which connect the skeletal muscles and skin to the Central Nervous System. There are twelve pairs of cranial nerves. Olfactory nerves are the first pair of cranial nerves, and they contain sensory neuron axons. Sense of smell is linked with this pair of nerves. The second pair of cranial nerves is the optic nerves, which are responsible for vision. Oculomotor nerves are the third pair of cranial nerves, and

Introduction An emerging area of research focus on the investigation of viral infections involved in neurodegenerative diseases. Data suggests that viral infections promote hallmark events seen in neuronal degeneration such as in Alzheimer's Disease (AD). In AD, protein aggregates of β-amyloid peptides forming plaques and neurofibrillary tangles composed of hyperphosphorylated tau has been shown to impair brain functions. Areas affected are the hippocampus and cerebral cortex responsible for cognitive