Nervous system

What role does the autonomic nervous system play in controlling the movement of food through the digestive tract? What other physical or physiological factors can impact the movement of food though the digestive tract? • The autonomic nervous system is in control of the processes that are not voluntary controlled. It also controls the movement of food that is passed through the digestive…

Summary: Dopamine is a neurotransmitter that activates different dopamine receptors throughout the central nervous system. As mostly invertebrates have been studied in the past, the researchers wanted to focus on vertebrates in this study in order to determine the evolutionary patterns of these receptors. Five dopamine receptor genes were studied in five different mammals, and it was discovered that genes that are expressed more broadly have slower evolutionary rates than genes that are…

Our bodies are made up of many different components, but our nervous system has cells that serve as protective barriers for our bodies. Glial cells do not directly participate in our synaptic interaction and electrical signs. Their function is mainly to support function in order to define contacts and maintain signaling abilities in neurons. There are too many “glia” to count in our nervous system. These cell are much smaller than a neuron, and do not have axons or dendrites. The term “glia”…

Circulation: is the removal of waste products in the body. The benefits are that Helps remove waste products such as lactic acid in the muscles which would cause fatigue and soreness if not dealt with massage aids the removal. Strengthens the immune system when you so that you’re less likely to get sick. Tissue Permeability: is the absorption of substances within the soft tissues such as carbs or protein. Massage helps open up pores in tissue membranes which aid fluids and nutrients to be…

critical this system is to the body of a human, it is critical that research goes into compounds and chemicals that can potentially pose a risk to this system. Since mercury is a toxic element to human beings (FDA, 2015), it is important to question the introduction of dental amalgam from 150 years ago and ask if this is something that can continue to be used. Dental amalgam has been shown to cause damage to the central nervous system, which as shown above, the central nervous system is crucial…

Background MS (MS) is an auto immune disease which affects neurons of the central nervous system. A neuron consists of three main parts: an axon, dendrite, and a cell body. The axon is usually myelinated with a substance known as the myelin sheath, created by oligodendrocytes. This consists of twenty percent protein and eighty percent lipid. Each oligodendrocyte creates enough myelin to wrap around several axons. The periodic gaps between the neurons are known as nodes of Ranvier, where the…

As we know endocrine and nervous system work together. The way they work together is through communications. This systems consists on glands which secrets special hormones and these hormone goes around in the body as messenger. The organs who carry these type of hormones in the body are blood stream, organs and body tissues. The way they are connected is via brain which connect with two communication systems and the hypothalamus is tiny collection of Nellie which controls behaviour placed at the…

responsible for all the functions of both the human mind and body. All vertebrates, and the majority of invertebrates, have a brain. However, some ‘primitive’ animals such as jellyfishes and starfishes have a decentralized nervous system without a brain, while sponges lack any nervous system at all. Michio Kaku, a world renowned physicist and scientific communicator, comments that “The human brain has 100 billion neurons, each neuron connected to 10 thousand other neurons. Sitting on your…

What is the central nervous system? It’s a system which consists of the nerves in the brain and spinal cord. It gathers information about and reacts to internal and external stimulus. Don’t Shoot the Messenger Much of the CNS is made up of neurons. Each neuron has a cell body, which includes a soma with a nucleus, a nucleolus, a cytoplasm called the perikaryon, and wide branching extensions called dendrites. Dendrites are like antennae which receive signals from other neurons or body cells.…

Although not as immediately critical as the availability of oxygen and glucose, it is important for the nervous system of ectothermic humans to maintain normothermia for effective cellular functioning (Morrison, 2011). The principle source of heat originates from the body. Temperature control mechanisms in humans consist of both core and peripheral processes. Responses elicited occur in a feed-forward manner. Changes in thermoreceptors in primary sensory nerve endings distributed to the skin are…