Nervous System

The Basal ganglia are the group of Nuclei in the brains of vertebrates. These are located at the base of your fore brain. Basal Ganglia are also connected strongly with thalamas, the cerebral cortex, and other such areas.

The three main functions of the lymphatic system are fluid balance, immune defense, and lipid absorption. It helps to maintain fluid balance in the body by draining excess fluid from tissues, supports the immune system by producing and transporting white blood cells, and absorbs fats and fat-soluble vitamins from the digestive system.

Exitatory neurotransmitters, such as acetylcholine and glutamate, bind as ligands to ligand-gated channel proteins. Once these neurotransmitters have binded to these transport proteins, the channel opens between the outside and inside of the cell. Once open, sodium (Na+) ions tend to rush into the cell from the outside along with the electrochemical gradient, because these ions want to go from high concentration and positive membrane charge to where there is a lower concentration of Na+ and a more negative membrane charge. This action depolarizes the membrane, meaning the difference in voltage between the inside and the outside of the cell membrane becomes less negative. Depolarization of the cell membrane increases the likelihood of firing an action potential down that neuron, opening calcium (Ca2+) channels in the synaptic terminals, causing an influx of calcium, which causes vesicles filled with neurotransmitters to fuse to the presynaptic membrane, releasing the neurotransmitters into the synapse, starting the whole process over again.

Electrical conductivity is important because we live in a world that is increasingly run by electronic devices. These devices depend on materials that are electrically conductive to send their signals and operate.

The bicarbonate buffer system is an important buffering system in the human body. It helps regulate the pH of the blood by maintaining a balance between carbonic acid and bicarbonate ions. This system plays a crucial role in preventing drastic changes in pH that could be harmful to the body's metabolic processes.

As you know that the brain is like the head of our body, the brain is connected to thousands of tiny vessels and nerves. The stomach also is connected to the tiny vessels and nerves through which, the brain sends messages to the digestive system in whole. As the messages reach the digestive system, the system starts the work.The food travels from the mouth to the buccal cavity to the oesophagus to the stomach to the small intestine and then the large intestine and in the end, to the rectum and anus. The food travels a whole of about 12 metres in our body to get digested in 2 days. But, the reaction of fat storage in the body starts after 3 hours of the food intake.

There are many different cells in the human body. The different cells in the body are generally grouped into tissues that have similar properties. The four main groups of tissues in the body are, muscular, nervous, connective, and epithelial.

There are 3 classes of cells in the human body. Labile cells, stable cells, and permanent cells. Labile cells are dividing all the time--always in the cell cycle. Examples include cells in the digestive tract, skin, respiratory tract, and stem cells in the bone marrow producing blood cells. Stable cells are in Gap O most of the time in the cell cycle, but can be stimulated to enter the cell cycle when needed. Examples include: the liver, the proximal tubules of the kidney, and endocrine glands. Permanent cells remain in the Gap 0 phase of the cell cycle, and will not come out no matter what!!! RBC's, nervous tissue, cardiac myocytes, and the lens of the eye are examples. Permanent cells cannot be replaced!!

The medulla oblongata is responsible for controlling vital autonomic functions such as blood pressure, heart rate, breathing, and swallowing. It also serves as a relay center for sensory and motor pathways traveling between the brain and spinal cord.

The brain and spinal cord send messages to the heart and blood vessels via the peripheral nervous system, specifically the sympathetic and parasympathetic divisions. The sympathetic nervous system innervates the heart and causes an increases heart rate and force of contraction; it also innervates the blood vessels and can produce either constriction of the blood vessels or relaxation.

The parasympathetic nervous system innervates the heart as well, but reduces heart rate and force of contraction. With few exceptions, the parasympathetic nervous system does not innervate the blood vessels.

As a consequence of this innervation, the peripheral nervous system regulates heart rate and blood pressure.

Pill bugs belong to the family Armadillidiidea. As members of the order Isopoda their nervous system is centralized, though in a very basic fashion, in the form OS nerve clusters called Ganglion.

The central nervous system is made up of the brain and spinal cord, which process sensory input and provide instructions to the body. This is the main control center of the body.

Some neurotransmitter molecules have a molecular structure that precisely fits the receptor site on the receiving neuron, much as a key fits a lock. When the agonist molecule excites, it is similar enough in structure to the neurotransmitter molecule that it mimics its effects on the receiving neuron. Morphine, for instance, mimics the action of endorphins by stimulating receptors in brain areas involved in mood and pain sensations. This antagonist molecule inhibits. It has a structure similar enough to the neurotransmitter to occupy its receptor site and block its action, but not similar enough to stimulate the receptor.

The nervous system basically works by neurons, or nerve cells. There are three different types, afferent sensory neurons, interneurons, and efferent motor neurons. The nervous system receives stimulation from the external environment or internal world (your body) and processes that information to elicit a response if necessary.

There are two main parts, the central nervous system and the peripheral nervous system. 1.you touch.

2.nerve feel and go up to brain

3.it goes to neuron

4.it calculat

5.finish the nervous system receives,process,and acts on a stimulus .

this is a bolt action rifle

If you mean changing in the locker room, no. All the guys or girls are rushing around so much or talking that they don't even really pay attention. Also dressing fast is helpful. We have t-shirts as a part of our suit so if I'm wearing a t-shirt on PE day I just put the PE shirt on over it.

The shaking of the vehicle at high speeds could be due to a variety of reasons such as wheel misalignment, unbalanced tires, worn-out suspension components, or issues with the drivetrain. It is advisable to have the vehicle inspected by a mechanic to diagnose the exact cause of the shaking.

It depends upon what you are referring to as connecting. Most nerve cells do not connect to each other, but pass their impulse from one to the other via synapses. There are also places where nerve cell bodies cluster together in the peripheral nervous system, and this is known as a ganglion. When a group of nerves come close to each other and are covered in connective tissue for protection, it is called a plexus. The nerve do not actually connect to each other, but are wrapped together.

Myelin sheaths in the central nervous system do the same basic job as they do in the peripheral nervous system. They insulate the axons, which are the conducting parts of nerve cells, so that they can carry their signal better. When this protective mechanism is damaged, as in ALD, the nerve cells cannot communicate properly and result in the signs and symptoms of ALD. Unfortunately this genetic disorder not usually caught in its early stages to provide effective treatment.

Drugs known as sedatives or depressants can slow down nerve activity by affecting the transmission of messages between nerve cells in the brain. These drugs are commonly used to reduce anxiety, induce sleep, or relax muscles. Examples include benzodiazepines, barbiturates, and alcohol.

an integrated whole, composed of diverse, interacting, specialized structures and subfunctions. [SEMATECH] 2 : an integrated structure of components and subsystems capable of performing, in aggregate, one or more specific functions.

Adenosine receptors stick through the neuron membrane, so that part of them are on the inside and part is on the outside of the cell. Now, when adenosine, a natural chemical in the body, attaches to the adenosine receptor it shifts the shape of the receptor, this shift reaches all the way to the part on the inside of the cell, and causes the receptor to release attached molecules called G-proteins. These g-proteins now float around the inside of the cell and have all sorts of effects, in this case, to inhibit the neuron. Caffeine also binds to the adenosine receptor, but it doesn't activate the receptor. This means that the receptor is totally shut down, and can't work to inhibit the neuron any more. The end effect is to allow the neuron to be more active than it was before the caffeine.

If you think of the brain as a central computer that controls all the functions of your body, then the nervous system is like a network that relays messages back and forth from it to different parts of the body. It does this via the spinal cord, which runs from the brain down through the back and contains threadlike nerves that branch out to every organ and body part. When a message comes into the brain from anywhere in the body, the brain tells the body how to react. For example, if you accidentally touch a hot stove, the nerves in your skin shoot a message of pain to your brain. The brain then sends a message back telling the muscles in your hand to pull away. Luckily, this neurological relay race takes a lot less time than it just took to read about it!