Nervous System

Thermoreceptors

I believe it's sympathetic and parasympathetic. Sympathetic is like the spark plug and gets the body revved up, the parasympathetic is like the brakes and slows the body down. That's how I learned it. Hope it's right. lol

Sensory receptor, afferent neuron, efferent neuron, effector organ.

Because the nervous system is what controls all the various tissues of the human body, without it pretty much nothing would occur in the body. You wouldn't pick up any "information" from your external or internal environment and so wouldn't learn. It also consists of motor neurons which send signals to our muscle cells to contract(our cells perform there functions under the regulation of the nervous system). Practically none of the things your body does, from the vasodilation of blood vessels in the skin, in response to changes in temperature or the secretion of hormones such as adrenalin, to the contraction of bicep muscles to lift a weight wouldn't occur without it.(although some muscles are myogenic and don't require nervous impulses in order to conract, such as the heart muscles, the rate of contraction etc are still controlled by the nervous system. In short EVERYTHING is controlled by the nervous system! and that's why it's called the control centre of the body.

The nervous system is considered the control center for the body because it is responsible for all functions of the body. The nervous system is what sends messages to your organs function and it also tells you limbs when and how to move.

The respiratory system

Neuroarthropathy is the medical term meaning any disease of nerve and joint.

The X craneal nerve (vagus), it goes all the way to your diafragm

All psychotropic drugs affect the nervous system, from marijuana to dipropyltryptamine or methamphetamine. This is how they work, if they didn't affect the nervous system (particularly the brain) then no one would feel an effect.

1.colds

2.laryngitis

3.pharyngitis

4.tonsilitis

5.bronchitis

6.bronchial asthma

7.pneumonia

8.tuberculosis

9.emphysema

10.lung cancer

The nervous system relies on signals from the brain to help us run.

The heart is innervated by parasympathetic and sympathetic fibers.

The hypothalamus controls a lot of different things in the human body so many things would happen if it was destroyed. You would lose the ability to control your body temperature, you would not know when you are hungry, and you would lose all behavior attachments.

although the heartbeat is not controlled by the nervous system,the autonomic nervous system does influence the heart rate.

Yes, the PNS contains ganglia, cranial nerves, and spinal nerves.

Neurons communicate with each other via 'synapses'. Let us consider an example of how this works. Say a neuron becomes excited because its antennae, which are called 'dendrites', have just received a number of inputs from neighbouring neurons. Say as a result of this it now 'fires an action potential'. This will involve a electrical pulse being sent from its cell body (the soma) all the way down its axon to the very end - the 'axon terminal'. This terminal has two main characteristics: 1) it stores and releases neurotransmitters; and 2) it comes into close apposition (not quite physical contact) with some process of another cell, usually a point on a dendritic branch (antenna). The tiny gap between the axon terminal and the recipient cell is called a synapse, or 'synaptic cleft'. As soon as the electrical impulse reaches the terminal, neurochemicals will be released into the synaptic cleft where they will diffuse a very short distance and bind to 'post-synaptic receptors' on the recipient cell's dendrite (or in some cases, its cell body). These chemicals are the 'inputs' that were referred to in the beginning of this example. And on and on it goes. The synapse is the point of exchange - the neurochemicals are the messengers. by sending signals
by sending substances across a tiny gap between them

The nerves of the somatic nervous system control voluntary actions - activities you can choose to do or not to do. The function of the somatic nervous system is to regulate the movement of the body. The somatic nervous system forms part of the peripheral nerves in the body.

Question 1. What is the nervous system in age related ? Why do these age related changes in brain structure, metabolism, and function occur ? Question 2. How to affects special senses and characterize intrinsic age related changes?

The meningesis the system of membranes which envelops the central nervous system. In mammals, the meninges consist of three layers: thedura mater, the arachnoid mater, and the pia mater. The primary function of the meninges and of the cerebrospinal fluid is to protect the central nervous system.

the peripheral nervous system

• Yup. Here are some of the problems that can happen:
• Pulmonary edema (intensive-care patients on breathing machines at 30 hours or more exposure)
• Decreases in the rate of gas exchange across the alveoli (intensive-care patients on breathing machines at 30 hours of exposure)
• Chest pains that were worse during deep breathing (volunteers with 24 hours of exposure)
• Decrease in the total volume of exchangeable air in the lung (vital capacity) by 17 percent (volunteers with 24 hours of exposure)
• Local areas of collapsed alveoli when plugged by mucus, a condition called atelectasis (patients, volunteers). The oxygen entrapped in the plugged alveolus gets absorbed into the blood, no gas is left to keep the plugged alveolus inflated and it collapses. Mucus plugs happen normally but are cleared by coughing. Also, if alveoli become plugged during air breathing, the nitrogen entrapped in the alveoli keeps them inflated.
• blindness caused by inadequate development of the capillaries in the lens and retina of the eye (premature infants). Reducing the oxygen to 40 percent can prevent this blindness.

electrical wave conducted along the nerve generated by the voltage difference across the cell membrane of the nerve cells.

The functions of the Integumentary system is that is serves to waterproof and protect your body, sensory, temperature regulation and vitamin D production

If you are nervous your immune make more adrenalin. Adrenalin is a think, what makes u happyer stronger etc... So adrenalin also increase your reflexes. If you are nervous your immune make more adrenalin. Adrenalin is a think, what makes u happyer stronger etc... So adrenalin also increase your reflexes.