deplete serotonin. Using a questionnaire which looked at hostility and aggression levels it was found that treatment with this drug was associated with higher scores in hostility and aggression in males. There appears to be a link between the neurotransmitter dopamine and aggression‚ increased dopamine levels can produce increased levels of aggressive behaviour. For example‚ the increased rates of aggressive behaviour found in the schizophrenic population are believed to be due to the raised levels
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spinal cord. Both the chemical messenger and the nerve impulse will travel to the adrenal gland. These nerve signals activate the release of norepinephrine and epinephrine into the bloodstream. It’s important to note that although known as both a neurotransmitter and a hormone‚ norepinephrine works alongside epinephrine as a hormone in times of stress. The release of these two hormones acts as catalyst for all of the body’s reactions. The hormones bind to receptors and trigger a signaling
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Hayes Bonus assignment April 17‚ 2012 Acetylcholine Acetylcholine better known as ACh is a neurotransmitter that is produced by cholinergic neurons. Nerves that rely on Ach are classified as cholinergic nerves. Acetylcholine is found in both the peripheral nervous system and the central nervous system. Acetylcholine can also be found in the autonomic nervous system and is the only neurotransmitter used in motor division of the somatic nervous system. In the peripheral nervous system acetylcholine
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Biological Approach to Depression The biological approach is based on the idea that depression has a physical or organic cause. One explanation suggests that some people are simply more genetically inclined to develop depression‚ as Hecimovic suggested that it was caused by a mutation in the 5-HTT gene‚ which was responsible for coding for serotonin production‚ and that this mutation is inherited. Family studies‚ twin studies and adoption studies have all helped support the role of genetics in
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person’s behavior‚ but I don’t personally believe that it changes a person’s behavior. One hormone that can drastically influence a person’s mood and may severely influence (but not control) a person’s behavior is called serotonin. Serotonin is a neurotransmitter that has also been described by the term the “mood molecule.” Scientific study has determined that serotonin can set a person’s emotional tone. It doesn’t necessarily decide how a person is going to act‚ but it gives a basis for people to be
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The biological explanation for Anorexia Nervosa focuses on the role of neurotransmitters. It suggests disturbances in the levels of serotonin and dopamines are characteristic of anorexia. Bailer et al compared serotonin activity in women recovering from restricting anorexia with those recovering from purging type anorexia with a healthy control group. They found that the group recovering from purging type anorexia had higher serotonin activity. They also found the highest levels of serotonin in women
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me tell you how our body respond to energy drinks. BODY I. Energy drinks have caffeine a. Caffeine causes the following physiological effects: a.i. It stimulates the central nervous system (CNS) resulting in alertness. a.ii. It releases neurotransmitters (particularly acetylcholine) producing excitement. a.iii. It causes the pituitary gland to release adrenaline. a.iii.1. Adrenaline increases the heartbeat and causes the liver to release glucose into blood for higher energy. a.iii.2. Adrenaline
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EXERCISE 6: CARDIOVASCULAR PHYSIOLOGY |ACTIVITY 1: Investigating the Refractory Period of |Answers | |Cardiac Muscle | | |Which of the following types of muscle tissue can depolarize spontaneously in the |C- Cardiac Muscle
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|α cells |Cells in the islets of Langerhans that release glucagon in response to low blood glucose levels. | |Acetylcholine |A neurotransmitter (transmitter substance) found in cholinergic synapses. | |Acetylcholinesterase |An enzyme in the synaptic cleft that breaks down the transmitter substance acetylcholine. | |Actin |A protein
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act on the neurotransmitters responsible for carrying the vestibular signal from primary vestibular neurons. That is‚ these drugs seek to block the conduction of impulses from the semicircular canals and otolith organs‚ before these nerve impulses reach central vestibular structures (Smith & Darlington‚ 1996). The vestibulo-ocular reflex is a reflex eye movement‚ which is imperative in the control of balance. It functions to stabilize images on the retinas. Six primary neurotransmitters have been
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