Valentina Hernandez
Mrs. Long
AP Psychology P.1
August 28, 2016
AP Psychology Unit 3A Notes: Neural Processing and the Endocrine System
1. Neurons is a basic building block of the nervous system. The sensory nerves carry the message from body tissues to the brain and spinal chord to be processed. The motor neurons are then used to send instructions to the body tissue from the brain and spinal cord. Dendrites, which are connected to the body cell (soma) receive information and pass it through the axon. Myelin sheath covers the axon and helps speed the process. When triggered by a signals from our senses or other neurons, the neuron fires an impulse called the action potential. The resting potential is the neuron’s visual charge of positive
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Neurotransmitters send messages to different parts of the body that trigger certain behaviors. For example, acetylcholine is a neurotransmitter that has an effect on movement by being released to muscle cell receptors that cause muscles to contract. Researchers have found that the brain produces its own opiates and therefore certain drugs can trigger them. The problem with this is that the brain begins to rely on those drugs and stops producing their own natural opiates. This can cause struggle and lead to addiction. Certain drugs alter neurotransmitters by either mimicking or blocking them. Agonist molecules can bind to a similar neurotransmitter to mimic and enhance its effects, while antagonists bind to neurotransmitters but block its …show more content…
The central nervous system is composed of the brain and spinal cord and the peripheral nervous system is composed of the body’s sensory receptors, muscles, and glands. The peripheral nervous system is made up of somatic and automatic. Somatic is the voluntary movement of our skeletal muscles. When we hear the bell ring, our somatic nervous system carries the message to the brain and the brain reports back to our muscles. The autonomic nervous system controls our glands and muscles in our internal organs. Some things this nervous system does is taking control of our digestive system and our heart beat. There are two functions of the autonomic nervous system- the sympathetic and the parasympathetic nervous system. The sympathetic nervous system arouses and expands energy. If someone gets excited or nervous in a situation, their blood pressure will rise, their digestion will slow down, their heartbeat will accelerate, their blood sugar will rise, and they will sweat to cool down. The parasympathetic is the opposite. It tries to conserve energy by decreasing your heartbeat, lowering your blood sugar, and so
Explain the characteristics of the endocrine system that make its reactions different from those of the nervous system.
The proper functioning of the cells allow us to act, think, learn, remember and control complex behaviors. In order to understand how the brain performs these essential functions we must first understand the different components of the cells; such as the function of neurons and their supporting cells in the nervous system. The communication from neuron to neuron, the processes involved in the production of an action potential, how an action potential is conducted along a myelinated axon; and the process of synaptic transmission will be discussed and examined.
Neurons, nerve cells, have three basic parts: the cell body, dendrites, and axon. Neurons transmit signals to other nerve cells and throughout the body. They are simple components in the nervous system. The cell body includes the nucleus, which is the control center of the neuron. The dendrite branches off the cell body and receives information. The axon is attached to the cell body and sends information away from the cell body to other cells. When the axon goes through myelination, the axon part of the neuron becomes covered and insulated with fat cells, myelin sheath. This increases the speed and efficiency of information processing in the nervous system. Synapse are gaps between neurons, this is where connections between the axons and dendrites.
The nervous system is in charge of carrying signals from the fingers to the brain, processing information, and sending signals back from the brain to the fingers. The nervous system’s afferent nerves carry signals from the peripheral nervous system to the central nervous system, neural integration is carried out by interneurons, and efferent neurons send signals back from the central nervous system to the peripheral nervous system. Neurons conduct messages in the form of nerve impulses. They have dendrites to
The endocrine system is a group of glands distributed throughout the human body. This group of glands secretes substances called hormones. These hormones are dumping into the bloodstream (Shier, Butler & Lewis, 2009). The endocrine system does not have a single anatomic location. It is dispersed throughout the human body. The final purpose of this process is to control, regulate, and coordinate the functioning of the human body. Some body functions can be activated or inhibited by hormones, which are secreted in very small quantities. The hormone related diseases may be due to hyper secretion, or a hypo secretion. The hormones secreted by the endocrine glands regulate growth, development and function of many tissues, and coordinate the
The endocrine system is inclusive of the glands of the body and the hormones they secrete. The secretion of these hormones helps to control numerous bodily functions. Hormones are chemicals that work in correlation with your body’s systems to function properly! These hormones are secreted directly into the bloodstream. Some of the systems controlled by the endocrine system are: reproduction, metabolism, growth and development, response to stimuli and homeostasis.
The parasympathetic nervous system (PNS) controls homeostasis and the body at rest and is responsible for the body's "rest and digest" function. The sympathetic nervous system (SNS) controls the body's responses to a perceived threat and is responsible for the "fight or flight" response. The PNS and SNS are part of the ANS, or autonomic nervous system which is responsible
There are two divisions of the autonomic nervous system: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).The structure of the two systems differ mainly in the organization of their neurons.
ANS primarily involves emotional responses and controls the smooth muscles, heart muscle and secretion of the glands in the human body and supplies the internal organs, including the blood vessels, stomach, intestine, liver, kidneys, bladder, genitals, lungs, pupils, heart, and sweat, salivary, and digestive glands. Furthermore, this system is divided into two parts: the sympathetic and the parasympathetic nervous system having each one its proper function Fig
The Nervous System and the Endocrine are part of the human anatomy. Both of the system have their own jobs to keep the body to stay alive. The system are both unique in their own ways. In the system they have something are similar to each other. One thing that don’t have in common is there function and how they message to body to do a certain job to
Neurons are the basic data processing units for the human brain. Every neuron can receive 1000 electrical impulses from other neurons. Impulses that all come at the same time are added together and, if they are strong enough, they can generate electrical discharge, which is known as action potential or a nerve impulse. Neurons have a cell body or soma. Additionally, they have myelin. Myelin allows nerve impulses to move quickly from one neuron to another, which makes rapid signal transmission possible. It is a critical part of the nervous system and if it is not in a body it can be devastating, which can be exhibited through multiple sclerosis. The nervous system plays an important role in the body 's ability to feel sensations and is made up of neurons, cells, and are necessary to perform even the simplest tasks. Your body has billions of tree-like processes that are involved in sensing this information from the environment, relaying the information to your brain, and sending information to carry out the act of answering your cell phone as a response to the initial sensory input.
The nervous system of the human body can be separated into two parts: the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The brain and the spinal cord make up the Central Nervous System, which is the nervous system’s processing center. The Peripheral Nervous System “consists of nerves that branch from the Central Nervous System and connect it to other body parts” (Shier, Butler, Lewis 2015). The somatic nervous system and autonomic nervous system are the subdivisions of the Peripheral Nervous System. In this essay, I will distinguish between the Central Nervous System and the Peripheral Nervous System.
The structures of the body is created to interact with each other to keep all organisms healthy and functioning properly. Each system has its own way of connecting with each other to so each organism depends on the next one. The nervous system controls and has a direct connection inside the body which several organism. All the systems report directly to the brain and helps to adjust to respond the body and help the body function properly. There are two systems that are major that work together to keep the body flowing. There are two system that work together to keep many illnesses out of the body. The endocrine system that has chemical compounds and hormones this helps to the body pumping and give cells activities. Then the hormones flow into
Within field studies, the best way to understand the workings of the endocrine system usually involves injecting a specimen with a hormone or removing the gonads of the specimen to observe changes in hormone concentrations (Mazur, Booth, & Dabbs, 1992). However with human subjects this kind of procedure proves to be rather unethical, and therefore researchers have found that the best way to observe a particular hormone, such as testosterone, is to observe what occurs when an individual is subjected to competition (Mazur et al., 1992). It has been observed that as an individual, male or female, participates in a competitive event, their testosterone levels are subject to rise (Booth, Shelley, Mazur, Tharp, & Kittok, 1989). This notion is further supported through the observation of rising testosterone levels in those individuals who win their event. In fact it has been suggested that an individual’s testosterone level increases in order to maintain an aura of dominance, and thus the act of winning a competition increases the level of testosterone in order to maintain that dominance and level of competitiveness over the game (Booth et al., 1989). While testosterone levels increase with victory, defeat often inspires the decrease of testosterone levels as well as feelings of competitiveness (Booth et al., 1989). This phenomenon is not limited to just those individuals competing in an event; in fact it has also been observed that even those watching a particular
Nervous System- the Hypothalamus connects the Nervous and Endocrine systems. The nervous system receives internal and external stimulus. The nervous system then interprets the stimulus. Then tells the Endocrine system to produce certain hormones to maintain homeostasis.