receptor agonists” cholinergic agonists are drugs that act on acetylcholine receptors‚ thus causing excitation of the parasympathetic autonomic nervous system there are 2 types of acetylcholine receptors 1) NICOTINIC RECEPTORS - are receptor-mediated ion channels - 3 types RECEPTOR TYPE MUSCLE TYPE GANGLION TYPE LOCATION - neuromuscular junction - sympathetic autonomic ganglia - parasympathetic autonomic ganglia - CNS CNS TYPE - agonists of nicotinic receptors are discussed later (“depolarizing
Premium Acetylcholine Neuron Psychology
Review Questions 1. What is the nervous system? What does it two? What two parts make up this system?It coordinates the actions of the animal and sends messages from one part of the body to another. It is composed of the brain and the spinal cord. 2. What is the gastrointestinal system? What does it do? It digests ingested food and gets rid of any waste after the food is digested. 3. What is epilepsy? What are the two different types of epilepsy? A disease of reoccurring seizures. Symptomatic
Premium Nervous system Thyroid hormone Critical thinking
whether alcohol and caffeine has an effect on heart rate‚ using the freshwater crustacean‚ Daphnia magna‚ as the experimental subject. For humans‚ alcohol works as a depressant‚ slowing down the heart rate of the consumer; caffeine works as a stimulant‚ increasing the heart rate of the consumer. The heart depends on an internal pacemaker system to keep it pumping consistently and at the right speed. Alcohol disturbs this pacemaker system and causes the heart to beat irregularly. Studies show that caffeine
Premium Blood Hypertension Heart
Artificial electrical stimulation of the nervous system is one of the foundations of neurotechnology. However‚ the use of electrical currents to stimulate the nervous system presents several challenges. It is difficult to achieve selective stimulation of only the targeted neurons without activating neighboring neurons. Further‚ electrochemical reactions at the electrode-tissue interface may lead to electrode dissolution or tissue damage. As an alternative‚ magnetic stimulation can be used to stimulate
Premium Neuron Action potential Nervous system
function of the nervous system. The Nervous System is a "network" which delivers information and monitors the processes taking place in our bodies at all times. The nervous system in all its aspects allows us to function as a single controlled and coordinated unit. The basic nerve cell nerve cell is a neuron; a chain of neurons is actually a "communication cable "inside our bodies. Neuron structure is basically the cell nucleus‚ the dendrites which receive information‚ and the axon which is responsible
Premium Nervous system Neuron Brain
1.a. Increase pressure from the thoracic cavity onto the venae cavae causes the stroke volume to decreases‚ cardiac output would decrease‚ venous blood pressure would eventually increase and venous return would also eventually increase. b. Fainting is due to a drop in blood flow to the brain. And holding your breath causes the heart rate to slow and blood vessels to dilate‚ which then leads to blood pools in the lower body and less blood going up to the brain. c. Compensatory mechanism that become
Premium Blood Heart Hypertension
alternative body systems for example the blood cells develop in their fatty inner tissue (red marrow). The body draws from mineral stores in bones during crucial times of shortage‚ for instance when calcium is needed for healthy nerve functioning. The skeletons key components are ligaments‚ the axial skeleton; this consists of the skull‚ spine‚ ribs‚ and breast bone. The appendicular skeleton which consists of limb bones‚ shoulders and hips. Muscular Muscles work with the skeleton‚ which provides a
Premium Blood Heart Lymphatic system
structures of the nervous system. central nervous system parasympathetic division spinal cord interneurons peripheral nervous system sympathetic division motor neurons somatic nervous system synapses neurons Nervous system consists of is divided into 1. which communicate across 2. 3. which is divided into which consists of which includes 4. 5. brain 6. autonomic nervous system using signal molecules called nerves which contains neurotransmitters 7. which contain which link sensory
Premium Nervous system Neuron
Adrenaline on the Heart Rate of Daphnia magna Hieu Duong 6 April 2011 Introduction The heart is a muscular organ that constantly pumps blood throughout the human body. The continuous flow of blood creates a system for vital organs within the body to gain oxygen and nutrients. The timely delivery of oxygen to the body’s organs is very crucial. Brain cells‚ for example‚ will die within minutes if the flow of oxygen is obstructed. For the blood to be pumped out of the heart and into the body
Premium Heart Blood Circulatory system
Neurotransmitter Chart name Psych 575: Physiological Psychology Date Instructor Neurotransmitter Chart Select four neurotransmitters. Complete a table for each neurotransmitter. Neurotransmitter 1 State if this neurotransmitter is inhibitory or excitatory: Acetylcholine Both inhibitory and excitatory depending on receptors present What is this neurotransmitter ’s role on behavior? Acetylcholine is a common neurotransmitter located in the central nervous system and the peripheral
Premium Human brain Neuron Nervous system