Nervous System: an extensive network of specialized cells that carries information to and from all parts of the body. Neuron: the basic cell that makes up the nervous system and that receives and sends messages within that system. Dendrites: branchlike structures that receive messages from other neurons. Soma: the cell body of the neuron responsible for maintaining the life of the cell. Axon: tubelike structure that carries the neural message. Glial cells grey fatty cells that provide support for
Premium Nervous system Neuron Brain
Caffeine is a central nervous system stimulant of the methylxanthine class. It is one of the most worldwide consumed psychoactive substances and it is totally legal. The chemical name of caffeine is 1‚ 3‚ 7 – Trimethylpurine – 2‚ 6‚ - dione. Its molecular formula is C8H10N4O2 and it has a molecular mass of 194.19 g/mole. Caffeine is an odourless‚ white crystalline purine‚ a methylxanthine alkaloid‚ which is closely chemically related to adenine and guanine. Caffeine acts through multiple mechanisms
Premium Caffeine Coffee Brain
also helps with the activities in our lives such as remembering and making decisions and learning. 4. Give one example of a neurotransmitter? What is the purpose of this specific neurotransmitter? One example is acetylcholine. It is found in the nervous system and it sends messages relating to our skeletal muscles. Also‚ it helps with the capacity of memory capabilities. 5. Who are neuroscientists? They study the brain and behavior;
Premium Nervous system Neuron Brain
Front this divison of the peripheral nervous system includes the neurons found along the GI tract Back enteric nervous system Front name for a group of neuron cell bodies in the CNS Back nucleus Front name for a group of neuron cell bodies in the PNS Back ganglia Front these ions are cross the neuron cell membrane during a hyperpolarization Back Cl- K+ Page 1 Front Back these gates respond to chemical stimuli such as nerutransmitters
Premium Neuron Action potential Nervous system
Chapter 9 Motivation and Emotion MULTIPLE CHOICE 1. Motives activate behavior and propel the organism a.|to flee.|c.|toward goals.| b.|to respond.|d.|to drives.| ANS: C DIF: 2 REF: 9-188 OBJ: 1 MSC: TYPE: Factual 2. The study of motivation is an attempt to understand __________ a behavior occurs. a.|why|c.|when| b.|how|d.|all of these| ANS: A DIF: 1 REF: 9-188 OBJ: 1 MSC: TYPE: Factual NOT: BTC 3. Psychologists define hypothetical states that activate behavior and propel one towards
Premium Autonomic nervous system Sexual arousal Emotion
they can be used in men to increase sperm count or in young boys if their testes haven’t dropped on their own for one reason or another. Cushing’s disease Cushing’s disease is caused by a tumor or other growth on the pituitary gland of the endocrine system. Due to the growth‚ the pituitary gland releases too much ACTH which stimulates the production of cortisol (a stress hormone). The most common symptoms are: a slow growth rate in children‚ back or other bone pain‚ excess hair growth‚ irregular or
Premium Endocrine system Endocrine gland Thyroid
The Gross Clinic‚ by Thomas Eakins HA-314-801 The History of American Art “I never knew of but one artist‚ and this is Tom Eakins‚ who could resist the temptation to see what they think ought to be rather than what is.” – Walt Whitman Thomas Eakins‚ was one the most important painters of American Art History. He also was an photographer‚ sculptor‚ and fine arts educator. In this essay‚ you will explore his life‚ his works and one of his most famous paintings’ which considered shocking by
Premium
CENTRAL NERVOUS SYSTEM STIMULANTS CENTRAL NERVOUS SYSTEM STIMULANTS Definition Stimulants are a substance which tends to increase behavioral activity when administered. Primary action of a diverse group of pharmacologic agents – adverse effect associated with many drugs. Signs and symptoms * Elevate Mood * Increase Motor Activity * Increase Alertness * Decrease need for Sleep *In case of overdose lead to convulsion and death. Mode of Action * Block neurotransmitters
Premium Caffeine Neurotransmitter Dopamine
The Nervous System: Membrane Potential 1. Record the intracellular and extracellular concentrations of the following ions (mM/L): Intracellular Extracellular Sodium (Na+) Potassium (K+) Chloride (Cl–) 2. Excitable cells‚ like neurons‚ are more permeable to ___________ than to ___________. 3. How would the following alterations affect the membrane permeability to K+? Use arrows to indicate the change in permeability. a. An increase in the number of passive K+ channels
Premium Neuron Action potential Nervous system
ANATOMY AND PHYSIOLOGY OF THE DIGESTIVE SYSTEM The digestive system is basically a tube running through the body from the mouth to the anus. The organs of the digestive system include the oral cavity (mouth)‚ esophagus‚ stomach‚ small and large intestine and rectum. Their role is to break down food and deliver the products to the blood for dispersal to the body cells. The undigested food that remains in the tract leaves the body through the anus as feces. The break down activities that
Free Digestion Digestive system Small intestine