Astrocytes are glial cells and have earned their name because of their star shaped figure. They make up a large population of cells in the brain and have a multitude of functions in the Central nervous system. The roles of the various types astrocytes include preserving‚ supporting‚ and mending nervous tissue. There are known to be three main kinds of astrocytes which are Protoplasmic‚ Fibrous‚ and Radial. Protoplasmic astrocytes happen in gray matter. They have a lesser amount of fibrils
Premium Brain Nervous system Neuron
the “Hold your Wee for a Wii” contest- Cannon’s Postulates are properties of homeostatic control systems in the body. 1. The nervous system has a role in preserving the “fitness” of the internal environment. The nervous system coordinates and integrates blood volume‚ blood osmolality‚ blood pressure‚ and body temperature‚ among other regulate variables. In regards to hyponatremia‚ the nervous system is increasing blood pressure‚ decreasing
Premium Water Epinephrine Blood
Nervous System II: Anatomy Review 1. The somatic nervous system stimulates ____________ muscle. The autonomic nervous system stimulates ___________ muscle‚ ____________ muscle‚ and ___________. 2. The autonomic nervous system (ANS) consists of two divisions‚ each innervating the effector organs. The sympathetic nervous system (SNS) generally speeds up everything except digestion. The parasympathetic nervous system (PNS) generally slows down everything but digestion.
Premium Neuron Action potential Nervous system
times required. The system within the body which assists to control and coordinate the functioning of all the systems is called the nervous system. The nervous system works alongside the endocrine system allowing communication and coordination between the many organs and systems within the human body. This allows them to function correctly‚ and have the ability to respond to stimuli when needed. The nervous system has two main systems within itself. These are the central nervous system known as CNS‚ and
Premium Action potential Neuron Nervous system
INTRODUCTION Pediatric nursing or child health nursing is the specialty nursing care of infants‚ children and adolescents. Pediatric nursing is an excellent career for those who love kids and don’t mind hard work. The day of a pediatric nurse can be hectic‚ working with patients that range from newborns to teenagers. No two days are ever the same. Pediatric nurses work mostly on the pediatric halls in hospitals‚ although some may also work in a doctor’s office. The work involved
Premium Nervous system Neuron
tissue is found in ligaments‚ tendons‚ cartilage‚ and bone. Nervous tissue forms the nervous system‚ which is responsible for coordinating the activities and movements of your body through its network of nerves. Parts of the nervous system include the brain‚ spinal cord‚ and nerves that branch off of those two key parts. Nervous tissue consists of two kinds of nerve cells: Neurons are the basic structural unit of the nervous system. Each cell consists of the cell body‚ dendrites‚ and axon. Neuroglia
Premium Neuron Muscle Bone
The Biology of Mind Neuron Communication Neuron is a nerve cell‚ basic building block our nerve system Neurons consists in: Dendrites : neurons bushy branches and it listens Axons: Tube that passes the messages and it speaks – transmit Action potential : is a neural impulse‚ brief electrical charge that travels down an axon. Threshold: is the level of stimulation required to trigger a neural impulse Myelin Sheath covers an axon and some neurons Synapse : is the junction
Premium Nervous system Neuron Brain
dangerous if someone with a heart attack have pain in their arm‚ and they might not recognize what is happening to them. 2. Why olfaction and gustation are considered “chemical” special senses? Both olfaction and gustation are chemosensory systems. Chemoreception means a molecule from the environment binds to a receptor on a cell’s surface. The receptor is shaped to receive and then respond when a specific type of molecule binds. This binding triggers a signal with the information about
Free Hypothalamus Growth hormone Thyroid
The Nervous System (pp. 54-57) 4. Identify the major divisions of the nervous system and describe their functions‚ noting the three types of neurons that transmit information through the system. 5. Contrast the simplicity of the neural pathways involved in reflexes with the complexity of neural networks. The Brain (pp. 58-80) 6. Identify and describe several techniques for studying the brain. 7. Describe the functions of the brainstem‚ thalamus‚ cerebellum‚ and limbic system.
Premium Brain Nervous system Neuron
Neurogenic Shock Neurogenic shock is a type of shock that is caused by a spinal cord injury that affects important nerves in the nervous system. Injury to the nervous system causes the walls of blood vessels to relax‚ which increases the blood pressure. Neurogenic shock mainly affects the spinal cord. The spinal cord consists of nerves that carry incoming and outgoing messages between the brain and the rest of the body. Neurogenic shock occurs when a spinal cord injury happens‚ particularly involving
Premium Nervous system Neuron Axon