Exercise 3: Neurophysiology of Nerve Impulses: Activity 1: The Resting Membrane Potential Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. What is the approximate concentration of K+ inside a typical cell (intracellular concentration)? You correctly answered: a. 150 mM 2. What is the approximate concentration of K+ outside a cell (extracellular concentration)? You correctly answered: b. 5 mM 3. What is the approximate concentration of Na+ inside
Free Action potential Potassium Neuron
photoreceptive layer of rods and cones. 2. When the photoreceptors are stimulated they transmit impulses to the bipolar cells that project to the ganglion cells of retina. 3. The axons from the ganglion cells converge at the optic disc to form optic nerve which enters the cranial cavity through the optic foramen. At the optic disc these axons acquire a myelin coat from oligodendrocytes of the CNS. 4. The optic chiasm is formed by decussating fibers‚ which originates from the nasal half of the retina‚ fibers
Premium Management Marketing Psychology
Inhibiting another neuron will make the chances of a/an __________________ less likely. 4. Axons from one neuron can synapse with the dendrites or soma of another axon. These synapses are called ______________________ (on dendrites) and _________________________ (on soma). They carry input signals to the other neuron. Axons from one neuron can synapse with the axon terminal of another neuron. These synapses are called ________________________‚ and they regulate the amount
Premium Neuron Action potential Nervous system
LEVELS OF ORGANIZATION OF NERVOURS SYSTEM: NEURONS: * STRUCTURE AND FUNCTION: Specialized cell transmitting nerve impulses; a nerve cell. Neurons have specialized projections called dendrites and axons. Dendrites bring information to the cell body and axons take information away from the cell body. Neurons communicate with each other through an electrochemical process. Information is transmitted to the receiving cell at junctions via chemical messengers called neurotransmitters. At this juncture
Premium Neuron Nervous system
ARTHROPODS The other complex compartmentalized nervous system is found in arthropods (see the diagram). The arthropodan brain consists of three main regions: the protocerebrum‚deutocerebrum‚ and tritocerebrum. The anterior protocerebrum‚ which receives the nerves of the eyes and other organs‚ contains centres‚ or neuropils‚ such as the optic centres and bodies known as corpora pedunculata. The neuropils function as integrative systems for the anterior sense organs‚ especially the eyes‚ and in control
Premium Nervous system
the cell body‚ and one axon. The main part of the cell‚ the part that carries on the general functions‚ is the cell body. Dendrites are extensions‚ or processes‚ of the cytoplasm that carry impulses to the cell body. An extension or process called an axon carries impulses away from the cell
Premium Tissues Connective tissue Epithelium
in the second neuron. Inhibiting another neuron will make the chances of a/an __inhibits______ less likely. 4. Axons from one neuron can synapse with the dendrites or soma of another axon. These synapses are called _axosomatic___ (on dendrites) and __axodendritic____ (on soma). They carry input signals to the other neuron. Axons from one neuron can synapse with the axon terminal of another neuron. These synapses are called ____axoaxonic___‚ and they regulate the amount of _chemical
Premium Action potential Neuron
|dendrites‚ cell body‚ axon |resting membrane | |Chemically-gated |dendrites‚ cell body |synaptic | |Voltage-gated |axon hillock‚ unmyelinated axons‚ nodes of|action | | |Ranvier (myelinated axons) |
Premium Neuron Action potential Nervous system
Tissues in the Body Unit 5 – Anatomy and Physiology for Health and Social Care Epithelial Cuboidal – cube shaped‚ prominent nucleus. Can be found in medulla of kidney. Does not allow for passive diffusion easily. Columnar – tall‚ vertical‚ thick cells. Can be found in the small intestine. Does not allow passive diffusion easily. Active transport is needed. Move nutrients from intestine to blood = absorption! Can have microvilli to increase surface area. Squamous – large‚ thin and prominent
Premium Kidney Epithelium Nephron
that neurons have at least two distinguishable parts: a central region that contain the cell nucleus (cell body or soma)‚ and numerous thin tubes (neurites) that radiate away from the central region. The neurons consisted of two types: axons and dendrites. Axons were recognized by histologists of the day to act like “wires” that carry the output of the neurons while dendrites were thought to act as the antennae of the neuron to receive incoming signals‚ or input. However‚ Santiago Ramon y Cajal
Premium Brain Psychology Nervous system