Please answer as many as possible
Please answer as many as possible NERVOUS TISSUE Draw a diagram that shows the components and...
What nervous system cell conducts the impulses making all nervous system functions possible? glial cell Schwann cell neuron neuroglial cell p 4 of 14 Which of the following is NOT a glial cell? macrophage oligodendrocyte astrocyte microglia p5 of 14 All neurons consist of a cell body and at least two kinds of fibers. They are: one dendrite and one axon hillock only and only one dendrite one axon dendrite and one or more axons one axon and one or...
KEY TERMS March the numbered form with the definition that is it be definition the responding sumber in front of the appropriate 40. excitatory postsynaptic potential 21. resting potential 22 on leakage channels 23. equilibrium potential -24 graded potential 25. gated ion channels 26. depolarization 27. hyperpolarization Sensory neurons 2. central nervous system 3. motor neurons 4. intercurons 5. peripheral nervous system 6. somatic motor neurons *7. autonomic motor neurons 8. sympathetic 9. parasympathetic 10. cell body all dendrites 12....
1. The main receptive surface of neuron at a synapse for nerve Impulse transmission is: a. Axon neurotransmitter receptors b. Dendrite neurotransmitter receptors C. Nissl bodies receptors d. Axon terminal receptors 2. Two types of cells in nervous system are: a. Axons & dendrites b. Motor and sensory neurons c. Neurons & neuroglia d. Schwann cells & microglia 3. Myelin is rich in : a. Lipids b. Carbohydrates c. Nucleic acids d. Salts 4. Synaptic knobs are at end of:...
3. Label each of the parts of a neuron below. Include the axon, axon terminal, dend on below. Include the axon, axon terminal, dendrite, cell body, myelin sheath, and nucleus. bul 4. Which portion of the neuron receives incoming signals? Which part conducts signals away from the cell body? 5. Compare the function of sensory neurons, motor neurons, and interneurons 6. Label depolarization, hyperpolarization, peak action potential, resting potential, Na/K ATP pump. +30 Membrane potential (mv) Time 8. What are...
efer Figure2 to answer questions 18-21: 8. produce the myelin sheaths of neurons in the central Figure 2 nervous system. 19 form the Blood Brain Barrier 20._ are responsible for neurotransmitter release. 21 have ligand gated ion channels that are activated by neurotransmitters 22. Functionally, which cellular location is the neuron's "decision- making site" as to whether or not an action potential will be initiated? A axonal membrane B. axon hillock C. dendritic membrane D. presynaptic membrane 23. Calcium and...
Question 1: Draw, label, and explain the anatomical and physiological differences between a multipolar, bipolar and unipolar neuron. Be sure to include soma, axon, and dendrite(s) in your explanation image. Question 2: Explain what is occurring in this graph: +30 mV E mv 23 K Nat Nat kt Sodium gates dose Nat Nat Potassium gates open Depolarization Active sodium and potassium pumps Nyt 10 -55 mySeteteshold Repolarization Rest potential -70 myStimulus NS (1 Not Na+ K+ -90 mV Hyperpolarization Question...
For each multiple choice, what is the answer and why? 5. Myelin A) is only found in the peripheral nervous system B) is secreted from the axon terminals of autonomic neurons. C) is a carbohydrate within the membranes of some neuroglia. D) is a chemical present in the plasma membrane of neurons. E) influences the rate of conduction of an electrical signal down an axon. 6. Which of the following organs/structures is (are) innervated by somatic motor nerves? (only ONE...
Neuron Signaling and Muscle Contraction 1) “Dissect” the various parts of an action potential by describing the status (active or nonactive) of the voltage-gated sodium channel, voltage-gated potassium channel, sodium/potassium pump, and overall voltage and/ or voltage range (in millivolts, or mV) for each of the following. A) Resting membrane (prior to the initiation of an action potential) B) just before threshold to just after threshold (Depolarization) C) Rising phase of the action potential D) Falling phase of the action...
Bio 152 mideterm paper. 12. Name and explain the 3 types of movement across a plasma membrane, Circle the letter of the type that keeps a resting neuron at-70mV. How does the cell do this? 13. List the 3 types of Functional neurons and their purposes * 14. In your own words, describe how an Action Potential (AP) gets started. * 15. List the steps necessary for chemical information transmission across a synapse. Start your description where the AP reaches...
A Draw graphs showing the effect on action potentials in a cell following effective doses of each of the listed neurotoxins. Assume that the cell is normally brought to threshold by an electrical stimulus applied to it, so that any abnormality is due to the toxin. Precise values for voltage and duration are not important, just a general trend in how the action potential may be different from normal 1. puffer fish poison (blocks voltage-gated sodium channel activation) (25 Points)...