Fill in the Gaps Comparing Somatic and Autonomic Nervous Systems Fill in the blanks in the following chart to compare these two divisions of the nervous system SOMATIC Innervates muscle Consists of nerve fiber leading from CNS to target (Hint: A number) Secretes the neurotransmitter Has an effect on target cells Operates under. control AUTONOMIC Innervates Consists of nerve fibers that synapse at a before reaching target Secretes muscle, and cardiac muscle Has an effect on target cells Operates and as neurotransmitters or

Fill in the Gaps Comparing Somatic and Autonomic Nervous Systems Fill in the blanks in the following chart to compare these two divisions of the nervous system SOMATIC Innervates muscle Consists of nerve fiber leading from CNS to target (Hint: A number) Secretes the neurotransmitter Has an effect on target cells Operates under. control AUTONOMIC Innervates Consists of nerve fibers that synapse at a before reaching target Secretes muscle, and cardiac muscle Has an effect on target cells Operates and as neurotransmitters or

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Part D- Organization of the Sympathetic Nervous System The divisions of the autonomic nervous system are distinctly organized. Place the term into the bin that best describes its location. • View Available Hint(s) Reset Help Short preganglionic fiber Long preganglionic fiber Long postganglionic fiber Chain ganglia Thoracolumbar origins Vagus nerve (CN X) Ganglia within target tissue Pelvic nerves Sympathetic division Parasympathetic division Submit
You are a famous researcher working in your lab. You isolate a piece of muscle (call it Muscle A) and examine its innervations. You find a short preganglionic neuron synapsing onto a long postganglionic neuron, which synapses onto the muscle. Then you examine Muscle B and find a single neuron innervating it. Remembering your favourite physiology class, you instantly recognize what types of neuronal connections you will find on both Muscle A and Muscle B. First give 2 characteristics of the synapse onto Muscle A. Then give 2 ways in which the synapse of Muscle B will be different.
An action potential travels down a neuron: O From dendrite to axon terminals Moves even faster because of the Nodes of Ranvier Involve Sodium Potassium Pumps All of the above
Astrocytes Support neurons in the PN + Ependymal cells Support neurons in the PN Microglia Clear away dead cells
The___division of the nervous system carries nerve impulses to glands; cardiac muscles (heart) ; and smooth muscle in organs. somatic sensory (afferent) visceral sensory (afferent) somatic motor visceral motor (autonomic)
There is a short delay in the action potential in the nerve terminal to the membrane depolarization in postsynaptic cell. Why does this occur? (Choose one or more)
The nervous system helps all parts of the body communicate with each other. It is made up of several sub-divisions with each subdivision havingstructural and functional characteristics that distinguish it from the others. Complete the diagram to show all the missing sections and explain their functions and where relevant their relationships to each other.
You stand up from your chair. Describe the process involved from the initiation of the movement to the movement itself. Describe the involvement of the central nervous system, peripheral nervous system, bones and muscles.
nich of the following offers the best description of neural transmission across a mammalian synaptic cleft? Action potentials at nerve terminals cause the release of chemicals that diffuse across the gap o It involves the flow of K+ and Na+ across the gap. O Neural impulses travel across the gap as electrical currents O Neural impulses travel across the gap in both directions
All of the followings are correct except, ---------------------. Even “simple” nervous systems can display complex behavior More complex nervous systems show centralization In many species, ganglia grouped together at the anterior end form an integrating center Nerve nets carry action potentials in both directions interconnected nerves are called ganglia
The endplate potential is produced by too spread Na* channels simultaneous flow of Na* and K* ions flow of K* only negative currents saltatory transmission from the nerve to muscle