1. An excitatory postsynaptic potential a.is only one of several types of graded potential. b.will drive the membrane away from its potential. c.has a hyperpolarizing effect. d.is summed with an inhibitory postsynaptic potential at the input zone of a neuron in a process known as synaptic integration.2. One example of a simple reflex arc involves the a.conscious message to move part of the body. b.contraction of an antagonistic muscle when its opposite muscle relaxes. c.contraction of a muscle when it is stretched. d.receptor, the brain, and the effector.3. Areas of the spinal cord appear glistening white because of a.lack of meninges. b.cell bodies. c.myelin sheaths. d.neuroglia cells.4. Neuroglial cells a.metabolically and physically support other neurons. b.form sheaths around neurons and control the rate of impulse transmission. c.form more than half of the volume of the brain. d.all of these5. The hindbrain includes the a.thalamus. b.cerebellum. c.cerebellum and medulla oblongata d.pineal gland.

Preynaptic cell is the cell or a neuron from where the signal is passed on to the synapse to the…

Answered: An excitatory postsynaptic potential…

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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1. An excitatory postsynaptic potential

	a.	is only one of several types of graded potential.
	b.	will drive the membrane away from its potential.
	c.	has a hyperpolarizing effect.
	d.	is summed with an inhibitory postsynaptic potential at the input zone of a neuron in a process known as synaptic integration.

2. One example of a simple reflex arc involves the

	a.	conscious message to move part of the body.
	b.	contraction of an antagonistic muscle when its opposite muscle relaxes.
	c.	contraction of a muscle when it is stretched.
	d.	receptor, the brain, and the effector.

3. Areas of the spinal cord appear glistening white because of

4. Neuroglial cells

	a.	metabolically and physically support other neurons.
	b.	form sheaths around neurons and control the rate of impulse transmission.
	c.	form more than half of the volume of the brain.
	d.	all of these