Chapter 12 Quiz

What is the correct arrangement of a monosynaptic reflex arc from stimulus to response? __5__ effector __2__ somatic sensory neuron __1__ receptor __3__ synapse __4__ somatic motor neuron

5, 2, 1, 3, 4

The synapse consists of three parts. They are the ________. This question has more than one correct answer. You must choose the correct answers to get credit. a. synaptic cleft b. presynaptic membrane c. postsynaptic membrane d. astrocyte

a, b, c

Which of the following statements regarding the nervous system is true? a. Motor neurons carry signals from the CNS to effector cells b. Cell bodies are the white matter and axons are the gray matter. c. The peripheral nervous system is composed entirely of nerves d. Sensory neurons carry signals from the CNS to sensory receptors

a. Motor neurons carry signals from the CNS to effector cells.

Which of the following statements regarding the nervous system is true? a. Nerves are part of the peripheral nervous system b. The brain is part of the peripheral nervous system c. Spinal nerves contain either sensory or motor axons, but not both d. Ganglia are part of the central nervous system

a. Nerves are part of the peripheral nervous system

This neuronal region transmits electrical impulses away from the cell body. a. axon b. synapse c. terminal bouton d. dendrite e. cell body

a. axon

This part of the neuron may have branching collaterals. a. axon b. terminal bouton c. cell body d. dendrite e. synapse

a. axon

This region of a neuron is also referred to as a terminal bouton. a. axon terminal b. dendrite c. axon d. synapse e. cell body

a. axon terminal

Which of the following cells are excitable? This question has more than one correct answer. You must choose the correct answers to get credit. a. oligodendrocytes b. neurons c. cardiac muscle d. skeletal muscle e. smooth muscle

b, c, d, e

Which of the following is a true statement regarding the synapse? a. Once released from the postsynaptic neuron, the neurotransmitter will diffuse across the synaptic cleft and bind to the presynaptic neuron. b. The synaptic cleft is a fluid-filled gap located between the presynaptic neuron and the postsynaptic neuron. c. Neurotransmitters are stored in the dendrites of the postsynaptic neuron. d. Binding of the neurotransmitter to the postsynaptic neuron results in the release of magnesium into the synaptic cleft.

b. The synaptic cleft is a fluid-filled gap located between the presynaptic neuron and the postsynaptic neuron.

This tends to be the longest process from a neuron. a. dendrite b. axon c. synapse d. axon terminal e. cell body

b. axon

If a nerve impulse is traveling from the central nervous system to the organs of the body, the impulse would be traveling on a: a. ganglion. b. motor neuron. c. interneuron. d. sensory neuron.

b. motor neuron.

Which part of this diagram of a neuron depicts myelin from a Schwann cell covering the axon? a. b. c. d. e.

c.

Which of the following statements is correct? a. The autonomic nervous system is composed of the brain and spinal cord. b. The central nervous system is composed of the sensory division and the motor division. c. The motor division of the peripheral nervous system is composed of the somatic division and the autonomic division. d. The peripheral nervous system is composed of the autonomic nervous system and the brain. e. The autonomic nervous system is composed of the somatic division and the motor div

c. The motor division of the peripheral nervous system is composed of the somatic division and the autonomic division.

In this part of a neuron, neurofilaments, actin microfilaments, and microtubules are particularly abundant, providing structural support and a transport network. a. cell body b. synapse c. axon d. dendrite e. terminal bouton

c. axon

Which glial cell is ciliated to move cerebrospinal fluid? a. astrocyte b. microglial c. ependymal cell d. oligodendrocyte e. satellite cell f. Schwann cell

c. ependymal cell

White matter represents a. dendrites traveling together in the autonomic nervous system. b. aggregations of neuron cell bodies in the spinal cord. c. myelinated axons bundled together in the central nervous system. d. aggregations of neuron cell bodies in the brain.

c. myelinated axons bundled together in the central nervous system.

Neurotransmitter binds to _____ when it crosses a synapse. a. epithelia b. calcium c. receptors d. membranes

c. receptors

Which division of the nervous system carries signals to skeletal muscles? a. parasympathetic nervous system b. somatic sensory nervous system c. somatic motor nervous system d. sympathetic nervous system

c. somatic motor nervous system

A man walking barefoot stepped on a piece of glass. His foot jerked upward in which type of reflex? a. somatic, monosynaptic withdrawal reflex b. visceral, monosynaptic withdrawal reflex c. somatic, polysynaptic withdrawal reflex d. visceral, polysynaptic withdrawal reflex

c. somatic, polysynaptic withdrawal reflex

Identify the letter that indicates the region of a neuron with a name that means "little hill." a. b. c. d. e.

d.

A neuron's action potentials normally travel along its axon a. into space b. in either direction, depending on the needs of the person c. toward the cell body d. away from the cell body

d. away from the cell body

Sensory input is one of the nervous system's interconnected functions that a. performs body functions b. carries signals from the spinal cord c. involves carrying signals from the CNS to effector cells d. carries signals from sensory receptors to integration centers

d. carries signals from sensory receptors to integration centers

An axosomatic synapse occurs between the axon terminals of one neuron and the ________ of a proximal neuron. a. dendrite b. terminal bouton c. synapse d. cell body e. axon

d. cell body

The two major anatomical divisions of the nervous system are the a. sensory nervous system and motor nervous system b. voluntary nervous system and involuntary nervous system c. sympathetic nervous system and parasympathetic nervous system d. central nervous system and peripheral nervous system

d. central nervous system and peripheral nervous system

In an axodendritic synapse, the region of the postsynaptic neuron that binds the released neurotransmitter is the a. cell body b. synapse c. terminal bouton d. dendrite e. axon

d. dendrite

Ganglia represent _____. a. groups of neuron cell bodies in the central nervous system b. groups of axons in the peripheral nervous system c. groups of axons in the central nervous system d. groups of neuron cell bodies in the peripheral nervous system

d. groups of neuron cell bodies in the peripheral nervous system

The functional unit of the nervous system is the a. glial cell b. astrocyte c. axon d. neuron

d. neuron

Which glial cell cell produces myelin in the central nervous system.? a. Schwann cell b. ependymal cell c. satellite cell d. oligodendrocyte e. astrocyte f. microglia

d. oligodendrocyte

A monosynaptic reflex arc is an example of a. a reverberating circuit. b. parallel processing. c. a converging circuit. d. serial processing.

d. serial processing.

This is the site of communication between neurons. a. terminal bouton b. axon c. cell body d. synapse e. dendrite

d. synapse

The _____ of a presynaptic neuron communicates with a dendrite of a postsynaptic neuron. a. cell body b. dendrite c. synapse d. terminal bouton e. axon

d. terminal bouton

Oligodendrocytes are similar to Schwann cells in that they: a. are located in the peripheral nervous system. b. help neurons regenerate after injury. c. conduct nerve impulses. d. are located in the central nervous system. e. are a type of neuroglial cell.

e. are a type of neuroglial cell.

Which glial cell is the most abundant in the central nervous system? a. microglia b. ependymal cell c. satellite cell d. Schwann cell e. astrocyte f. oligodendrocyte

e. astrocyte

This region of the neuron contains a single nucleus surrounded by cytoplasm. a. terminal bouton b. axon c. synapse d. dendrite e. cell body

e. cell body

These regions of a neuron are characterized by numerous, short cytoplasmic extensions and are often referred to as receiving regions. a. cell body b. terminal bouton c. synapse d. axon e. dendrite

e. dendrite

Which glial cell cell produces myelin in the peripheral nervous system.? a. ependymal cell b. microglia c. oligodendrocyte d. astrocyte e. satellite cell f. Schwann cell

f. Schwann cell

Which glial cell cells are phagocytes? a. satellite cell b. astrocyte c. Schwann cell d. ependymal cell e. oligodendrocyte f. microglia

f. microglia

Which glial cell cells surround sensory neuron cell bodies? a. ependymal cell b. Schwann cell c. astrocyte d. oligodendrocyte e. microglia f. satellite cell

f. satellite cell

Arrange the following connective tissue layers from superficial to deep. ____ endoneurium ____ perineurium ____ epineurium

3, 2, 1