Biology 2401: AP1 Exam 5 Questions
& Answers Rated A+.
Neurons - Answer (1) These nervous system cells are highly specialized to transmit messages
throughout the body
Astrocytes and Ependymal cells - Answer (2)These support cells are found in the CNS
rough ER - Answer (3)Chromatophilic substance, found within the cell bodies of neurons, is
involved in the metabolic activities of the cell and is composed of ______.
Schwann cells - Answer (4) The formation of myelin in the peripheral nervous system is
accomplished by these cells.
Nodes of Ranvier - Answer (6) The gaps in the sheath that insulates axons are called
_________________..
Weather the signal traveling toward or away from the CNS - Answer (7)Functional
classification of neurons is based on__________?
unipolar - Answer (8) Sensory or afferent neurons are typically of this type
consists of axons wrapped in connective tissue in the PNS - Answer (9)A nerve_____
tract - Answer (10) A bundle of axons in the CNS is called a ________.
It contains both afferent and efferent axons. - Answer 11) What is true of a mixed nerve?
Perineurium - Answer (12 Tissue surrounding a group of axons(fascicles) within a nerve
ganglion - Answer (13)A cluster of neurons in the peripheral nervous system is called a _____.
Several Axons in the CNS - Answer (14)Oligodendrocytes form myelin around___
neurotransmitters - Answer (15)Vesicles in the axon terminal contain _____.
, Afferent neuron - Answer 16) You have lost the sensation, but not movement, in one of your
hands due to a problem. What type of neuron was most likely affected?
Multipolar - Answer (17) Interneurons are likely to be
Tracks lack connective tissue coverings surroundings - Answer (18) What is true about tracts
and nerves?
Epineurium - Answer (19) The outermost connective tissue covering of a nerve is called the
___________
motor neurons - Answer (20) These neurons transmit from CNS to effectors
sensory neurons - Answer (21) Cell bodies of these neurons lie in ganglia in the peripheral
nervous system (PNS)
What is true about tracts and nerves - Answer Nerves are found in both the CNS and the PNS
astrocytes - Answer (22)These glial cells play a role in capillary-neuron exchanges and control
the chemical environment around neurons.
Ependymal cells - Answer (23) These glial cells line cerebrospinal fluid-filled cavities in the
CNS
The resting membrane potential - Answer (24) When a neuron is at rest, there is a charge
separation
(voltage) across the plasma membrane called ________________________.
a rapid depolarization and repolarization of the cell membrane that is propagated - Answer
(25) An action potential is _____.
threshold - Answer (26) If a stimulus to a neuron is great enough, ____________ is reached
and an action potential is generated.
become more positive - Answer (27) During depolarization, the membrane potential
is______.
K+ - Answer (28) Net movement of this ion is primarily associated with repolarization
& Answers Rated A+.
Neurons - Answer (1) These nervous system cells are highly specialized to transmit messages
throughout the body
Astrocytes and Ependymal cells - Answer (2)These support cells are found in the CNS
rough ER - Answer (3)Chromatophilic substance, found within the cell bodies of neurons, is
involved in the metabolic activities of the cell and is composed of ______.
Schwann cells - Answer (4) The formation of myelin in the peripheral nervous system is
accomplished by these cells.
Nodes of Ranvier - Answer (6) The gaps in the sheath that insulates axons are called
_________________..
Weather the signal traveling toward or away from the CNS - Answer (7)Functional
classification of neurons is based on__________?
unipolar - Answer (8) Sensory or afferent neurons are typically of this type
consists of axons wrapped in connective tissue in the PNS - Answer (9)A nerve_____
tract - Answer (10) A bundle of axons in the CNS is called a ________.
It contains both afferent and efferent axons. - Answer 11) What is true of a mixed nerve?
Perineurium - Answer (12 Tissue surrounding a group of axons(fascicles) within a nerve
ganglion - Answer (13)A cluster of neurons in the peripheral nervous system is called a _____.
Several Axons in the CNS - Answer (14)Oligodendrocytes form myelin around___
neurotransmitters - Answer (15)Vesicles in the axon terminal contain _____.
, Afferent neuron - Answer 16) You have lost the sensation, but not movement, in one of your
hands due to a problem. What type of neuron was most likely affected?
Multipolar - Answer (17) Interneurons are likely to be
Tracks lack connective tissue coverings surroundings - Answer (18) What is true about tracts
and nerves?
Epineurium - Answer (19) The outermost connective tissue covering of a nerve is called the
___________
motor neurons - Answer (20) These neurons transmit from CNS to effectors
sensory neurons - Answer (21) Cell bodies of these neurons lie in ganglia in the peripheral
nervous system (PNS)
What is true about tracts and nerves - Answer Nerves are found in both the CNS and the PNS
astrocytes - Answer (22)These glial cells play a role in capillary-neuron exchanges and control
the chemical environment around neurons.
Ependymal cells - Answer (23) These glial cells line cerebrospinal fluid-filled cavities in the
CNS
The resting membrane potential - Answer (24) When a neuron is at rest, there is a charge
separation
(voltage) across the plasma membrane called ________________________.
a rapid depolarization and repolarization of the cell membrane that is propagated - Answer
(25) An action potential is _____.
threshold - Answer (26) If a stimulus to a neuron is great enough, ____________ is reached
and an action potential is generated.
become more positive - Answer (27) During depolarization, the membrane potential
is______.
K+ - Answer (28) Net movement of this ion is primarily associated with repolarization
