Week 2 EDAPT BIO 252
Which division of the nervous system consists of all the nerves of the body?
Somatic
The autonomic division is another name for the visceral motor division of the peripheral
nervous system (PNS). What are the functions of this division?
Stimulating or inhibiting digestion
Accelerating or decreasing heartbeat
Controlling gland secretion
Which term describes all neurons that carry signals towards the CNS?
Afferent
The spinal cord and brain process information based on what?
past experiences
What are the nerves responsible for carrying signals away from the central nervous system
in order to initiate an action?
Efferent/Motor Neurons
a current of electricity that flows along dendrites or axons nerve impulse
The __________ division carries signals to the smooth muscle in the large intestine.
visceral mottor division
White Matter
consists of bundles of myelinated fibers
Gray Matter
consists of cell bodies and unmyelinated fibers
What is the material of white matter in the PNS? myelinated nerves
white matter in the CNS is made of?
myelinated tracts
Glands are _______.
effectors
Neurons are the __________ of the nervous system.
tissues
What are bundles of nerve fibers in the central nervous system (CNS) known as?
Tracts
In the nervous system, neurons are more abundant than neuroglia. True or False?
False
What is the connective tissue layer that covers each nerve fiber? Endoneurium
The main difference between neurons and neuroglia is that neurons are ______?
excitable
What is the layer of connective tissue that will surround each fascicle in the nerve?
Perineurium
Brain and spinal cord inner layer of protection?
Meninges
Brain and spinal cord outer layer of protection?
bone
, innermost layer of the meninges containing blood vessels, and attaches to the surface of
the brain and spinal.
Pia problem the outer layer and is composed of strong white fibrous tissue, and is also the
inner periosteum of the cranial bones.
Matter that lasts a spider web-like layer that is found between the middle between the dura
mater and the inner pia mater
Arachnoid matter
three membranes known as the meninges arranged in the following order from outer to
inner:
Dura matter, Arachnoid matter, and Pia matter
The two layers of the cranial dura mater are known as
an outer periosteal layer and an inner meningeal layer
Which layer is the one that continues and extends into the spinal cord?
meningeal layer
spaces which pick up blood that has circulated through the brain
dural sinuses
Some __________ neurons are specialized to detect stimuli, whereas __________ neurons
send signals to the effectors of the nervous system.
afferent; efferent
We have an expert-written solution to this problem!
The bony, protective layer of the spinal cord is the ______________?
vertebral column
creates a partition between the two cerebral hemispheres
Falx cerebri
separates the cerebellum from the cerebral
Tentorium cerebelli
separates the two halves of hemispheres of the cerebellum
Falx cerebelli
this layer is on the dura and in the spinal cord it contains a cushion of fat that provides
support
Epidural space
this is found beneath the dura in between the dura mater and the arachnoid mater, and it
contains small amounts of a serous fluid that acts as a lubricant
Subdural space
This space is found below the arachnoid, but it is above the pia, and this space contains the
CSF (Cerebrospinal fluid).
Subarachnoid space
Functions of the CSF
cushion of fluid around the brain and spinal cord; provides buoyancy for the brain, protects
against jolts, and provides chemical stability by monitoring changes in the internal chemical
environment, such as changes in CO2 levels.
The rate of production of CSF is of 0.2 - 0.7 ml per minute or 600-700 ml per day
The cranial dura mater consists of ____ layers
2
The spinal dura mater consists of _____ layer.
1
The majority of a myelin sheath's components are lipids
What is the primary site on a neuron for receiving signals from other neurons?
Which division of the nervous system consists of all the nerves of the body?
Somatic
The autonomic division is another name for the visceral motor division of the peripheral
nervous system (PNS). What are the functions of this division?
Stimulating or inhibiting digestion
Accelerating or decreasing heartbeat
Controlling gland secretion
Which term describes all neurons that carry signals towards the CNS?
Afferent
The spinal cord and brain process information based on what?
past experiences
What are the nerves responsible for carrying signals away from the central nervous system
in order to initiate an action?
Efferent/Motor Neurons
a current of electricity that flows along dendrites or axons nerve impulse
The __________ division carries signals to the smooth muscle in the large intestine.
visceral mottor division
White Matter
consists of bundles of myelinated fibers
Gray Matter
consists of cell bodies and unmyelinated fibers
What is the material of white matter in the PNS? myelinated nerves
white matter in the CNS is made of?
myelinated tracts
Glands are _______.
effectors
Neurons are the __________ of the nervous system.
tissues
What are bundles of nerve fibers in the central nervous system (CNS) known as?
Tracts
In the nervous system, neurons are more abundant than neuroglia. True or False?
False
What is the connective tissue layer that covers each nerve fiber? Endoneurium
The main difference between neurons and neuroglia is that neurons are ______?
excitable
What is the layer of connective tissue that will surround each fascicle in the nerve?
Perineurium
Brain and spinal cord inner layer of protection?
Meninges
Brain and spinal cord outer layer of protection?
bone
, innermost layer of the meninges containing blood vessels, and attaches to the surface of
the brain and spinal.
Pia problem the outer layer and is composed of strong white fibrous tissue, and is also the
inner periosteum of the cranial bones.
Matter that lasts a spider web-like layer that is found between the middle between the dura
mater and the inner pia mater
Arachnoid matter
three membranes known as the meninges arranged in the following order from outer to
inner:
Dura matter, Arachnoid matter, and Pia matter
The two layers of the cranial dura mater are known as
an outer periosteal layer and an inner meningeal layer
Which layer is the one that continues and extends into the spinal cord?
meningeal layer
spaces which pick up blood that has circulated through the brain
dural sinuses
Some __________ neurons are specialized to detect stimuli, whereas __________ neurons
send signals to the effectors of the nervous system.
afferent; efferent
We have an expert-written solution to this problem!
The bony, protective layer of the spinal cord is the ______________?
vertebral column
creates a partition between the two cerebral hemispheres
Falx cerebri
separates the cerebellum from the cerebral
Tentorium cerebelli
separates the two halves of hemispheres of the cerebellum
Falx cerebelli
this layer is on the dura and in the spinal cord it contains a cushion of fat that provides
support
Epidural space
this is found beneath the dura in between the dura mater and the arachnoid mater, and it
contains small amounts of a serous fluid that acts as a lubricant
Subdural space
This space is found below the arachnoid, but it is above the pia, and this space contains the
CSF (Cerebrospinal fluid).
Subarachnoid space
Functions of the CSF
cushion of fluid around the brain and spinal cord; provides buoyancy for the brain, protects
against jolts, and provides chemical stability by monitoring changes in the internal chemical
environment, such as changes in CO2 levels.
The rate of production of CSF is of 0.2 - 0.7 ml per minute or 600-700 ml per day
The cranial dura mater consists of ____ layers
2
The spinal dura mater consists of _____ layer.
1
The majority of a myelin sheath's components are lipids
What is the primary site on a neuron for receiving signals from other neurons?
