| Central Nervous System | How do nerves work? | Nervous Conditions | Neurons, Nerves and Such | Nerves and Messages |
| 10 | 10 | 10 | 10 | 10 |
| 20 | 20 | 20 | 20 | 20 |
| 30 | 30 | 30 | 30 | 30 |
| 40 | 40 | 40 | 40 | 40 |
| 50 | 50 | 50 | 50 | 50 |
| Final Question | ||||
The central nervous system consists of what two structures?
The central nervous system consists of what two structures?
brain and spinal cord
Astrocytes, oiligodendrocytes, microglia and ependymal cells are all types of ___________ in the CNS.
Astrocytes, oiligodendrocytes, microglia and ependymal cells are all types of ___________ in the CNS.
neuroglia cells
A histological examination of the brain during an autopsy reveals an extremely high number of microglial cells in an area that had suffered recent trauma? What do these cells signify?
A histological examination of the brain during an autopsy reveals an extremely high number of microglial cells in an area that had suffered recent trauma? What do these cells signify?
phagocytic activity to remove dead cells and infectious organisms present
Gaps in myelin sheath are called.
Gaps in myelin sheath are called.
Nodes of Ranvier
In the spinal cord, where do we find CSF?
In the spinal cord, where do we find CSF?
central canal and subarachnoid space
What are the two divisions of the PNS?
What are the two divisions of the PNS?
autonomic and somatic
Motor neurons of the efferent division of the PNS carry _____________.
Motor neurons of the efferent division of the PNS carry _____________.
instructions from the CNS to muscles, glands, and adipose tissue
A child is brought to the clinic with a high temperature. The doctor states that the child's meninges are inflamed. What is the probable cause?
A child is brought to the clinic with a high temperature. The doctor states that the child's meninges are inflamed. What is the probable cause?
spinal meningitis
Interconnecting neurons and communication between cerebral hemispheres occurs through what structure?
Interconnecting neurons and communication between cerebral hemispheres occurs through what structure?
corpus callosum
An involuntary muscular contraction in response to a stimulus is known as _________.
An involuntary muscular contraction in response to a stimulus is known as _________.
reflex
Following a train accident a woman with an obvious head injury, is observed stumbling abou the scene. An inability to walk properly and loss of balance are obvious. Which region of the brain was injured?
Following a train accident a woman with an obvious head injury, is observed stumbling abou the scene. An inability to walk properly and loss of balance are obvious. Which region of the brain was injured?
cerebellum
This neurotransmitter is also a hormone. In the PNS it plays a role in the 'fight or flight' response.
This neurotransmitter is also a hormone. In the PNS it plays a role in the 'fight or flight' response.
nerepinephrine
This neurotransmitter produces a feeling of euphoria.
This neurotransmitter produces a feeling of euphoria.
dopamine
The outer most layer of the meninges
The outer most layer of the meninges
dura mater
Voluntary control of skeletal muscles is provided by the ____________.
Voluntary control of skeletal muscles is provided by the ____________.
somatic nercous system
Neurons are classified on the basis of their function as
Neurons are classified on the basis of their function as
motor, sensory, and association
Nerve impulses start at the dendrite then travels through the cell body to the ___________.
Nerve impulses start at the dendrite then travels through the cell body to the ___________.
axon
What are the primary functions of the nervous system.
What are the primary functions of the nervous system.
monitoring internal and external environments; integrating sensory information; coordinating voluntary and involuntary responses
The membranes located between bone and the soft tissue of the nervous system.
The membranes located between bone and the soft tissue of the nervous system.
meninges
Neurons are classified on the basis of their structure as ____________.
Neurons are classified on the basis of their structure as ____________.
unipolar, bipolar, multipolar
A part of a synapse where intercellular communications between neurons occur.
A part of a synapse where intercellular communications between neurons occur.
synaptic terminal
A simple nerve pathway that would be involved with involuntary actions.
A simple nerve pathway that would be involved with involuntary actions.
reflex arc
The autonomic nervous system is divided into what two divisions?
The autonomic nervous system is divided into what two divisions?
sympathetic and parasympathetic
Nerves of the ______________ nervous system receive and process sensory input from the skin, muscles, tendons, joints, eyes, etc.
Nerves of the ______________ nervous system receive and process sensory input from the skin, muscles, tendons, joints, eyes, etc.
somatic
Nerves of the _______________ nervous system carry impulses from the CNS to glands, various smooth muscles, cardiac muscle and various membranes.
Nerves of the _______________ nervous system carry impulses from the CNS to glands, various smooth muscles, cardiac muscle and various membranes.
autonomic
Describe the cause of Myesthenia gravis.
Describe the cause of Myesthenia gravis.
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