Term
|
Definition
Glial cell that forms a structural and fucntional link between neurons and non-nervous tissue and extracellular fluid.
Support the blood-brain barrier |
|
|
Term
|
Definition
Glial cell that protects the central nervous system from foreign matter.
Protects neurons against oxidative-stress. |
|
|
Term
| What are the two outermost structures that protect soft tissues of the CNS? |
|
Definition
Cranium (Surrounds the brain)
Vertebral column (surrounds the spinal cord) |
|
|
Term
|
Definition
| Connective tissue membranes that protect the soft tissue of the CNS from the surrounding bone. |
|
|
Term
|
Definition
| Outermost layer of the meninges, closest to the bone |
|
|
Term
|
Definition
| The middle layer of the meninges |
|
|
Term
|
Definition
| The innermost layer of the meninges |
|
|
Term
|
Definition
| Space between the arachnoid mater and the pia mater that is filled with CSF |
|
|
Term
|
Definition
| The brain's four cavities |
|
|
Term
|
Definition
| A physical barrier that exists between the blood and the CSF |
|
|
Term
|
Definition
Constitutes 40% of the CNS
Site of synaptic communication and neural integration |
|
|
Term
|
Definition
Constitutes 60% of the CNS
Contains myelinated axons |
|
|
Term
|
Definition
Cylinder of nervous tissue that is continuous with the brain and surrounded by the vertebral column
Extends 2/3's the spinal column's length |
|
|
Term
|
Definition
Emcompasses the dorsal half of the gray matter
Serves as the connection site for afferent fibers which originate in the periphery. |
|
|
Term
|
Definition
| Automatic patterned response to a sensory stimulus |
|
|
Term
|
Definition
Neural pathway for a reflex consisting of:
1. sensory receptor
2. afferent neuron
3. Integration center
4. Efferent neuron
5. Effector organ |
|
|
Term
| Muscle spindle stretch reflex |
|
Definition
Only monosynaptic reflex in the human body.
Receptor is a muscle spindle that detects the lengthening of the muscle. |
|
|
Term
|
Definition
| A response in which the body withdraws from a painful stimulus |
|
|
Term
|
Definition
| Receptors that respond to intense stimuli that are damaging to tissue |
|
|
Term
|
Definition
A reflex that is initiated simultaneously along with the withdrawal reflex.
Afferent neurons from nociceptors have branches that send signals to efferent neurons controlling muscles on the opposite leg |
|
|
Term
|
Definition
| Efferent neurons that originate in the ventral horn of the spinal cord and control skeletal muscles |
|
|
