E3 Flashcards
The spinal cord is part of the ________ nervous system
A) peripheral
B) somatic
C) central
D) autonomic
E) afferent
Central
The adult spinal cord typically ends between vertebrae ____
A) T12-L1.
B) S4-S5.
C) L5-S1.
D) L1-L2.
E) S5-Co1
L1-L2
Arrange the spinal meninges from innermost layer to outermost layer.
A) dura mater, arachnoid mater, pia mater
B) dura mater, pia mater, arachnoid mater
C) arachnoid mater, pia mater, dura mater
D) pia mater, dura mater, arachnoid mater
E) pia mater, arachnoid mater, dura mater
pia mater, arachnoid mater, dura mater
Enlarged area of the spinal cord from which nerves to the shoulder and upper limbs arise.
A) cervical enlargement
B) lumbar enlargement
C) thoracic region
D) conus medullaris
E) sacral region
cervical enlargement
These structures extending from the pia mater through to the dura mater support the spinal cord by preventing lateral movement.
A) coccygeal ligament
B) rami communicantes
C) cauda equina
D) denticulate ligaments
E) spinal ligaments
denticulate ligaments
The conus medullaris anchors the spinal cord to the coccygeal ligament via a strand of fibrous tissue called the _____
A) denticulate ligament.
B) filum terminale.
C) spinal ligament.
D) meningeal ligament.
E) dura mater.
filum terminale
Spinal nerves are ____
A) purely sensory.
B) purely motor.
C) both sensory and motor.
D) interneuronal.
E) involuntary.
both sensory and motor
The spinal cord consists of four regions and ________ pairs of spinal nerves
A) five
B) twelve
C) twenty-five
D) thirty-one
E) The number varies widely among individuals.
thirty-one
The posterior root ganglia mainly contain _____
A) axons of motor neurons.
B) axons of sensory neurons.
C) cell bodies of motor neurons.
D) cell bodies of sensory neurons.
E) synapses.
cell bodies of sensory neurons
The posterior root of a spinal nerve contains _____
A) axons of motor neurons.
B) axons of sensory neurons.
C) cell bodies of motor neurons.
D) cell bodies of sensory neurons.
E) interneurons.
axons of sensory neurons
The anterior root of a spinal nerve contains _____
A) axons of motor neurons.
B) axons of sensory neurons.
C) cell bodies of motor neurons.
D) cell bodies of sensory neurons.
E) interneurons.
axons of motor neurons
The tough, fibrous, outermost covering of the spinal cord is the ____
A) arachnoid mater.
B) pia mater.
C) dura mater.
D) coccygeal ligament.
E) periosteum.
dura mater
If the posterior root of a spinal nerve is severed, ____
A) output to skeletal muscles would be blocked.
B) output to visceral organs would be blocked.
C) efferent fibers would be blocked.
D) the brain would not be able to communicate with that level of the spinal cord.
E) sensory input would be blocked.
sensory input would be blocked
The subdural space lies between _____
A) the arachnoid mater and the pia mater.
B) the pia mater and the dura mater.
C) the dura mater and the arachnoid mater.
D) the pia mater and the subarachnoid space.
E) the endosteum and the periosteum.
the dura mater and the arachnoid mater
The layer of the meninges in direct contact with the spinal cord is the _______
A) dura mater.
B) subarachnoid space.
C) arachnoid mater.
D) pia mater.
E) choroid plexus.
pia mater
A posterior and anterior root of each spinal segment unite to form a _____
A) cervical enlargement.
B) lumbar enlargement.
C) spinal nerve.
D) denticulate ligament.
E) spinal ganglion.
spinal nerve
Which of the following is not true of meningitis?
A) Inflammation of the meninges occurs.
B) Bacteria can be the cause.
C) Viruses can be the cause.
D) CSF flow can be disrupted.
E) It only affects spinal meninges.
It only affects spinal meninges
Which of the following is not true regarding an epidural block?
A) It is commonly used as a method of pain control during labor and delivery.
B) This procedure does not provide sustained anesthesia.
C) It can provide sensory and motor anesthesia, depending on the anesthetic selected.
D) Intubation is not necessary because respiratory muscles are not paralyzed.
E) It affects only the spinal nerves in the immediate area of the injection.
This procedure does not provide sustained anesthesia
Cerebrospinal fluid flows within the______
A) filum terminale.
B) subarachnoid space.
C) dura mater.
D) pia mater.
E) arachnoid mater.
subarachnoid space
The spinal cord continues to elongate until about age ______
A) 20 years.
B) 10 years.
C) 4 years.
D) 6 months.
E) 2 months.
4 years
The specialized membranes that surround the spinal cord are termed the ______
A) cranial meninges.
B) cranial mater.
C) spinal meninges.
D) spinal mater.
E) epidural membranes.
spinal meninges
Blood vessels that supply the spinal cord run along the surface of the ______
A) pia mater.
B) dura mater.
C) epidural space.
D) subdural space.
E) arachnoid mater.
pia mater
Samples of CSF for diagnostic purposes are normally obtained by placing the tip of a needle in the ____
A) dura mater.
B) arachnoid mater.
C) epidural space.
D) subarachnoid space.
E) cerebral ventricles.
subarachnoid space
In an adult, the conus medullaris is found at about _____
A) T6.
B) T10.
C) L1.
D) L5.
E) C8.
L1