ZOOL 2403 LECTURE EXAM 2- DR. BOROS TTU QUESTIONS AND
CORRECT ANSWERS 100% VERIFIED!!
Root is to ____ as ganglion is to ___ - (answer)axons; cell bodies
ventral is to ____ as dorsal is to _____ - (answer)motor; sensory
white matter is to ____ as gray matter is to ____ - (answer)axons; cell bodies
Spinal Meninges (three layers) - (answer)dura mater, arachnoid mater, pia mater
Spinal Meninges functions - (answer)protect spinal cord and provide it with oxygen and nurtrients
where is CSF - (answer)in subarachnoid space (between arachnoid and pia mater)
CSF provides spinal cord with: - (answer)physical and chemical protection
As you go down the spinal cord, the ____ white matter - (answer)less
conus medullaris - (answer)caudal end of spinal cord; CNS
cauda equina - (answer)spinal nerves inferior to conus medullaris; only contains axons; PNS
divisions of spinal cord (CNS) - (answer)gray matter and white matter
Gray Matter - (answer)composed of neuron cell bodies
dorsal gray matter - (answer)cell bodies of sensory neurons receive and sum signals from PNS sensory
neurons
,ZOOL 2403 LECTURE EXAM 2- DR. BOROS TTU QUESTIONS AND
CORRECT ANSWERS 100% VERIFIED!!
ventral gray matter - (answer)cell bodies of motor neurons receive and sum signals from brain motor
neurons
white matter - (answer)contains ascending and descending fiber (AXON) pathways
ascending pathways - (answer)relays sensory info from spinal cord to brain
descending pathways - (answer)relays motor info from brain to spinal cord
spinal nerve divisions - (answer)dorsal root and ventral root
dorsal root - (answer)contains axons
cell bodies in dorsal root ganglion
carry sensory info from peripheral receptors to spinal cord
ventral root - (answer)contains axons
cell bodies are in spinal cord
carry motor info from spinal cord to muscles
spinal nerves travel through ____ - (answer)intervertebral foramen
spinal nerves are surrounded by ____ - (answer)connective tissue wrappings
epineurium - (answer)outermost layer; surrounds entire spinal nerve; dense irregular CT
perineurium - (answer)wraps axons into fasicles; dense irregular CT
, ZOOL 2403 LECTURE EXAM 2- DR. BOROS TTU QUESTIONS AND
CORRECT ANSWERS 100% VERIFIED!!
endoneurium - (answer)surround Shwann cell; loose CT
lesion of spinal nerve= ____ nerves affected - (answer)sensory and motor
lesion of dorsal root=___ axons affected - (answer)sensory
lesion of ventral root= ___ axons affected - (answer)motor
intercostal nerves innervate: - (answer)muscles of trunk
skin of trunk
spinal nerve plexus innervates - (answer)muscles of neck and limbs
skin of neck and limbs
cervical plexus innervates - (answer)muscles and skin of neck
brachial plexus innervates - (answer)muscles and skin of pectoral girdle and upper limbs
lumbrosacral plexus innervates - (answer)muscles and skin of pelvic girdle and lower limbs
musculocutaneous nerve innervation - (answer)muscles of all anterior forearm--flexor
skin of anterior forearm
median nerve innervates - (answer)most muscles of anterior forearm--flexor
skin of hand
CORRECT ANSWERS 100% VERIFIED!!
Root is to ____ as ganglion is to ___ - (answer)axons; cell bodies
ventral is to ____ as dorsal is to _____ - (answer)motor; sensory
white matter is to ____ as gray matter is to ____ - (answer)axons; cell bodies
Spinal Meninges (three layers) - (answer)dura mater, arachnoid mater, pia mater
Spinal Meninges functions - (answer)protect spinal cord and provide it with oxygen and nurtrients
where is CSF - (answer)in subarachnoid space (between arachnoid and pia mater)
CSF provides spinal cord with: - (answer)physical and chemical protection
As you go down the spinal cord, the ____ white matter - (answer)less
conus medullaris - (answer)caudal end of spinal cord; CNS
cauda equina - (answer)spinal nerves inferior to conus medullaris; only contains axons; PNS
divisions of spinal cord (CNS) - (answer)gray matter and white matter
Gray Matter - (answer)composed of neuron cell bodies
dorsal gray matter - (answer)cell bodies of sensory neurons receive and sum signals from PNS sensory
neurons
,ZOOL 2403 LECTURE EXAM 2- DR. BOROS TTU QUESTIONS AND
CORRECT ANSWERS 100% VERIFIED!!
ventral gray matter - (answer)cell bodies of motor neurons receive and sum signals from brain motor
neurons
white matter - (answer)contains ascending and descending fiber (AXON) pathways
ascending pathways - (answer)relays sensory info from spinal cord to brain
descending pathways - (answer)relays motor info from brain to spinal cord
spinal nerve divisions - (answer)dorsal root and ventral root
dorsal root - (answer)contains axons
cell bodies in dorsal root ganglion
carry sensory info from peripheral receptors to spinal cord
ventral root - (answer)contains axons
cell bodies are in spinal cord
carry motor info from spinal cord to muscles
spinal nerves travel through ____ - (answer)intervertebral foramen
spinal nerves are surrounded by ____ - (answer)connective tissue wrappings
epineurium - (answer)outermost layer; surrounds entire spinal nerve; dense irregular CT
perineurium - (answer)wraps axons into fasicles; dense irregular CT
, ZOOL 2403 LECTURE EXAM 2- DR. BOROS TTU QUESTIONS AND
CORRECT ANSWERS 100% VERIFIED!!
endoneurium - (answer)surround Shwann cell; loose CT
lesion of spinal nerve= ____ nerves affected - (answer)sensory and motor
lesion of dorsal root=___ axons affected - (answer)sensory
lesion of ventral root= ___ axons affected - (answer)motor
intercostal nerves innervate: - (answer)muscles of trunk
skin of trunk
spinal nerve plexus innervates - (answer)muscles of neck and limbs
skin of neck and limbs
cervical plexus innervates - (answer)muscles and skin of neck
brachial plexus innervates - (answer)muscles and skin of pectoral girdle and upper limbs
lumbrosacral plexus innervates - (answer)muscles and skin of pelvic girdle and lower limbs
musculocutaneous nerve innervation - (answer)muscles of all anterior forearm--flexor
skin of anterior forearm
median nerve innervates - (answer)most muscles of anterior forearm--flexor
skin of hand
