Sensory tracts of spinal cord
The _______ spinothalamic tract senses crude touch and pressure.
anterior
In the anterior spinothalamic tract the second neuron crosses over in the ________ commissure and goes to ________ on opposite side.
anterior, thalamus
Sensory tracts are _______, delivering info to the ______.
ascending, brain
All tracts are ______ symmetrical.
bilaterally
Axons are grouped based on their destination into _______ or _______.
bundles. tracts
In the anterior spinothalamic tract, the second neuron crosses over in the anterior ________ and goes to ________ on the opposite side.
commissure, thalamus
In the medial lemniscus, axons from sensory _______ nerves join the tract.
cranial
The fasciculus _______ transmits info coming from areas superior to T6.
cuneatus
Motor tracts are _______. delivering info to the _______.
descending, periphery
In first-order neurons, the cell body is in the ______ root ganglion.
dorsal
White matter in the spinal cord is organized into _____ and ______.
fasciculi, columns
The fasciculus _______ transmits info coming from areas inferior to T6.
fasciculus
In the anterior spinothalamic tract, the _______ first neuron from periphery goes to the same level as spinal segment's posterior grey horns.
first
In the anterior spinothalamic tract, the _______ neuron from periphery goes to the same level as spinal segment's posterior grey horns.
first
In the posterior column tracts the ________ neuron from periphery enters spinal cord on same level and goes to medulla on same side.
first
In the spinocerebellar tracts, the _______ neuron from periphery goes to same level as spinal segment's posterior grey horns.
first
The first synapse of the posterior column tracts is in the nucleus ________ or nucleus ________ of medulla oblongata.
gracilis, cuneatus
The two fasciculi of the posterior column are the fasciculus ________ and fasciculus _______.
gracilis, cuneatus
In spinocerebellar tracts, _______ cross over in the anterior commissure and ascend on opposite side.
half
In spinocerebellar tracts ______ of secondary neurons stay on the same side and ______ in posterior tracts.
half, ascend
Fibers that enter at a _____ level are more lateral within spinal cord.
higher
Sensory ________ is a pictorial representation of portion of the primary somatosensory cortex receiving sensory info from division of body.
homunculus
Posterior spinocerebellar tracts enter cerebellar cortex as ________.
inferior cerebellar peduncle
The _______ spinothalamic tract senses pain and temperature on the opposite side of the body.
lateral
The _______ spinothalamic tract senses pain and temperature.
lateral
The tract where the second neuron crosses over and goes to thalamus on the opposite side is the medial _________.
lemniscus
The _______-_______ rule states that fibers from lower levels of body travel more medially.
medial-lateral
Sensory ______ is a type of sensation such as pain and temperature.
modality
Brain and spinal cord both contain _______ with long ________ that pass info between them.
neurons, axons
In the posterior column tracts, if the damage occurs above medulla, the _______ side is affected.
opposite
The third neuron from thalamus to the primary sensory cortex of the cerebral hemisphere is on the ________ side than sensation.
opposite
First-order neurons is are _______ neurons that enters spinal cord.
peripheral
Sensory homunculus is a ________ representation of the portion of the primary ________ cortex receiving sensory info from division of body.
pictorial, somatosensory
In a second-order neuron, the synapse and cell body are in the ______ horns.
posterior
The ________ columns have sensory fibers carrying fine touch, pressure, and vibration.
posterior
In first-order neurons, the first synapse is in _______ horns or medulla _______.
posterior, oblongata
The ________ column tracts sense fine-touch, vibration, and proprioception on the _________ side of the body.
posterior, opposite
The three major sensory tracts are the _______ column tract, the ________ tract, and the _______ tract.
posterior, spinothalamic, spinocerebellar
In the posterior column tracts, if the damage occurs below medulla, the _______ side is affected.
same
In the spinocerebellar tracts, proprioception is on the ______ same side of the body or _______.
same, ipsilateral
A neuron from spinal cord to thalamus is a ______-order neuron.
second
______ and ______ axons do not mix but travel by _______ tracts within spinal cord.
sensory, motor, different
______ organization are tracts with ______ origins and destinations that go together.
somatotopic, simlar
In the anterior spinocerebellar tract, crossover occurs in the _______ cord at the level of entry.
spinal
In the anterior spinothalamic tract the crossover occurs in the ________ cord at the level of entry.
spinal
The crossover in the lateral spinothalamic tract occurs in the _______ cord at the level of entry.
spinal
Tracts that go up to the brain delivers info from ______ cord which means it is sensory.
spinal
All tracts involve ______ cord and _______.
spinal, brain
If the tract name ends with _____, the tract delivers info to the ______ cord which means it is motor.
spinal, spinal
If the tract name begins with ______, then it goes up to the brain.
spino
In the posterior _______ tract all of them will land up on the same side at the end.
spinocerebellar
The _______ tracts transmits proprioceptive info to the cerebellar cortex
spinocerebellar
The function of the anterior _______ tract is proprioception, or the awareness of the position of the body.
spinocerebellar
There is no crossover in the the posterior _________ tract.
spinocerebellar
The _______ tract transmits pain and temperature sensations to the thalamus and then cortex
spinothalamic
The anterior _______ tract have sensory fibers carrying crude touch.
spinothalamic
The anterior _______ tract senses crude touch and pressure sensations on opposite side of the body.
spinothalamic
The lateral _______ tract have sensory fibers carrying pain and temperature.
spinothalamic
To the cerebellum, sensation is only at the ______ level.
subconscious
Anterior spinocerebellar tracts cross over again within cerebellum and enter cerebellar cortex as ________.
superior cerebellar peduncle
In third-order neurons, the synapse and nuclei are in the ______.
thalamus
The second neuron of the posterior column tracts crosses over and goes to _________ on the opposite side.
thalamus
Third-order neurons transmit info from ______ to the ______ cortex.
thalamus, cerbral
The third neuron in the anterior spinothalamic tract starts in the _______ and goes to _______ in the opposite direction.
thalamus, cortex
The ______ neuron in the anterior spinothalamic tract starts in thalamus and goes to cortex on the opposite side.
third
The _______ neuron of the posterior column tracts goes from thalamus to the primary sensory cortex of the cerebral hemisphere.
third
Neurons in the sensory tracts are arranged according to ______ anatomical principles.
three
Sensory tracts involve _____ neurons.
three
Somatic sensory that go to cerebral cortex have ______ neurons.
three
______ are all axonal fibers going to the ______ destination and conducting the _____ info, and their associated ______.
tracts, same, same, nuclei
The posterior column tract has ______ fasciculi.
two
Somatic motor have ______ neurons and ______ synapse.
two, one
Each tract contains _____ fiber and ______ cell bodies.
white, grey
