Spinal Cord Anatomy

Question 1

The ascending gracile and cuneate fasciculi occupying the dorsal column, and sometimes are named the dorsal funiculus. These fibers carry information related to

Answer 1

tactile, two point discrimination of simultaneously applied pressure, vibration, position, and movement sense and conscious proprioception

Question 2

In the lateral column (funiculus), the neospinothalamic tract (or lateral spinothalamic tract) is located more anteriorly and laterally, and carries

Answer 2

pain, temperature and crude touch information from somatic and visceral structures.

Question 3

The dorsal and ventral spinocerebellar tracts carry

Answer 3

unconscious proprioception information from muscles and joints of the lower extremity to the cerebellum.

Question 4

The ventral column (funiculus) there are four prominent tracts:

Answer 4

1) the paleospinothalamic tract (or anterior spinothalamic tract)
2) the spinoolivary tract
3) the spinoreticular tract
4) the spino-tectal tract.

Question 5

The paleospinothalamic tract (or anterior spinothalamic tract) is located which carry

Answer 5

pain, temperature, and information associated with touch to the brain stem nuclei and to the diencephalon

Question 6

The spinoolivary tract carries

Answer 6

information from Golgi tendon organs to the cerebellum

Question 7

Intersegmental nerve fibers

Answer 7

traveling for several segments (2 to 4) and are located as a thin layer around the gray matter is known as fasciculus proprius, spinospinal or archispinothalamic tract. It carries pain information to the brain stem and diencephalon.

Question 8

The descending tracts originate from

Answer 8

different cortical areas and from brain stem nuclei

Question 9

Descending pathway carry information associated with

Answer 9

maintenance of motor activities such as posture, balance, muscle tone, and visceral and somatic reflex activity. These include the lateral corticospinal tract and the rubrospinal tracts located in the lateral column (funiculus).

Question 10

Lateral corticospinal tract and the rubrospinal tracts located in the lateral column (funiculus). carry

Answer 10

information associated with voluntary movement.

Question 11

Lissauer’s tract

Answer 11

wedged between the dorsal horn and the surface of the spinal cord carry the descending fibers of the dorsolateral funiculus (DFL), which regulate incoming pain sensation at the spinal level, and intersegmental fibers.

Question 12

Dorsal column-medial lemniscus tract

Answer 12

carries fine (or light) touch fibers, conscious proprioception, vibration, pressure and 2-point discrimination,

Question 13

Corticospinal tract

Answer 13

carries motor fibers.

Question 14

sPinoThalamic Tract of the Anterolateral System

Answer 14

pain and temperature sensation and crude touch

Question 15

What are the main parts of the central nervous system?

spinal cord and brain
brain and cranial nerves
spinal nerves and spinal cord.
brain and vagus nerve

Answer 15

spinal cord and brain

Question 16

The _________________ serves as a protective filter that regulates the entrance of certain substances into the brain from the bloodstream.

meninges
gray matter
white matter
blood-brain barrier

Answer 16

meninges

Question 17

Repetitive movement patterns, such as riding a bike, playing a musical instrument, or typing, are stored within the _________________.

motor cortex
primary somatosensory area
premotor cortex
prefrontal cortex

Answer 17

premotor cortex

Question 18

Cerebrospinal fluid functions to ___________ the brain.

cushion
support
nourish
all of the above

Answer 18

all of the above

Question 19

Which part of the brain is most important to your recall of information for success on this test?

medulla
cerebellum
cerebrum
thalamus

Answer 19

cerebrum

Question 20

What is the primary function of the cerebellum?

coordination of endocrine and nervous responses
coordination of complex muscular movements
center of consciousness
control of digestion, circulation, and breathing movements

Answer 20

coordination of complex muscular movements

Question 21

You just finished running and your heart rate is fast as is your breathing. The part of the brain controlling basic body functions such as heart rate and blood pressure is the _______.

spinal cord
cerebral cortex
medulla oblongata
cerebellum

Answer 21

medulla oblongata

Question 22

The thalamus is responsible for which of the following functions?

connection between speech and hearing
motor coordination
control of many of the endocrine glands
integration and relay of information

Answer 22

integration and relay of information

Question 23

A major portion of the motor area of the brain is devoted to the __________.

senses
foot and toes
hand and fingers
all of the above have equal area

Answer 23

hand and fingers

Question 24

As Tonya read the obituary of her neighbor, she felt sad. What system is considered our emotional brain?

reticular activating system
frontal lobes
central nervous system
limbic system

Answer 24

limbic system

Question 25

Joseph’s heart was racing as he read the concluding chapter to a mystery. What controlled the physiological response to his emotions?

hypothalamus
reticular activating system
cerebral cortex
thalamus

Answer 25

hypothalamus

Question 26

What part of our brain takes the information you just heard in lecture and converts it from short-term memory to long-term memory?

thalamus
corpus callosum
hypothalamus
hippocampus

Answer 26

hippocampus

Question 27

What area of the brain filters sensory information and helps to keep us alert?

hippocampus
medulla
cerebral cortex
reticular activating system

Answer 27

reticular activating system

Question 28

The spinal cord is similar to the brain in all of the following ways EXCEPT one. In which way are they different?

protected by bone
contains both gray and white matter
controls motor responses
controls thinking

Answer 28

controls thinking

Question 29

The primary functions of the spinal cord involve __________.

controlling muscle activity and maintaining balance
intelligence and memory
reflex actions and communication between the brain and spinal nerves
speech, smell, taste, hearing and vision

Answer 29

reflex actions and communication between the brain and spinal nerves

Question 30

What is the primary advantage to a spinal reflex?

It is very fast.
It depends upon the decision-making abilities of the brain.
It efficiently controls regions farthest from the brain.
It involves both gray and white matter.

Answer 30

It is very fast.

Question 31

Spinal nerves are able to carry which of the following types of information?

both motor and sensory
motor only
intelligence carried in the interneurons
sensory only

Answer 31

both motor and sensory

Question 32

The reaction of the body to an emergency is controlled by the _________ nervous system.

parasympathetic
somatic
sympathetic
central

Answer 32

sympathetic

Question 33

What is the cause of the most common type of headache?

tension in the muscles of the face, head, and neck
usual brain chemistry imbalances
constricted cranial vessels
bright lights

Answer 33

tension in the muscles of the face, head, and neck

Question 34

Which of the following might be the result of a spinal injury, such as that from a diving accident?

coma
aneurism
paralysis
stroke

Answer 34

paralysis