Pyramidal System

Question 1

Location of lower motor neuron (LMN)

Answer 1

spinal cord and brainstem

Question 2

3 areas of upper motor cortex

Answer 2

Area 4, area 6, area 8

Question 3

The part of the brain that controls voluntary movements

Answer 3

Pyramidal system

Question 4

In what part of the spinal cord does the LMN resides?

Answer 4

Anterior horn

Question 5

Why does brainstem included in the location of LMN?

Answer 5

Because motor nuclei of cranial nerves are located at the brainstem

Question 6

What is almost synonymous to pyramidal system?

Answer 6

Motor cortex

Question 7

What will happen if motor cortex is diseased?

Answer 7

Paralysis or paresis

Question 8

Where does fine, skilled, non-stereotype motor movements reside?

Answer 8

• fingers
• muscles for speech
• intrinsic muscles of the hand

Question 9

Parts of the brain that is involve in the collaboration of the motor system

Answer 9

• basal ganglia
• cerebellum
• superior colliculus
• reticular formation
• red nucleus
• vestibular nuclei
• thalamus
• pons

Question 10

It is the direct connection of motor cortex to basal ganglia

Answer 10

Cortico-striae fibers

Question 11

It is the indirect connection of motor cortex to basal ganglia

Answer 11

Thalamo striae fibers

Question 12

May connect first to the pons by means of PONTO-CEREBELLAR FIBERS

Answer 12

Motor cortex to cerebellum

Question 13

Has a rich connection to the vestibular nuclei

Answer 13

Cerebellum

Question 14

What is the tract the starts from the motor cortex to red nucleus?

Answer 14

Corticorubral tract

Question 15

What is the tract the starts from the motor cortex to reticular formation?

Answer 15

Cortico-reticular

Question 16

What is the tract the starts from the motor cortex to superior colliculus?

Answer 16

Corticotectal

Question 17

It is the final, bottle-beck or destination of all the influences of these motor centers

Answer 17

LOWER MOTOR NEURON

Question 18

Give the connections to the lower motor neuron

Answer 18

• Two vestibule-spinal tract
• rubro-spinal tract
• two reticulospinal tract
• tecto-spinal tract

Question 19

How can basal ganglia reciprocate to motor cortex?

Answer 19

Via thalamo-cortical radiations

Question 20

Arises from the motor cortex then projects to the motor nuclei of the cranial nerves in the brainstem

Answer 20

Corticobulbar fibers

Question 21

Synonymous to GSE

Answer 21

LMN

Question 22

Neurons located in the motor cortex whose axons form the pyramidal tract

Answer 22

Upper motor neuron

Question 23

Neuron of the anterior horn of the spinal cord or the motor nuclei of the spinal nerves whose axons will synapse from peripheral nerves to skeletal muscle

Answer 23

Lower motor neuron

Question 24

Area that can also be included in the pyramidal system but will not terminate in LMN

Answer 24

Are 3,1,2

Question 25

Precentral gyrus

Answer 25

Area 4 or. Motor humunculus