Chapter 17: Pathways

Question 1

Two main pathways

Answer 1

Motor and sensory

Question 2

What type of control do sensory and motor have?

Answer 2

Contralateral, opposite side

Question 3

Detects touch, temp, pain, proprioception

Answer 3

Somatosensory

Question 4

Fine touch afferent pathway

Answer 4

Posterior funiculus- Medial lemniscal pathway (Dorsal columnar pathway)

Question 5

Dorsal columnar pathway (4)

Answer 5

1. Enters spinal cord, ascends in dorsal columns
2. Dorsal columns to medulla
3. Medulla to thalamus
4. Thalamus to primary somatosensory cortex on parietal lobe

Question 6

Temp and pain afferent pathway

Answer 6

Anterolateral (Spinothalamic)

Question 7

Spinothalamic pathway (3)

Answer 7

1. Enters dorsal horn
2. Dorsal horn to thalamus
3. Thalamus to primary somatosensory cortex

Question 8

Proprioception afferent pathway

Answer 8

Spinocerebellar

Question 9

Spinocerebellar pathway

Answer 9

Projects to cerebellum

Question 10

Voluntary movement efferent pathway

Answer 10

Direct (pyramidal)

Question 11

What does the direct corticospinal path control?

Answer 11

Body, voluntary movement

Question 12

What does the direct corticobulbar/corticonucleur) path control?

Answer 12

Face voluntary movements

Question 13

Direct efferent pathway

Answer 13

Primary motor cortex to spinal cord (corticospinal) or cranial nerves (corticobulbar)

Question 14

Involuntary motor pathway

Answer 14

Indirect pathway

Question 15

Where do indirect pathways arise from?

Answer 15

The brainstem

Question 16

What pathway is voluntary skilled movement?

Answer 16

Lateral path

Question 17

What is the pathway for the lateral path?

Answer 17

Rubrospinal pathway

Question 18

What are the three medial paths?

Answer 18

1. Reticulospinal pathway
2. Vestibulospinal
3. Tectospinal

Question 19

Role of reticulospinal path

Answer 19

Set/control posture

Question 20

Role of vestibulospinal pathway

Answer 20

Adjust posture to maintain balance

Question 21

Role of tectospinal pathway

Answer 21

Adjust posture based on visual info

Question 22

Two crucial structures in controlling movement

Answer 22

Basal ganglia and cerebellum

Question 23

Structure that initiates movement

Answer 23

Basal ganglia

Question 24

Structure for fine motor control, planning, programming, timing and sequence, adjustments

Answer 24

Cerebellum

Question 25

Role of prefrontal cortex

Answer 25

Idea to move

Question 26

What hemisphere is speech located in?

Answer 26

Left

Question 26

Hemisphere for categorical, speech, analytical, science and math

Answer 26

Left

Question 27

What connects hemispheres

Answer 27

Corpus callosum

Question 28

Hemisphere for representation, visuospatial, artistic

Answer 28

Right hemisphere

Question 29

Structure that identified language, assigns meaning, generates response "Understanding"

Answer 29

Wernicke's area

Question 30

Motor speech area, generates motor plan for primary motor cortex

Answer 30

Broca's area

Question 31

Cognition areas

Answer 31

Association cortices and prefrontal cortex

Question 32

Short term memory areas

Answer 32

Hippocampus

Question 33

Consciousness areas

Answer 33

Reticular formation