Intro Flashcards

1
Q

What are the 2 major divisions of the nervous system?

A

Central nervous system and Peripheral nervous system

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2
Q

What is the CNS comprised of?

A

Brain
Spinal cord

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3
Q

What are the 2 subsections of PNS?

A

Somatic nervous system
Autonomic nervous system

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4
Q

Describe the somatic NS

A

Receives sensory info from around the body
Contains a motor part which is voluntary (motor neurons that innervate muscles)

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5
Q

Describe the autonomic NS

A

Under involuntary control
Works through effectors in smooth muscle, gland and cardiac muscle

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6
Q

Where is anterior axis?

A

Brain side

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7
Q

Where is posterior axis?

A

Back side

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8
Q

Where is the dorsal axis?

A

The back

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9
Q

Where is the ventral axis?

A

The belly

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10
Q

Where is the medial axis?

A

Close to the midline

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11
Q

Where is the lateral axis?

A

Close to the outer body

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12
Q

Where is the superior axis?

A

Above

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13
Q

Where is the inferior axis?

A

Below

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14
Q

Where does the sagittal plane cut across?

A

Across the midline

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15
Q

Where does the parasagittal plane cut?

A

Parallel to the midline

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16
Q

Where does the coronal plane cut?

A

Cuts into anterior and posterior

17
Q

Where does the horizontal plane cut?

A

Separates superior and inferior

18
Q

Where does the longitudinal plane cut?

A

Along the length

19
Q

Where does the transverse plane cut?

A

Across the spinal cord (horizontal)

20
Q

What is in the forebrain?

A

Cerebral hemispheres
Thalamus and hypothalamus

21
Q

What is in the hindbrain?

A

Pons
Cerebellum
Medulla

22
Q

What does the midbrain control?

A

Basic motor control
Processes pain

23
Q

What is the ventricular system?

A

A space within the brain full of cerebrospinal fluid that provides protection
Maintains ion levels
Removes waste products

24
Q

Where is the ventricular system?

A

Lateral ventricles meet at 3rd ventricle and a tube goes into 4th ventricle

25
What are the 4 subdivisions of the spinal cord? Starting at the top
Cervical Thoracic Lumbar Sacral
26
What are the 2 enlargements in the spinal cord?
Cervical enlargement Lumbosacral enlargement
27
What is the role of cervical enlargement?
Accommodates neurons needed to move arms
28
What is the role of the lumbosacral enlargement?
Accommodates neurons needed to move legs
29
What neurons are found in the sacral region?
Neurons required for bladder control
30
What neurons are found in thoracic region?
Autonomic neurons
31
Where is grey matter found?
The outside of the brain
32
What does grey matter contain?
Cell bodies of neurons and glia
33
Where is white matter found?
Inside the brain
34
What does white matter contain?
Neuronal axons wrapped in myelin
35
What are the dorsal spinal cord functions?
Sensory info into the spinal cord (Afferent)
36
What are the ventral spinal cord functions?
Sensory info out of spinal cord (Efferent)