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Hugh's MD1 Neuro > Introduction > Flashcards

Flashcards in Introduction Deck (25):
1

True or false, the cranial nerves are purely sensory?

False, they can be both motor and sensory

1

What innervates dermatomes (be specific)?

Bilateral pair of dorsal root ganglia

1

Where does the CSF sit in relation to the meninges?

Subarachnoid space

2

Generally, what is the function of the cerebellum?

Refines the execution of motor programs from the cerebral cortex

2

What is the major role of the thalamus?

Sensory relay

3

What is present in the dorsal root ganglia?

Cell bodies for sensory nerves

4

What runs in ventral root of spinal nerves? 

Efferent motor axons whose cell bodies lie in the ventral horn of the spinal cord

4

How many enlargements of the spinal cord are there?

2 - cervical and lumbar

4

What are the three layers of the meninges, from outside in?

Dura

Arachnoid

Pia

6

What are the grooves in the brain called?

Sulcus/Sulci

7

What is the major role of the hypothalamus?

Maintains homeostasis

Controls the pituitary gland

8

Where does the CSF flow out of the ventricles?

At the fourth ventricle

10

What command do axons in the ventral root of spinal nerves give?

Motor - contraction of skeletal muscle

10

What type of information is dealt with in the dorsal root of the spinal cord?

Sensory

13

What are the ridges in the brain called?

Gyrus/Gyri

15

What is the most important role of the basal ganglia?

Motor control

17

What structures make up the brainstem?

Mid brain

Pons

Medulla

18

What are the four lobes of the cerebral cortex?

Frontal

Parietal

Temporal

Occipital

19

Which part of the brain is responsible for higher functions in humans (eg consciousness)

The cerebrum

20

What are the major roles of the brainstem?

Cardiorespiratory control

Arousal/wakefulness/sleep cycle

21

What information in carried by axons in the dorsal root of spinal nerves?

Afferent sensory information

22

Where is the grey matter in the spinal cord?

Internal, surrounded by white matter

23

At what level does the spinal cord end?

L1/2

24

What is the name of the space that runs between the two hemispheres of the brain?

Horizontal fissure

25

What is the name of the thin layer of cortex on the exterior of the cerebrum?

Cerebral cortex