Brain and CNS/PNS

Question 1

Label this picture

Answer 1

Question 2

where is an epidural administered?

Answer 2

When administering an epidural, the needle is inserted into the space between the vertebrae and dura mater.

Question 3

where is a lumbar puncture administered

Answer 3

When performing a lumbar puncture, the needle is inserted into the space between the arachnoid mater and the pia mater.

Question 4

Label this picture

Answer 4

Question 5

which direction to ventral rootlets carry information

Answer 5

away (afferent)

Question 6

which nerve rootlets carry efferent information

Answer 6

dorsal

Question 7

what sort of nerves are efferent

Answer 7

sensory

Question 8

what sort of nerves are afferent

Answer 8

motor

Question 9

how many pairs of spinal nerves are there?

Answer 9

31

Question 10

what is there just above the cauda equina

Answer 10

conus medullaris - termination of the spinal cord

Question 11

what is the thin thread which holds the spinal nerves in place from the conus medullaris to C1 called

Answer 11

filum terminale

Question 12

what is the name of the area at the base of the skull where the spinal cord starts?

Answer 12

foramen magnum

Question 13

Why are there two well-defined enlargements along the length of the spinal cord?

Answer 13

they provide innervation to the limbs

Question 14

Where on the hand would you test dermatome C8?

Answer 14

little finger

Question 15

what are the two divisions of the autonomic NS

Answer 15

sympathetic and parasympathetic

Question 16

where do the parasympathetic nerves emerge?

Answer 16

brainstem and s2-s4

Question 17

where do the sympathetic nerves emerge?

Answer 17

t1-l2

Question 18

label these sutures

Answer 18

Question 19

what is the suture at the back of the head called?

Answer 19

sagittal

Question 20

name the bones of the neurocranium

Answer 20

frontal, parietal, temporal, occipital, sphenoid, ethnoid

Question 21

which is the only synovial joint of the skull

Answer 21

temporomandibular joint

Question 22

what is the proper name of the cheekbone. which two bones make it

Answer 22

zygomatic arch
zygomatic and temporal

Question 23

what bones make the bridge of your nose

Answer 23

nasal bones

Question 24

which is the thin wedge bone behind your nose

Answer 24

vomer

Question 25

which bones are at the back of the hard palate (behind the maxilla)

Answer 25

palatine bones

Question 26

what are the little bones at the medial part of the orbit

Answer 26

lacrimal bone

Question 27

what is the xiphoid process

Answer 27

sticking out bit of bone at the bottom of the body of the sternum

Question 28

label this picture

Answer 28

Question 29

what are the little holes at the sides of cervical vertebrae called? What are they for

Answer 29

transverse foramina, passage of vertebral arteries which supply the brain

Question 30

which spinous processes are bifid?

Answer 30

cervical

Question 31

what is the sticking up bit on the axis called

Answer 31

dens

Question 32

what’s a defining feature of thoracic vertebrae

Answer 32

articulate with ribs

Question 33

which vertebrae look a bit like a giraffe’s face from the posterior aspect

Answer 33

thoracic