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Flashcards in Anatomy Workshops Deck (47):
1

where is the location of the third neurone in the somatosensory pathway for discriminative touch

thalamus

2

where do 85% of upper motor neurone axons decussate

the medulla oblongata

3

testing the actions of the biceps femoris tests what spinal root levels

C5, S1

4

what is saltatory conduction

jumping between the nodes of ranvier

5

what are schwann cells

myelinators of the PNS

6

contraction of what muscle against resistance tests C7 motor function of the radial nerve

triceps

7

weakness of right trapezius indicates a weakness in which nerve

spinal accessory

8

extension of the back tests which muscle aswell as testing posterior rami

erector spinae group

9

where is CSF in the spinal cord

central canal

10

what is the main sensory and motor component of the biceps (jerk) reflex

musculocutanous (C5,6) mainly C6

11

complete transection (LMN) injury of what nerve results in grade 0 power in extension movements of the arm

radial nerve

12

what supplies sensation to the skin of the suprapubic region

T12 spinal nerve

13

what supplies sensation to the skin of the 1st web space

L5 spinal nerve

14

what supplies sensation to the skin of the middle finger

median nerve

15

what supplies sensation to the skin of the heel

S1 spinal nerve

16

what are the output cells of the cerebellum

purkinje cells

17

what part of spinal cord/nerves give antereolateral sensation

anterior rami

18

what part of spinal cord/nerves give visceral sensation

visceral afferent (posterior rami)

19

what part of spinal cord/nerves contains only somatic motor and sympathetic axons

anterior roots and rootlets

20

what part of midbrain has a large anterior bulge

pons

21

which part of midbrain looks like mickey mouse

midbrain- cerebral aqueduct is the mouth

22

what is the worm in the brainstem

olivary nucleus of the medulla oblongata

23

interrupting the direct pathway of the basal ganglia causes what clinical sign

hypokinesia/ bradykinesia

24

what is the clinical symptom of demylination of the posterior column (MS)

loss of fine touch

25

would a lesion in the CST produce contralateral or ipsilateral symptoms

ipsilateral

26

what is the role of latissimus dorsi

upper limb adduction/ internal rotation

27

what contains fibres of fine touch and proprioception from upper AND lower limbs

dorsal column

28

what carries pain, temp and deep pressure fibres

spinothalamic tract

29

fibres within what tract cross at the decussation of the pyramids

lateral corticospinal tract

30

which part of the diencephalon which has an endocrine function

hypothalamus

31

what lies inferior to the part of the cerebral hemisphere concerned with vision

cerbellum

32

what matter contains axons but no cell bodies

white matter

33

occulusion of which artery would cause a CVA the pre central left gyrus

anterior cerebral

34

what specialised structures pierce the dura mater on order to transfer CSF to the venous system

arachnoid granunlations

35

what does the spinothalamic tract convery

pain

36

what does the dorsal column convey

fine touch, conscious proprioception

37

what does bocas
area do

language production

38

what does wernickes area do

language comprehension

39

where does vagus leave the cranium

jugular foramen

40

what is the last point supplied by the vagus nerve

splenic flexure

41

the sympathetic axons that supply the orbit pass through here

carotid canal

42

what type of axons pass through the foramen rotundum

sensory- CN V3

43

what type of axons leave the skull via the hypoglossal canal

motor- hypoglossal nerve

44

what is the path of the sympathetic nerve supply to the eye

T1 sympathetic trunk
superior cervical sympathetic ganglion
internal carotid plexus
ciliary ganglion
short ciliary nerve

45

what only normall exits in relation to the spinal cord (not brain) and can be accessed via the L3/4 interspace

extradual (epidural) space

46

what cranial nerve contains visceral afferents that originate within the carotid sheath

CN IX

47

what CN: crossed motor axons exit via the posterior aspect of the midbrain at its junction with the pons

CN IV