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Flashcards in Fuck Ups Deck (18)
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1

The functions of the cerebellum are entirely ______________ and it functions at the unconscious level

Motor

2

What is areflexia

Loss of efferent component of reflex arc

3

Where does the vagus enter the medulla

Joins spinal trigeminal tract and synapses in the spinal trigeminal nucleus

4

lesion of the internal capsule affects CN 11 on which side?

ipsilateral (CNT fibers damaged)

5

lesion of the internal capsule affects the CST/CNT that project to where mainly?

Contralateral side

6

What are neuropils

dense network of interwoven nerve fibers & their branches and synapses, together with glial filaments

7

5HT_3 is related to

Vomiting and is ionotropic

8

Ascending cholinergic RAS fibers do what to arousal

Increase arousal

9

The molecular layer of the cerebellum is the

Outermost pale layer that has relatively few cells and lots of cell processes

10

What causes Ca to influx to allow for exocytosis of NT vesicles

Action potentials reach the synaptic knob and then voltage gated Ca channels open allow Ca into the cell, this Ca causes docking and fusion of vesicles

11

Lesions of the midbrain involving MLF/trochlear nucleus result in

Contralateral SO muscle paralysis, while other CN lesions affect ipsilateral

12

Lesion of the trochlear nerve root causes

Paralysis of superior oblique on contralateral side

13

The inferior salivatory nucleus supplies

Otic ganglion (parotid)

Parasympathetics from CN9 ride on CN11

14

What structures of the metencephalon give rise to the cerebellum

Cerebellar anlage and the rhombic lip

15

What do the PPT and LDT do

They are cholinergic areas that affect arousal

They use the dorsal and ventral pathways that the RAS uses

16

What makes up the BBB

Pericytes, astrocytes, endothelial tight junctions, basal lamina (basement membrane)

17

Involuntary movements of the eye are controlled by

Occipital eye fields in visual association cortex

The VAC projects corticotectal fibers to the superior colliculus to allow you to follow a target

18

Histamine is made from what AA

Histidine