Fuck Ups Flashcards Preview

Neuro Exam 2 > Fuck Ups > Flashcards

Flashcards in Fuck Ups Deck (18)
Loading flashcards...
1
Q

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

A

Motor

2
Q

What is areflexia

A

Loss of efferent component of reflex arc

3
Q

Where does the vagus enter the medulla

A

Joins spinal trigeminal tract and synapses in the spinal trigeminal nucleus

4
Q

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

A

ipsilateral (CNT fibers damaged)

5
Q

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

A

Contralateral side

6
Q

What are neuropils

A

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

7
Q

5HT_3 is related to

A

Vomiting and is ionotropic

8
Q

Ascending cholinergic RAS fibers do what to arousal

A

Increase arousal

9
Q

The molecular layer of the cerebellum is the

A

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

10
Q

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

A

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
Q

Lesions of the midbrain involving MLF/trochlear nucleus result in

A

Contralateral SO muscle paralysis, while other CN lesions affect ipsilateral

12
Q

Lesion of the trochlear nerve root causes

A

Paralysis of superior oblique on contralateral side

13
Q

The inferior salivatory nucleus supplies

A

Otic ganglion (parotid)

Parasympathetics from CN9 ride on CN11

14
Q

What structures of the metencephalon give rise to the cerebellum

A

Cerebellar anlage and the rhombic lip

15
Q

What do the PPT and LDT do

A

They are cholinergic areas that affect arousal

They use the dorsal and ventral pathways that the RAS uses

16
Q

What makes up the BBB

A

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

17
Q

Involuntary movements of the eye are controlled by

A

Occipital eye fields in visual association cortex

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

18
Q

Histamine is made from what AA

A

Histidine