Peripheral Nervous System and the Spinal Cord Flashcards Preview

Psych 3313 > Peripheral Nervous System and the Spinal Cord > Flashcards

Flashcards in Peripheral Nervous System and the Spinal Cord Deck (133)
Loading flashcards...
1

Autonomic nervous system functions

Involuntary responses

2

Cranial nerve II

Optic. Sensory. Sight

3

How can the BBB potentially be opened or weakened?

high blood pressure, microwaves, ultrasonic waves, radiation, infection, injury (stroke, inflammation, pressure)

4

Blockage of CSF flow usually at narrow points in the passage

Hydrocephalus

5

How is blood supplied to the brain anteriorly?

Carotid arteries

6

Spinal nerve regions for sympathetic and parasympathetic

Sympathetic = thoracic/lumbar
Parasympathetic = cranial/sacral

7

Cranial nerve VIII

Vestibulocochlear/auditory. sensory. inner ear

8

Same side of the midline

ipsilateral

9

What does the blood brain barrier do?

Excludes some molecules from passing easily

10

Far from the center

Distal

11

Opposite sides of the midline

contralateral

12

CSF path of flow

Ventricles down the spinal cord and up and around the cortex

13

What molecules are allowed through the BBB via passive diffusion?

water, some gasses like O2 and CO2, and lipid soluble molecules

14

What are the cerebral ventricles filled with?

CSF

15

Why is there left arm pain during a heart attack and who does it occur in?

Its linked to a spinal nerve and is pretty much only in males

16

How much CSF is replenished and how often?

100-150 mL at a time, replenished 3x a day

17

What are the 4 cerebral ventricles?

Lateral ventricles, third ventricle and fourth ventricle

18

What molecules are allowed through the BBB via active transport (protein channel)?

glucose and amino acids

19

Cranial nerve condition causing temporary paralysis of one side of face

Bell's palsy

20

Where does CSF exit into the bloodstream?

Superior sagittal sinus

21

How is the BBB related to Alzheimer's?

Research is showing that the BBB is leaky in Alzheimer's

22

How is blood supplied to the brain posteriorly?

Vertebral arteries at base of skull

23

What do the sympathetic and parasympathetic pathways use at targets

Sympathetic uses NE and parasympathetic uses ACh

24

Functions of the somatic nervous system

Voluntary movement

25

Fight or flight response

Sympathetic division

26

What procedures are done on the meninges?

Spinal tap and epidural

27

Towards the midline

Medial

28

2nd synapse NT of sympathetic and parasympathetic

NE in sym and ACh in parasym

29

NTs of autonomic nervous system

ACh and NE

30

Cranial nerve VI

Abducens. Motor. external rectus muscle (eye)