Quiz 1

Question 1

What is a potential effect of a clot in the superior saggital sinus?

Answer 1

Loss of consciousness

Question 2

Where would an obstrution in the superior saggital sinus occur?

Answer 2

Arachnoid villus

Question 3

The Adamkiewicz artery directly connects which two vessels?

Answer 3

Aorta to anterior spinal artery

Question 4

An infrarenal obstruction of the aorta could affect which vessel?

Answer 4

Adamkiewicz artery (and therefore the spinal artery)

Question 5

The arachnoid villus connects which two spaces?

Answer 5

Subarachnoid space and superior saggital sinus

Question 6

Which artery would be the culprit of an epidural hematoma?

Answer 6

Middle meningeal artery

Question 7

Which artery is the likely cuprit in a patient experiencing vision problems?

Answer 7

Posterior cerebral artery

Question 8

Describe CNI?

Answer 8

Olfactory
Sensory
Smell

Question 9

Describe CN II.

Answer 9

Optic
Sensory
Vision

Question 10

Describe CN III.

Answer 10

Oculomotor
Motor
Most eye movement (superior rectus, medial rectus, inferior rectus)

Question 11

Describe CN IV.

Answer 11

Trochlear
Motor
Moves eye (superior oblique via the trochlear muscle)

Question 12

Describe CN V.

Answer 12

Trigeminal
Both
Face sensation, mastication (V1 opthalmic, V2 maxillary, V3 mandibular)

Question 13

Describe CN VI.

Answer 13

Abducens
Motor
Abducts the eye (lateral rectus)

Question 14

Describe CN VII.

Answer 14

Facial
Both
Facial expression, glands, taste (anterior 2/3 of tongue)

Question 15

Describe CN VIII.

Answer 15

Vestibulocochlear
Sensory
Hearing and balance

Question 16

Describe CN IX.

Answer 16

Glossopharyngeal
Both
Taste (posterior 1/3 of tongue) and gag reflex

Question 17

Describe CN X.

Answer 17

Vagus
Both
Gag reflex, voicebox motor, intestinal sensation, parasympathetic innervation

Question 18

Describe CN XI.

Answer 18

Spinal accessory
Both
Shrugging shoulders

Question 19

Describe CN XII.

Answer 19

Hypoglossal
Motor
Muscles of tongue and floor of the mouth (swallowing, speech)

Question 20

What is anosmia?

Answer 20

Loss of sense of smell (and therefore taste)

Question 21

A fracture of the cribiform plate could result in what?

Answer 21

Anosmia

Question 22

Ptosis of the upper eyelid involves which cranial nerve?

Answer 22

CN III (oculomotor) — responsible muscle: levator palpebrae superioris

Question 23

Assessing pupillary response to light involves which cranial nerve?

Answer 23

Optic nerve (CN II)

Question 24

A patient with mastoiditis may lose function of which cranial nerve? Why?

Answer 24

Facial nerve; the facial nerve closely follows the middle ear by the mastoid process

Question 25

What type nerve cell is most commonly found in the body?

Answer 25

Multipolar

Question 26

Where are Schwann cells found?

Answer 26

PNS

Question 27

Where are oligodendrocytes found?

Answer 27

CNS

Question 28

Where are astrocytes found?

Answer 28

CNS

Question 29

What do astrocytes do?

Answer 29

Maintain BBB Structural support in CNS

Question 30

Where is information from the right toe being perceived?

Answer 30

Left side somatosensory cortex

Question 31

Descibe a patient with Broca’s aphasia?

Answer 31

Broca’s area = building language Non-fluent, broken speech Comprehension is OK

Question 32

Describe a patient with Wernicke’s aphasia.

Answer 32

Wernicke’s = understanding Fluent but meaningless speech Poor comprehension/understanding

Question 33

Describe a patient with conduction aphasia.

Answer 33

Fluent but with repeated attempts at the correct word; more errors with longer phrases Comprehension is OK *recall “todo” man from lecture

Question 34

Describe a patient with global aphasia.

Answer 34

Mute or non-fluent Poor comprehension

Question 35

What primary cortex is found on the occipital area of the brain?

Answer 35

Primary visual cortex

Question 36

What is the function of the corpus callosum?

Answer 36

Connects L and R hemispheres to coordinate information

Question 37

What is the functin of the cerebellum?

Answer 37

Fine motor control, posture, and balance

Question 38

What is the function of the pons?

Answer 38

Links the medulla with the thalamus; part of the brainstem

Question 39

What is the function of the medulla oblongata?

Answer 39

Controls breathing, HR, BP; reflex actions (vomiting, coughing, sneezing)

Question 40

What is the function of the midbrain?

Answer 40

Control of visual and auditory systems, body movement

Question 41

What is the function of the pituitary gland?

Answer 41

Production of hormones that control growth, sexual development, and metabolism

Question 42

What is the function of the hypothalamus?

Answer 42

Homeostasis; control of temperature and osmoreculation, secretes hormones

Question 43

What is the function of the cerebral cortex?

Answer 43

Sensory information (vision, smell, hearing); higher cognitive functions

Question 44

Describe the normal curvature of the spine.

Answer 44

Cervical lordosis Thoracic kyphosis Lumbar lordosis

Question 45

What is a dermatome?

Answer 45

Area of skin associated with the sensory nerve

Question 46

Dermatome T4 is associated with which area of the body?

Answer 46

Breast/chest

Question 47

Dermatome T10 is associated with which area of the body?

Answer 47

Belly button

Question 48

A spinal root ganglion is described as…

Answer 48

Posterior Afferent Sensory Dorsal

Question 49

Which reflex is most prominent? Which spinal cord segment is it associated with?

Answer 49

Knee-jerk L4

Question 50

Describe the blood supply to the spinal cord.

Answer 50

1 anterior spinal artery 2 posterior spinal arteries