GEN ANA LAB EXAM

Question 1

space within the cranium

Answer 1

cranial cavity

Question 2

roof of the cranial cavity

Answer 2

calvaria

Question 3

a midline ridge of bone extending from the surface of the frontal bone

Answer 3

frontal crest

Question 4

the frontal crest is a point of attachment for what structure

Answer 4

falx cerebri

Question 5

what separates the two cerebral hemispheres

Answer 5

falx cerebri

Question 6

an intradural venous structure

Answer 6

superior sagittal sinus

Question 7

what marks the location of the arachnoid granulations

Answer 7

granular foveolae

Question 8

how many bones makes up the skull

Answer 8

22:
8 cranial bones
14facial bones

Question 9

what are the cranial bones

Answer 9

2 parietal bone
2 temporal bone
1 frontal bone
1 occipital bone
1 sphenoid bone
1 ethmoid bone

Question 10

what are the facial bones

Answer 10

1 mandible
1 vomer
2 maxilla
2 zygomatic bones
2 inferior nasal conchae
2 nasal bones
2 lacrimal bones
2 palatine bones

Question 11

what suture connects the two parietal bones

Answer 11

sagittal suture

Question 12

what suture connects the frontal and parietal bones

Answer 12

coronal suture

Question 13

what suture connects temporal, sphenoid, frontal and parietal bones together

Answer 13

Pterion

Question 14

what suture connects the parietal bones to the occipital bone

Answer 14

lambdoid suture

Question 15

the point where sagittal suture and coronal suture meet

Answer 15

bregma

Question 16

what suture connects parietal and temporal bone

Answer 16

squamous suture

Question 17

the point where lambdoid, parietomastoid, and occipitomastoid sutures meet

Answer 17

asterion

Question 18

prominent structures readily identifiable when a brain with meningeal coverings is examined

Answer 18

arachnoid granulations

Question 19

what structure reabsorbs cerebrospinal fluid

Answer 19

arachnoid granulations

Question 20

what structure allows small olfactory nerve fibers pass through its foramina from the nasal mucosa to the olfactory bulb

Answer 20

cribriform plate

Question 21

Posterior to both the frontal and ethmoid bones, the rest of the floor of the anterior cranial fossa is formed by what structure

Answer 21

the body and lesser wing of sphenoid bone

Question 22

what is the boundary between the anterior and middle cranial fossa

Answer 22

pre-chiasmatic sulcus

Question 23

the smooth groove stretching between the optic canals across the body of the sphenoid

Answer 23

pre-chiasmatic sulcus

Question 24

what process serves as the anterior point of attachment for the tentorium cerebelli

Answer 24

anterior clinoid process

Question 25

what sheet of dura separates the posterior part of the cerebral hemispheres from the cerebellum

Answer 25

tentorium cerebelli

Question 26

what elevated structure forms the floor in the midline of the middle cranial

Answer 26

sella turcica

Question 27

inferior view, what structure is closed by a cartilaginous plug

Answer 27

foramen lacerum

Question 28

what are the four distinct osseous segments of the temporal bone

Answer 28

1. petrous 2. tympanic 3. squamous 4. petromastoid

Question 29

the styloid process is a part of which segment of the temporal bone

Answer 29

tympanic

Question 30

the greater petrosal nerve is a branch of what nerve

Answer 30

Facial Nerve

Question 31

what is contained in the largest and deepest cranial fossae

Answer 31

midbrain pons medulla cerebellum

Question 32

a slope of bone that extends upward from the foramen magnum.

Answer 32

clivus

Question 33

what structures pass through the foramen magnum

Answer 33

1. spinal cord 2. meninges 3. vertebral arteries 4. spinal roots of the accessory nerve

Question 34

where do emissary veins to nasal cavity pass through

Answer 34

foramen cecum

Question 35

cranial nerves (in order)

Answer 35

1. Olfactory 2. Optic 3. Oculomotor 4. Trochlear 5. Trigeminal 6. Abducent 7. Facial 8. Vestibulocochlear 9. Glossopharyngeal 10. Vagus 11. Accessory 12. Hypoglossal

Question 36

# cranial nerve smell

Answer 36

1. olfactory

Question 37

# cranial nerve vision

Answer 37

2. optic

Question 38

# cranial nerve eye movement, eyelid elevation, pupillary constriction, lens accomodation

Answer 38

3. occulomotor

Question 39

# cranial nerve Assists in turning eyeball downward and laterally

Answer 39

4. trochlear

Question 40

# cranial nerve Cornea, skin of forehead, scalp, eyelids, and nose; also mucous membrane of paranasal sinuses and nasal cavity (top face)

Answer 40

5. trigeminal (ophthalmic division) (V1)

Question 41

# cranial nerve middle face

Answer 41

5. trigeminal (maxillary division) (V2)

Question 42

# cranial nerve muscles of mastication

Answer 42

5. trigeminal nerve (mandibular division) (V3)

Question 43

# cranial nerve Lateral rectus muscle; turns eyeball laterally (abduction)

Answer 43

6. abducent

Question 44

# cranial nerve muscles of face

Answer 44

7. facial

Question 45

# cranial nerve taste from anterior 2/3 of tongue

Answer 45

7. facial (sensory)

Question 46

# cranial nerve balance and hearing

Answer 46

8. vestibulocochlear

Question 47

# cranial nerve assists in swallowing

Answer 47

9. glossopharyngeal

Question 48

# cranial nerve Constrictor muscles of pharynx and intrinsic muscles of larynx

Answer 48

10. vagus (motor)

Question 49

# cranial nerve Taste from epiglottis and vallecula and afferent fibers from structures named above

Answer 49

10. vagus (sensory)

Question 50

# cranial nerve Muscles of soft palate, pharynx, and larynx

Answer 50

11. accessory (cranial root)

Question 51

# cranial nerve Sternocleidomastoid and trapezius muscles

Answer 51

11. accessory (spinal root)

Question 52

# cranial nerve tongue movement

Answer 52

12. hypoglossal

Question 53

what are the afferent cranial nerves (sensory)

Answer 53

CN: I, II, VIII

Question 54

what are the efferent cranial nerves (motor)

Answer 54

CN: III, IV, VI, XI, XII

Question 55

what cranial nerves are both sensory and motor

Answer 55

CN: V, VII, IX, X

Question 56

# structures that pass through: hypoglossal canal

Answer 56

CN XII

Question 57

# structures that pass through: jugular foramen

Answer 57

CN IX, X , XI internal jugular vein

Question 58

# structures that pass through: internal acoustic meatus

Answer 58

CN VII, VIII labyrnthine artery and vein

Question 59

# structures that pass through: foramen spinosum

Answer 59

middle meningeal artery

Question 60

# structures that pass through: foramen ovale

Answer 60

CN V3

Question 61

# structures that pass through: carotid canal

Answer 61

internal carotid artery

Question 62

# structures that pass through: foramen lacerum

Answer 62

cartilage

Question 63

# structures that pass through: foramen rotundum

Answer 63

CN V2

Question 64

# structures that pass through: superior orbital fissure

Answer 64

CN V1, III, IV, VI

Question 65

# structures that pass through: optic canal

Answer 65

CN II

Question 66

# structures that pass through: cribriform plate

Answer 66

CN I

Question 67

an oval opening in the midline through which the midbrain passes

Answer 67

tentorial notch

Question 68

an opening in the center of the diaphragma sellae that connects the pituitary gland with the base of the brain, and any accompanying blood vessels

Answer 68

infundibulum

Question 69

a small branch of the maxillary artery

Answer 69

accessory meningeal artery

Question 70

a thick, tough, outer covering of the brain

Answer 70

cranial dura mater

Question 71

firmly attached to the skull; is the periosteum of the cranial cavity

Answer 71

periosteal layer

Question 72

in close contact with the arachnoid mater

Answer 72

meningeal layer

Question 73

what surrounds the brain and the spinal cord

Answer 73

dura mater (outer) arachnoid mater (middle) pia mater (inner)

Question 74

a clear, colorless, cell-free fluid that circulates through the subarachnoid space surrounding the brain and spinal cord.

Answer 74

cerebrospinal fluid

Question 75

the arterial supplies of the dura mater

Answer 75

anterior, posterior, and accessory meningeal arterial

Question 76

innervation of the dura mater

Answer 76

1. CN V 2. CN X 3. c1-c3

Question 77

what supplies the anterior part of falx cerebri

Answer 77

ophthalmic nerve (CN V1)

Question 78

a thin, avascular membrane that lines, but is not adherent to, the inner surface of the dura mater

Answer 78

arachnoid mater

Question 79

the real and potential spaces within the cranial cavity which couples the unique arrangement of meninges

Answer 79

1. extradural space 2. subdural space 3. subarachnoid space

Question 80

the CSF returns to the venous system through what structure

Answer 80

arachnoid villi