Anatomy Fun Facts

Question 1

What are the four unpaired bones of the cranium?

Answer 1

Ethmoid, sphenoid, frontal, occipital

Question 2

Bones of the viscerocranium (except mandibular condyle) are formed by ____________ growth.

Answer 2

intramembranous

Question 3

The __________ is considered the weakest part of the skull.

Answer 3

Pterion.

Middle meningeal artery runs under it

Question 4

The _______ nasal conchae is its own bone.

Answer 4

inferior

Question 5

The _______ artery is a branch of the ICA and gives most blood supply to the eye.

Answer 5

opthalmic artery

Question 6

The palatine bones make up the __________ of the hard palate.

Answer 6

posterior 1/3

Question 7

Along with V2 (nasopalatine, infraorbital, greater palatine), which nerve from V1 gives sensory innervation to the nose?

Answer 7

Anterior ethmoidal nerve

Question 8

Which arteries supply the nose?

Answer 8

Sphenopalatine (maxillary), anterior ethmoidal (opthalmic), facial artery (septal branch)

Question 9

Underneath each conchae is a space called a ________.

Answer 9

meatus

Question 10

Most nosebleeds arise from a rupture in the __________.

Answer 10

Kiesselbach’s plexus

Sphenopalatine, greater palatine, superior labial, anterior ethmoid, lateral nasal branches

Question 11

The _______ meatus contains openings for the frontal, maxillary, ethmoidal (ant and middle) sinuses.

Answer 11

middle

Question 12

What are the components of the SCALP?

Answer 12

S - Skin
C - Connective tissue
A - Aponeurosis
L - Loose connective tissue
P - Periosteum

Question 13

Meninges from superficial to closest to brain?

Answer 13

Epidural space
Dura mater
Subdural space
Arachnoid
Subarachnoid space
Pia mater

Question 14

The ________ space is filled with CSF and contains cerebral circulation.

Answer 14

subarachnoid

Question 15

The ________ space contains bridging veins.

Answer 15

subdural

Question 16

The __________ space contains the middle meningeal artery.

Answer 16

epidural

Question 17

The _____ folds run vertically and through the midline. The _______ folds run horizontally.

Answer 17

falx; tentorium

Question 18

Drainage of the head/brain is via the ________ which forms from the inferior petrosal and sigmoid sinuses.

Answer 18

internal jugular vein

Question 19

The cavernous sinus is drained via the ____________.

Answer 19

opthalmic veins

Question 20

What will be the first never affected by an infection in the cavernous sinus or pituitary tumor?

Answer 20

CN VI

Smallest and most medial

Question 21

The ________ connects the anterior facial vein and pterygoid plexus.

Answer 21

deep facial vein

Question 22

What is the flow of CSF?

Answer 22

Lateral ventricles -> third ventricle -> cerebral aqueduct -> fourth ventricle -> subarachnoid space -> venous circulation

Question 23

Where is the blood-brain barrier absent?

Answer 23

Hypothalamus, pineal gland, postrema, near third ventricle

Question 24

T/F: The ICA has several branches in the neck.

Answer 24

False

Contribute ACA and MCA on circle of Willis

Question 25

Which artery gives off the vertebral arteries?

Answer 25

L and R Subclavian arteries

Question 26

Which branch of the ICA follows the optic nerve through the optic foramen into the orbit?

Answer 26

opthalmic artery

Question 27

Which nerves provide general sensation to the tongue?

Answer 27

V3, IX, X

Question 28

Which nerves mediate taste?

Answer 28

VII (anterior), IX (posterior), X (epiglottis) All to gustatory nucleus via solitary tract

Question 29

Which nerve gives motor senses to the tongue?

Answer 29

XII

Question 30

Which nerves are associated with the first four pharyngeal arches (form the tongue)?

Answer 30

Arch 1 = V Arch 2 = VII Arch 3 = IX Arch 4 = X

Question 31

Which papillae of the tongue are the most numerous and avascular?

Answer 31

Filiform; do not contain taste buds

Question 32

Which tongue papillae are on the lateral of the tongue?

Answer 32

Foliate

Question 33

T/F: Fungiform papillae normally contain tastebuds.

Answer 33

True

Question 34

All tongue muscles except the ________ are innervated by CN XII.

Answer 34

palatoglossus

Question 35

Which muscles attach to the genial tubercles?

Answer 35

Genioglossus and geniohyoid

Question 36

Which arteries and veins provide for the tongue?

Answer 36

Lingual artery; veins drain to IJV

Question 37

The _________ protrudes the tongue.

Answer 37

genioglossus

Question 38

The _________ is the only major structure medial to the hyoglossus.

Answer 38

Lingual artery Lingual vein/nerve, submandibular duct, hypoglossal nerve all lateral to hyoglossus

Question 39

Which nerve from V3 contributes motor function to the palate?

Answer 39

Tensor veli palatine Rest of palate is pharyngeal plexus (CN X)

Question 40

Which vessels supply blood to palate?

Answer 40

Greater palatine artery and sphenopalatine artery (incisive foramen)

Question 41

Most muscles of the soft palate attach to the __________.

Answer 41

palatal aponeurosis

Question 42

What would result from the incomplete fusion of the palatine shelves?

Answer 42

Bifid uvula

Question 43

T/F: There are lymph follicles and crypts on pharyngeal tonsils.

Answer 43

FALSE Palatine tonsils

Question 44

Which muscles prevent food from entering the nasopharynx?

Answer 44

Tensor and levator veli palatini

Question 45

CN ___ provides sensory innervation to the pharynx, while CN ___ provides motor innervation.

Answer 45

X; XI (via X)

Question 46

Which muscle of the palate is not innervated by X or XII?

Answer 46

Stylopharyngeus (CN IX)

Question 47

What are two common areas for food to get caught?

Answer 47

Vallecula or pyriform recesses

Question 48

What nucleus in the medulla oblongata is the "swallowing center".

Answer 48

Nucleus ambiguous

Question 49

Which artery supplies blood to all salivary glands?

Answer 49

External carotid artery

Question 50

What is the sequence of tear drainage?

Answer 50

Gland -> puncta -> canals -> sac -> duct -> inferior meatus

Question 51

Describe the pathway of innervation for the lacrimal gland.

Answer 51

Greater petrosal nerve (VII) -> pterygopalatine ganglion -> lacrimal nerve (V1) to gland