head and neck

Question 1

what are fontanelles?

Answer 1

feature of infant skull compromising of soft membranous gaps between cranial bones

Question 2

name the sutures of the skull

Answer 2

• sagittal
• coronal
• lambdoid

Question 3

what is the cranial composed of?

Answer 3

• ethmoid
• frontal
• occipital
• sphenoid
• temporal

Question 4

what is the cranial vault (top of skull composed of)?

Answer 4

• frontal
• occipital
• parietal
• temporal

Question 5

name the bones which contribute to the orbit?

Answer 5

• ethmoid
• lacrimal bone
• maxilla
• zygomatic
• sphenoid
• frontal

Question 6

other than bones, what other structures lie in the orbit?

Answer 6

optic foramen, superior orbital fissure, inferior orbital fissure

Question 7

which cranial nerves supply the orbit?

Answer 7

• CN 3 (oculomotor)
• CN 4 (trochlear)
• CN 5 (trigeminal)
• CN 6 (abducens)

Question 8

which nerve supplies the teeth?

Answer 8

infraorbital

Question 9

which vessel supplies majority of blood to head an neck?

Answer 9

common carotid (only supplier to brain)

Question 10

the common carotid artery spits into 2 branches, what are these?

Answer 10

internal and external common carotid artery

Question 11

which common carotid after, internal or external, has no branches in the neck?

Answer 11

internal

Question 12

what does the internal carotid artery supply?

Answer 12

• anterior part of brain
• eye
• forehead
• nose

Question 13

where does external carotid artery supply?

Answer 13

head and neck

Question 14

which artery supplies the pharynx?

Answer 14

ascending pharyngeal

Question 15

which artery supplies the floor of the mouth?

Answer 15

lingual

Question 16

which artery supplies the thyroid?

Answer 16

superior thyroid

Question 17

which artery supplies the back of the scalp?

Answer 17

occipital

Question 18

which artery supplies the ear?

Answer 18

posterior auricular

Question 19

which artery supplies the temporals muscle and scalp?

Answer 19

superficial temporal

Question 20

which artery supplies the maxilla?

Answer 20

maxillary

Question 21

which vein drains the cerebrum, inside the skull and most external structures?

Answer 21

internal jugular vein

Question 22

which area of the head and neck does the external jugular vein drain?

Answer 22

some external structures

Question 23

what is the fluid found in the brain and spinal chord called?

Answer 23

cerebrospinal fluid

Question 24

which cells produce cerebrospinal fluid?

Answer 24

ependymal cells

Question 25

does the opthalmic branch of the trigeminal nerve have sensory or motor functions?

Answer 25

sensory

Question 26

does the maxillary branch of the trigeminal nerve have sensory or motor functions?

Answer 26

sensory

Question 27

does the mandibular branch of the trigeminal nerve have sensory or motor functions?

Answer 27

motor and sensory

Question 28

the TMJ is what type of joint?

Answer 28

synovial

Question 29

what is a synovial joint?

Answer 29

connection of 2 bones consisting of cartilage lined cavity filled with synovial fluid

Question 30

which muscle opens the mouth?

Answer 30

lateral pterygoid

Question 31

the rams is a bone in the TMJ, it has 2 processes, what are they called?

Answer 31

- coronoid process | - condylar process

Question 32

what is the function of synovial fluid?

Answer 32

help movement

Question 33

what is the name of the disc that splits the TMJ into 2 synovial joint cavities?

Answer 33

articular disk

Question 34

the TMJ has greatest stability when?

Answer 34

mandible is elevated and teeth occlude

Question 35

the condole of the TMJ sits in which structure?

Answer 35

articular fossa

Question 36

the articular surface of the TMJ is covered by which type of cartilage?

Answer 36

fibrocartilage

Question 37

the TMJ contains 3 extra capsular ligaments, what are these?

Answer 37

- lateral ligament - sphenomandibular ligament - stylomandibular ligament

Question 38

which nerves supply the TMJ?

Answer 38

auricultemporal and masseteric nerves which arise from the trigeminal

Question 39

which vessels provide blood supply to the TMJ?

Answer 39

common carotid artery

Question 40

which nerve supplies the muscles of mastication?

Answer 40

mandibular branch of trigeminal

Question 41

the masseter muscle has 2 parts, what are these?

Answer 41

deep and superficial

Question 42

what is the function of the temporals muscle?

Answer 42

elevate and retract mandible

Question 43

what is the function of the medial pterygoid?

Answer 43

elevate and protrude mandible

Question 44

what is the function of the lateral pterygoid?

Answer 44

depress and protrude mandible

Question 45

one pterygoid muscle runs horizontal and the other vertical, which muscle runs which way?

Answer 45

lateral - horizontal | medial - vertical