Exam 3: Eye, Ear, Etc lecture iv and Neck lecture

Question 1

middle ear’s air-filled cavity, the _ cavity, is w/in the temporal bone

Answer 1

tympanic cavity

Question 2

the tympanic cavity, the _ tube opens into the cavity

Answer 2

pharyngotympanic tube

Question 3

some middle ear contents (we are learning 3)

Answer 3

1. auditory ossicles
2. chorda tympani nerve
3. two skeletal muscles: tensor tympani and stapedius

Question 4

the malleus is attached to the _ membrane

Answer 4

auditory ossicle; tympanic membrane

Question 5

the incus and stapes are attached to the

Answer 5

auditory ossicles; oval window

Question 6

the chorda tympani is a branch of the _ nerve (and CN #)

Answer 6

facial nerve (CN VII)

Question 7

the tensor tympani runs from bone and wall of pharyngotympanic tube to the _

Answer 7

malleus

Question 8

the tensor tympani, it tenses the the tympanic membrane and dampens movements of the ossicles, which help with

Answer 8

preventing loud sounds from damaging the internal ear

Question 9

the stapedius runs from wall of tympanic cavity to _

Answer 9

stapes

Question 10

the stapedius dampens movements of the

Answer 10

stapes

Question 11

the hyoid bone contains a _, two _ and two _

Answer 11

a body, two greater horns, and two lesser horns

Question 12

the hyoid bone makes _ with any other bone

Answer 12

no joints

Question 13

the hyoid bone is suspended, inferior to the mandible, from the styloid processes of the temporal bones by the _

Answer 13

stylohyoid ligaments

Question 14

the hyoid bone provides a _ for the tongue

Answer 14

movable base

Question 15

the hyoid bone serves as a _ to help keep the airway open, and is required for _

Answer 15

a prop; required for swallowing

Question 16

sternocleidomastoid: origin

Answer 16

from mastoid process and superior nuchal line (ie skull)

Question 17

sternocleidomastoid: insertions (a 2 headed muscle)

Answer 17

1. to manubrium of sternum (sternal head of muscle)

2. medial third of clavicle (clavicular head of muscle)

Question 18

sternocleidomastoid: innervation (and CN #)

Answer 18

spinal accessory nerve (CN XI)

Question 19

sternocleidomastoid: produces multiple movements of _ and _

Answer 19

produces multiple movements of the head and neck

Question 20

sternocleidomastoid (SCM): action includes either head extension or head flexion via _

Answer 20

bilateral contraction of both SCMs

Question 21

sternocleidomastoid (SCM): action includes assisting in _ during breathing via bilateral contraction of both SCMs

Answer 21

rib cage expansion

Question 22

sternocleidomastoid (SCM): action includes laterally flexing the head (bending it sideways) and rotating head so chin rotates toward the contralateral (opposite) side via

Answer 22

unilateral contraction of one SCM

Question 23

arteries in anterior cervical and SCM regions: brachiocephalic trunk: ascends from from the

Answer 23

arch of the aorta (1st branch off the aorta)

Question 24

arteries in anterior cervical and SCM regions: brachiocephalic trunk: bifurcates into the

Answer 24

right common carotid (supplies head and neck) artery and right subclavian artery (supply limbs)

Question 25

arteries in anterior cervical and SCM regions: the right subclavian artery becomes the _ artery

Answer 25

right axillary artery

Question 26

arteries in anterior cervical and SCM regions: left common carotid artery: arises from the _

Answer 26

aortic arch

Question 27

arteries in anterior cervical and SCM regions: left common carotid artery: both common carotid arteries ascend within a _

Answer 27

carotid sheath

Question 28

arteries in anterior cervical and SCM regions: the carotid sheath is a tube of deep fascia that also contains the (2 structures)

Answer 28

internal jugular vein and vagus nerve

Question 29

arteries in anterior cervical and SCM regions: left subclavian artery: arises from the _

Answer 29

aortic arch

Question 30

arteries in anterior cervical and SCM regions: left subclavian artery: becomes the _ artery

Answer 30

left axillary artery

Question 31

arteries in anterior cervical and SCM regions: each common carotid artery terminates by dividing into an _ artery and _ artery

Answer 31

internal carotid artery and an external carotid artery

Question 32

arteries in anterior cervical and SCM regions: carotid sinus: a dilation of the proximal part of the

Answer 32

internal carotid artery (it may involve the common carotid artery too)

Question 33

arteries in anterior cervical and SCM regions: carotid sinus: in its wall are _ that detect changes in arterial blood pressure

Answer 33

baroreceptors

Question 34

veins in anterior cervical and SCM regions: right internal jugular vein: drains (3 structures)

Answer 34

brain, anterior face, and neck structures

Question 35

veins in anterior cervical and SCM regions: right internal jugular vein and right subclavian vein: drain _ and merge to form _

Answer 35

drains upper limb; merge to form the right brachiocephalic vein

Question 36

veins in anterior cervical and SCM regions: right internal jugular vein and right subclavian vein: t/f, pattern repeats of the left

Answer 36

true

Question 37

veins in anterior cervical and SCM regions: rt and lt brachiocephalic veins merge to form the _ which drains to the rt atrium

Answer 37

superior vena cava

Question 38

veins in anterior cervical and SCM regions: external jugular vein: drains into the _ before that vein merges with the internal jugular vein (on rt and lt sides)

Answer 38

into the subclavian vein

Question 39

veins in anterior cervical and SCM regions: external jugular vein: part of it lies on the surface of

Answer 39

SCM

Question 40

veins in anterior cervical and SCM regions: external jugular vein: it drains many head structures external to the

Answer 40

skull

Question 41

thyroid: consists mostly of _ lobes, united by a thin, central _

Answer 41

mostly of rt and lt lobes, united by a thin, central isthmus

Question 42

thyroid: wraps around the _ and _ aspects of the trachea at the level of the trachea's 2nd to 4th rings

Answer 42

anterior and lateral aspects

Question 43

thyroid: blood supply: a four-way anastomosis of the _ arteries

Answer 43

right and left SUPERIOR thyroid arteries and rt and lt INFERIOR thyroid arteries

Question 44

thyroid: blood supply: the rt and lt inferior thyroid arteries are branches of branches of the _ arteries

Answer 44

subclavian arteries

Question 45

parathyroids: typically, 4 of these (two _ and two _ parathyroids) exist on the _ surface of the thyroid

Answer 45

(two superior parathyroids and two inferior parathyroids) exists on the posterior surface of the thyroid

Question 46

t/f: aberrant parathyroid glandular tissue is not uncommon

Answer 46

true

Question 47

larynx: consists of an articulating skeleton of 9 cartilages joined by _, _, and _, and lined with _

Answer 47

ligaments, membranes, and muscles, and lined w/ mucous membrane

Question 48

larynx: thyroid cartilage (1): (the largest/smallest?); its anterior projection is the _

Answer 48

(largest); laryngeal prominence

Question 49

larynx: thyrohyoid membrane: attached thyroid cartilage to

Answer 49

hyoid

Question 50

larynx: epiglottic cartilage (1): is _ cartilage

Answer 50

elastic

Question 51

larynx: epiglottic cartilage (1): together w/ an overlying mucous membrane forms the

Answer 51

epiglottis

Question 52

larynx: epiglottic cartilage (1): attached by ligaments to the _ cartilage and _ bone

Answer 52

thyroid cartilage and hyoid bone

Question 53

larynx: epiglottic cartilage (1): prevents _ from entering the larynx during swallowing

Answer 53

food

Question 54

pharynx has how many parts? and what are they?

Answer 54

3 1. nasopharynx 2. oropharynx 3. laryngopharynx

Question 55

pharynx: nasopharynx: posterior to the

Answer 55

nose

Question 56

pharynx: nasopharynx: the superior, _ part of the pharynx

Answer 56

non-collapsible part

Question 57

pharynx: nasopharynx: contains the _ tonsil

Answer 57

pharyngeal tonsil

Question 58

pharynx: nasopharynx: has only a _ fcn

Answer 58

respiratory fcn

Question 59

pharynx: oropharynx: posterior to the

Answer 59

mouth

Question 60

pharynx: laryngopharynx: posterior to the

Answer 60

larynx