SM_17b: Head and Neck Sagittal Section Lab Tutorial

Question 1

Nasal and oral cavities develop from the ____, while the pharynx, airway, and esophagus develop from the ____

Answer 1

Nasal and oral cavities develop from the stomodeum, while the pharynx, airway, and esophagus develop from the foregut

Question 2

____ is above the soft palate, ____ is behind the tongue, and ____ is around the larynx

Answer 2

Nasopharynx is above the soft palate, oropharynx is behind the tongue, and laryngopharynx is around the larynx

Question 3

____ in the body of the sphenoid bone contains the ____

Answer 3

Sella turcica in the body of the sphenoid bone contains the pituitary gland

(mylohyoid muscle is floor of the oral cavity)

Question 4

____ is C1, while the ____ is C2

Answer 4

Atlas is C1, while the axis is C2

Question 5

Larynx and trachea are ____ to pharynx and esophagus

Answer 5

Larynx and trachea are anterior to pharynx and esophagus

Question 6

____ separates the nasopharynx and oropharynx

Answer 6

Soft palate separates the nasopharynx and oropharynx

(back of hard palate is horizontal plate of the palatine bone)

Question 7

____ raises the soft palate, while the ____ and ____ lower the soft palate and the ____ tenses the soft palate

Answer 7

Levator palati raises the soft palate, while the palatoglossus and palatopharyngeus lower the soft palate and the tensor veli palatini tenses the soft palate

Question 8

____ bone has superior and middle conchae

Answer 8

Ethmoid bone has superior and middle conchae

Question 9

Superior meatus drains the ____

Answer 9

Superior meatus drains the posterior ethmoid air cells

Question 10

Inferior meatus drains the ____

Answer 10

Inferior meatus drains the nasolacrimal duct (tears)

Question 11

Middle meatus drains the ____, ____, and ____

Answer 11

Middle meatus drains the frontal sinus, maxillary sinus, and anterior ethmoid air cells

Question 12

____ is over the hiatus semilunaris

Answer 12

Ethmoid bulla is over the hiatus semilunaris

Question 13

Temporal fossa contains the ____

Answer 13

Temporal fossa contains the temporalis muscle

Question 14

Infratemporal fossa contains the ____, ____, and ____

Answer 14

Infratemporal fossa contains the mandibular nerve, maxillary artery, and pterygoid muscles

Question 15

Pterygopalatine fossa contains the ____, ____, and ____

Answer 15

Pterygopalatine fossa contains the maxillary nerve, pterygopalatine ganglion, and sphenopalatine artery

Question 16

Greater and lesser palatine nerves tunnel down to ____ and ____

Answer 16

Greater and lesser palatine nerves tunnel down to hard palate and soft palate

Question 17

Roof of the oral cavity is the ___

Answer 17

Roof of the oral cavity is the bony palate

Question 18

____ and ____ comprise the posterior boundary of the oral cavity proper

Answer 18

Palatoglossal arch and sulcus terminalis comprise the posterior boundary of the oral cavity proper

Question 19

____ is the muscle for the floor of the oral cavity

Answer 19

Mylohyoid muscle is the muscle for the floor of the oral cavity

Question 20

____ is over the sublingual glands

Answer 20

Plica sublingualis is over the sublingual glands

Question 21

Lingual nerve ____ the duct of the submandibular gland and is more ____ than somatomotor nerve XII

Answer 21

Lingual nerve spirals under the the duct of the submandibular gland and is more superficial than somatomotor nerve XII

Question 22

Glottis is ____, while food can get trapped in the ____

Answer 22

Glottis is fold of mucosa containing vocal cords, while food can get trapped in the piriform recess

(ventricle tells where the vocal cords are)

Question 23

Cartilages of the larynx include the ____, ____, and ____

Answer 23

Cartilages of the larynx include the arytenoid cartilage, thyroid cartilage, and cricoid cartilage ring

• Thyroid cartilage moves backwards -> reduces tension -> lowers pitch of voice

Question 24

Transverse arytenoid muscle ____ the vocal folds, while the posterior cricoarytenoid muscle ____ the vocal folds

Answer 24

Transverse arytenoid muscle adducts the vocal folds, while the posterior cricoarytenoid muscle abducts the vocal folds