Respiration

horny teeth

branchial basket

internal gill slit

external gill slit

branchial pouch

chorioallantoic membrane

amnion

chorion

allantoic membrane

allantois

yolk sac

frontal sinus

naris

hard palate

tongue

mandible

hyoid bone

vocal chord

thyroid cartilage

trachea

esophagus

cricoid cartilage

vertebra

epiglottic cartilage

laryngopharynx

palatine tonsil

oropharynx

soft palate

auditory tube

nasopharynx

sphenoidal sinus

conchae

lung

auditory tube

choana

naris

tongue

glottis

laryngotracheal chamber

bronchus

stomach

pharynx

gill raker

branchial arch

secondary lamella

primary lamella

opercular chamber

mandibular arch

hyoid arch

branchial arch

gill

parabranchial chamber

external gill slit

spiracle

pharynx

esophagus

coelom

parabranchial chamber

branchial chamber

gill lamellae

holobranch

interbranchial septum

gill ray

hemibranch

gill raker

hyoid arch

spiracle

spiracular valve

naris

gill

opercular cavity

pectoral girdle

body wall

esophagus

opercular valve

operculum

pharynx

mouth cavity

terminal bronchiole

respiratory bronchioles

alveolar duct

alveoli

artery

venule

vein

concha

palate

epiglottis

trachea

primary bronchus

lung

diaphragm

auditory tube

nasopharynx

larynx

esophagus

pleura

bronchiole

pericardial cavity

alveoli

pleural cavity

vein

venule

alveoli

arteriole

artery