Pig's Respiratory System

Endoderm

Germ layer of all under respiratory system

respiratory system

this system is for breathing and gas exchange

pharynx

also known as the throat

respiratory and digestive system

organ systems of the pharynx

pharynx

tube-like passageway of food and air

epiglottis

prevents food or fluid from entering the trachea

epiglottis

invagination, flap-like covering the throat

glottis

combination of vocal folds and the opening between them

glottis

evagination; combination of vocal folds

vocal folds for production of sound

fate of glottis

4 pairs

limit of pairs of pharyngeal archers

6 pairs

limit of pairs of pharyngeal grooves

pharyngeal arches

develop from the cephalic (head) portion of the neural crest

lateral lingual swellings and tuberculum impar incus

fate of 1st pharyngeal arches

copula, stapes (small bones in your ears)

fate of 2nd pharyngeal arches

pinna (auricle) of external ear

fate of elevation from 1st and 2nd pharyngeal arches

epiglottis

fate of 3rd and 4th pharyngeal arches

Pharyngeal grooves

made out of ectoderm (pharyngeal)

ectoderm, mesoderm, and endoderm

germ layer of pharyngeal arch

ectoderm

germ layer of pharyngeal grooves

endoderm

germ layer of pharyngeal pouch

external auditory meatus (external ear canal)

fate of 1st pharyngeal grooves

tympanic membrane

fate of 1st closing plates

2nd pharyngeal clefts

fate of 2nd pharyngeal grooves and 2nd closing plates

cervical sinus

fate of 3rd and 4th pharyngeal grooves

pharyngeal pouches

endodermal out-pockets occuring between the pharyngeal arches

later incorporated into the thyroid gland, where they give rise to parafollicular cells

fate of 5th pharyngeal pouch

superior parathyroid glands, regulation of blood, get calcium from bones

fate of 4th phrayngeal pouch

inferior parathyroid glands

fate of DORSAL PORTION OF 3rd pharyngeal pouches and 3rd closing plates

thymus gland

fate of VENTRAL PORTION OF 3rd pharyngeal pouches and 3rd closing plates

palatine tonsils

fate of 2nd pharyngeal pouches

eustachian tube

fate of UPPER PORTION 1st pharyngeal pouches

tympanic (middle ear) cavity

fate of LOWER PORTION 1st pharyngeal pouches

larynx

voice box

trachea

windpipe which allows air to flow into the lungs

eparterial bronchus

form the upper lobe of the RIGHT lung

Lung buds

forms all of the future airways

brachial plexus

bundle of branching supporting nerves and movement of arms

pharynx and larynx

if cut is aorta the hole above and below are

esophagus and trachea

if cut is ventricle the hole above and below are

common cardinal vein

lateral to the trachea

caudal cardinal vein

vein lateral to the foreleg bud is

lung

main respiratory organ

pleural cavity

cavity surrounding the lungs