Embryology (Pharyngeal Apparatus) Flashcards
Pharyngeal apparatus constitutes:
The pharyngeal pouch
The pharyngeal groove/cleft
The pharyngeal membrane
The pharyngeal arch
The pharyngeal apparatus helps in formation of ________ and _________
The neck and head region
The elevation in the lateral primitive wall of the pharynx caudal during the 4th week of intrauterine development is ___________
Pharyngeal arch
The elevation between the arch on the outer aspect of the pharyngeal wall is ________
Pharyngeal cleft/groove
The pouch between them on the inner aspect of the pharyngeal wall is ______________
Pharyngeal pouch
Components of the pharyngeal arch
Muscle component
Cartilaginous rod/bar
A core
A nerve
Pharyngeal arch artery
Arteries of the pharyngeal arch
1st Arch Artery:
Maxillary Artery
2nd Arch Artery:
Hyoid and stapedial artery
3rd Arch Artery:
Common Carotid Artery
Internal Carotid Artery
4th Arch Artery:
Aortic Arch Artery
Subclavian Artery
6th Arch Artery:
Dorsus interosis
Pulmonary Artery
________ is a horseshoe-shaped with its end directed dorsally
A cartilagr
The dorsal endnjs higher than the ventral end refers to ______
The cartilage
Cartilage of the pharyngeal arch constitutes
1st Arch cartilage
It is known as Meckel’s cartilage
It forms the malleus and incus bone
It consist of stephnomandibular and spine of bone
2nd Arch cartilage
It is known as Reicherts Cartilage
It forms the stapes bone and styloid process
It consist of the upper part of the hyoid bone and lesser horn
3rd Arch Cartilage
It forms the lower part of the hyoid bone and greater horn
4th and 6th Arcg Cartilage
It forms the thyroid, corniculate, cricoid, artenoid and cuneiform
Highlight the nerves of the pharyngeal arch
Trigeminal nerve
Facial nerve
Glossopharyngeal nerve
Superior laryngeal nerve
Recurrent laryngeal nerve
_______ is the nerve of the 1st arch
Trigeminal nerve
Trigeminal nerve is of _______ division, namely;
2 Division
Namely;
Maxillary division
Mandibular division
________ nerve supplies the taste fibers to the anterior two third of the tongue
The chord tympanic nerve
The nerve of the 2nd arch nerve is ______
Facial nerve
_________ supplies the motor bunches to all muscles derived from the 2nd arch
Facial nerve
Glossopharyngeal nerve is the nerve of the _________ arch
The nerve of the 3rd Arch
Superior and recurrent laryngeal nerve is derived from __________ nerve
Vagus nerve
2nd arch muscle refers to ________
The facial expression muscle
Tue 2nd arch muscle comprises of
Stylohyoid
Posterior & anterior belly of gastric
Stapedius
3rd Arch muscle is made up of
Stylopharyngeus
6th arch muscle constitute ______
The intrinsic muscle of larynx
4th Arch muscle constitute _______
Cricothyroid
Levator veli palati
Contractors of the pharynx
The first arch syndrome refers to ________
Treachers Collins syndrome
