Pharyngeal Apparatus Flashcards
Pharyngeal apparatus is also known as
branchial apparatus
Branchial apparatus means
Gills
Pharyngeal apparatus starts developing from—- day
Day 22
PHARYNGEAL APPARATUS is involved in forming —— part of the embryo
cephalic end and face of embryo
COMPONENTS OF THE PHARYNGEAL APPARATUS are??
arches
- grooves
- pouches
- membranes
Which pharyngeal arches are prominent and which aren’t
1-4 are prominent;5th is absent;6th is transient
arches are separated by ——on the outside and by ——— on the inside
Grooves/clefts
Pouches
First pharyngeal arch is also called?
mandibular arch
Cartilage of First pharyngeal arch and what is derived from it
Meckel’s cartilage
Malleus,sphenomandibular ligament
List the prominences of the First pharyngeal arch
State which is ventral or dorsal
State their derivatives
mandibular(ventral) and maxillary(dorsal)
maxillary dorsal prominence becomes the future maxilla,zygomatic bone, and squamous part of temporal bone
-mandibularry ventral part becomes the mandible
Malleus and incus
Arterial supply of First pharyngeal arch?
1st aortic arch-maxillary artery
First pharyngeal pouch gives?
Auditory/eustachian tube/pharngotympanic membrane(ventral end)
Tympanic cavity(distal end)
First pharyngeal groove gives?
external auditory meatus
Which nerve is associated with the First pharyngeal arch?
trigeminal nerve except the opthalamic division
What ligaments are associated with First pharyngeal arch?
anterior ligament of malleus,sphenomandibular ligament
Muscles associated with First pharyngeal arch?
Mylohyoid muscle Anterior belly of digastric muscle Muscles of mastication (Temporalis,masseter,medial and lateral pterygoid) Tensor tympani Tenso veli palatini
Function of tensor tympani
Its role is to dampen loud sounds, such as those produced from chewing, shouting, or thunder.
Origin and insertion of tensor tympani
Auditory tube
Handle of malleus
The tensor tympani is a muscle within the ——
middle ear,
Tensor veli palatini is located in the —— of skull
in the pterygoid fossa of skull
Second pharyngeal arch is also called the ——?
hyoid arch
——- pharyngeal arch enlarges and overthrows the——- arches by —- week
Second
3rd and 4th
5th
Which artery supplies the Second pharyngeal arch
2nd aortic arch
hyoid and stapedial artery
Second pharyngeal pouch gives?
Supra tonsillar fossa(a part of the tonsils)
Cartilage of the Second pharyngeal arch is ?
reichart’s cartilage
reichart’s cartilage evolves into ??
Stapes and styloid process of temporal bone and lesser hornu and upper portion of hyoid
Nerve associated with Second pharyngeal arch is —??
facial nerve
muscules associated with Second pharyngeal arch are?
Muscles of facial expression (like buccinator,orbicularis oculi,orbicularis oris, occipitalis,frontalis,auricularis.platysma)
Posterior belly of digastric muscle
Stylohyoid muscle
Stapedius