Neck and head Flashcards
Scalene triangle components
Trunk of the brachial plexus
Sublclavian artery
Causes of the thoracic outlet syndrome
- Tumors of the neck
- Cervical rib
- Hyperthrphy of scalene muscles
Compositions of the phraryngeal arches
Mesoderm and neural crest
Compositions of the phraryngeal groove
Ectoderm
Compositions of the phraryngeal pouches
Endoderm
Nerve of the first pharyngeal arch
Trigeminal (V) mandibular branch
Artery of the first pharyngeal arch
None
Muscles of the first pharyngeal arch
Muscles of mastication:
* Messeter
* Temporalis
* Pterygoid (lateral and medial)
Swalowing
* Digastric (anterior belly)
* Mylohyoid
* Tensor veli palatini
Blocks chewing noise
* Tensor tympani
Skeletal/cartilage of the first pharyngeal arch
- Temporal
- Zygomatic
- Maxilla
- Mandible
- Ear bones (incus and malleus)
Nerve of the second pharyngeal arch
Facial (VII)
Artery of the second pharyngeal arch
None
Muscles of the second pharyngeal arch
Muscles for facial expression
* Swallow muscles: digastric (posterior belly) and stylohoid
* Stapedius (ear)
Skeletal/cartilage of the second pharyngeal arch
- Stapes (ear)
- Styloid process
- Hyoid (lesser horn and upper body)
Nerve of the third pharyngeal arch
Glosopharyngeal (IX)
Artery of the third pharyngeal arch
- Right and left common carotid arteries
- Right and left internal carotid arteries
Musclesof the third pharyngeal arch
Stylopharyngeus muscle (swallow)
Skeletal/cartilage of the third pharyngeal arch
Hyoid bone (greater lesser and lower body)
Nerve of the fourth pharyngeal arch
Vagus (V)
* Superior laryngeal nerve
* Paryngeal branches
Arteries of the fourth pharyngeal arch
- Right subclavian artery (right arch)
- Arch of aorta (left arch)
Muscles of the fourth pharyngeal arch
- Cricothyroid muscle (tonses vocal)
- Soft palate
- Pharyngeal constrictors
Skeletal/cartilage of the fourth pharyngeal arch
NO BONES
Thyroid cartilage
Nerve of the sixth pharyngeal arch
- Right and left pulmonary arteries
- Ductus arteriosus
Muscles of the sixth pharyngeal arch
Intrinsic muscles of the larynx (except cricothyroid muscle)
Skeletal/cartilages of the sixth pharyngeal arch
NO BONES
All other laryngeal cartilages
Structures derivated from the first pharyngeal groove
- Ear canal - external auditory meatus
- Ear drums - tympanic membrane
Structures derivated from the second pharyngeal groove
Fades as embryos grows
Structures derivated from the ** third pharyngeal groove**
Fades as the embryo grows
Structures derivated from the fourth pharyngeal groove
Fades as the embryo grows
Structures derivated from the first pharyngeal pouches
- Internal auditory meatus - middle ear
- Eustachian tube
Structures derivated from the second pharyngeal pouches
Primitive tonsils
Structures derivated from the third pharyngeal pouches
Dorsal: inferior parathyroid
Ventral: primitive tymus
Structures derivated from the fourth pharyngeal pouches
- Superior parathyroid
- Ultimupharyngeal body
Pharyngeal arches that form the anterior two-thirds of the tongue
Pharyngeal arches 1 and 2
General sensation of the anterior two-thirds of the tongue
Lingual branch of the mandibulaar nerve (CN V)
Taste sensation of the anterior two-thirds of the tongue
Chorda tympani of the CN VII (facial)
Pharyngeal arches that form the posterior one-third of the tongue
Pharyngeal arch 3 and 4
General sensation of the anterior two-thirds of the tongue
CN IX (glosopharyngeal)
Taste sensation of the anterior two-thirds of the tongue
CN IX (glosopharyngeal)
Motor innervation of the tongue
CN XII (hypoglosal)
which vessel usually lacerates in a epidural hematoma?
middle meningeal artery
Typical image of a epidural hematoma
Lens-shaped (biconvex) at the lateral hemisphere
Symptoms of a epidural hematoma
- mometary loss of consciousness
- elevated intracraneal pressure
- Headache
- Nausea
- Vomitting
Vessel lacerated during a subdural hematoma
Bridging (cortical) cerebral vein
Typical image of a subdural hematoma
Crescenet-shaped hematoma at the lateral hemisphere
Signs of a subdural hematoma
Signs of elevated intracranial pressure
Vessel lacerated during a subarachnoid hematoma
Cerebral artery and anterior communicating artery
Signs of a subarachnoid hematoma
severe headache