Head and neck

Question 1

Thoracic Outlet Syndrome

Answer 1

Compression of the trunks of the brachial plexus and the sublclavian artery within the scalene triangle

Question 2

Laceration of what vessel results in Epidural hematoma

Answer 2

Middle Meningeal artery from Maxillary artery

Question 3

Paryngeal arches composed of

Answer 3

mesoderm and NC cells

Question 4

Pharyngeal pouches composed of

Answer 4

Endoderm

Question 5

Pharyngeal grooves and clefts composed of

Answer 5

Ectoderm

Question 6

What N componenet of Pharyngeal arch 1

Answer 6

Trigeminal:

Mandibular N

Question 7

What N component of Pharyngeal arch 2

Answer 7

Facial N

Question 8

What N component of pharyngeal arch 3

Answer 8

CN 9

Question 9

What N component of pharyngeal arch 4

Answer 9

CN 10

Superior laryngeal N

Pharyngeal branches

Question 10

What N component of pharyngeal arch 6

Answer 10

CN 10

Recurrent Laryngeal N

Question 11

What muscles derived from pharyngeal arch 1

Answer 11

1. Muscles of mastication:
   
   1. Masseter
   2. Temporalis
   3. lateral pterygoid
   4. Medial pterygoid
2. Digastic
3. Mylohyoid
4. Tensor tympani
5. Tensor veli palatini

Question 12

What muscles derived from pharyngeal arch 2

Answer 12

1. Muscles of facial expression
2. Diagstric (posterior belly)
3. Stylohyoid
4. Stapedius

Question 13

What muscles derived from pharyngeal arch 3

Answer 13

Stylopharyngeus muscle

Question 14

What muscle is derived from pharyngeal arch 4

Answer 14

Cricothyroid muscle

Soft palate

5 muscles of phaynx

Question 15

What muscle is derived from phayrngeal arch 6

Answer 15

Intrinsic muscles of larynx (except cicothyroid muscle)

Question 16

What artery components of phayrngeal arch 3

Answer 16

Rt and Lt common carotid

Rt and Lf internal carotid

Question 17

What artery component of pharyngeal arch 4

Answer 17

Right subclavian

Arch of aorta

Question 18

What artery component of pharyngeal arch 6

Answer 18

Rt and lf pulmonary arteries

Ductus arteriosus

Question 19

Pharyngeal pouch 1 becomes

Answer 19

Epithelial lining of auditory tube and middle ear cavity

Question 20

Pharyngeal pouch 2 becomes

Answer 20

Epithelial lining of crypts of palatine tonsil

Question 21

Pharyngeal pouch 3 becomes

Answer 21

Inferior parathyroid gland

Thymus

Question 22

Pharyngeal pouch 4 becomes

Answer 22

Superior parathyroid gland

C-cells of thyroid

Question 23

Pharyngeal groove 1 becomes

Answer 23

Epithelial lining of external auditory meatus

Question 24

Anterior 2/3 of tongue associated with

Answer 24

Pharyngeal arches 1 and 2

Question 25

Taste sensation of pos 1/3 of tongue carried by

Answer 25

CN9

Question 26

General sensation of pos 1/3 of tonge by

Answer 26

CN 9

Question 27

General sensation of Ant 2/3 of tongue

Answer 27

Lingual branch of CN 5

Question 28

Taste sensation of Ant 2/3 of tongue by

Answer 28

Chorda tympani of CN 7

Question 29

Posterior 1/3 of tongue associated with

Answer 29

Pharyngeal arch 3

Question 30

Somatic (motor) innervation of tongue bye

Answer 30

CN 12 **except palatoglossus muscle**

Question 31

Cleft lip occurs when

Answer 31

Maxillary prominence fails to fuse with medial nasal prominence

Question 32

Cleft palate occurs when

Answer 32

The palatine shelves fail to fuse with each other or the primary palate

Question 33

What runs through superior orbital fissure

Answer 33

CN 3, 4, 5₁ and ophthalmic veins

Question 34

What runs through foramen rotundum

Answer 34

Maxillary neve (CN 5₂)

Question 35

What runs through foramen ovale

Answer 35

Mandibular N (CN 5₃)

Question 36

What runs through foramen spinosum

Answer 36

Middle meningeal artery

Question 37

What runs through internal auditory meatus

Answer 37

CN 7 and CN 8

Question 38

What runs through jugular foramen

Answer 38

CN 9, CN 10, CN 11

Question 39

Why runs through hypoglossal canal

Answer 39

CN 12

Question 40

What runs though the foramen magnum

Answer 40

Spinal Cord CN 11 Vertebral arteries

Question 41

Epidural space

Answer 41

Space between the periosteal dura and the bones of the skull

Question 42

Subdural space

Answer 42

Space between the meningeal dura and the arachnoid membrane

Question 43

Subarachnoid space

Answer 43

Between the arachnoid and pia mater Contains CSF

Question 44

Epidural hematoma clinical

Answer 44

* Lens-shaped * Momentary loss of consciousness followed by a lucid period of up to 48 hrs * Elevated Intracranial P * Herniation of **temporal lobe, coma, and death**