Comprehensive Portion Of Exam 4

Front 1

Divisions of the Trigeminal Nerve

Back 1

Opthalmic (CN V1)
Maxillary (CN V2)
Mandibular (CN V3)

Front 2

CN V3 characteristics

Back 2

Mandibular division of Trigeminal/CN V:

Only division of CN V containing motor fibers (supply muscles of mastication, tensor muscles of the palate & tympanic membrane, mylohyoid and anterior belly of the digastric in floor of the oral cavity/)

Divides into anterior & posterior divisions.

Front 3

Branches of Trigeminal nerve

Back 3

-Supraorbital n. (V1)
-Greater Palatine n. (V2)
-Nasopalatine n. (V2)
-Inferior Alveolar n. (V3)
-Auriculotemporal n. (V3)
-Lingual n. (V3)

(All V3 branches above come from posterior division of Mandibular/CN V3)

Front 4

Posterior Cervical Triangle Boundaries

Back 4

base: middle section of the clavicle;
posterior: trapezius
anterior: sternomastoid (SCL).

roof: formed by the skin, superficial fascia (w/part of platysma), & the investing fascia with the spinal accessory nerve (CN XI) in it

The floor:
Splenius capitis
Levator scapulae
Scalenes (Anterior, Posterior, Middle)
(covered with prevertebral fascia)

Front 5

Contents of Posterior Cervical Triangle

Back 5

Spinal Accessory nerve
Omohyoid muscle
External Jugular vein
Axillary vein
R. subclavian artery
occipital artery
brachial plexus (roots/trunks)
lesser occipital nerve
great auricular nerve
transverse cervical nerve
supraclavicular nerves
lymph nodes

Front 6

Anterior Cervical Triangle boundaries

Back 6

superiorly: lower border of the body of the mandible;
posteriorly: anterior border of the sternomastoid;
anteriorly: midline extending from the chin to the sternal notch in the manubrium

Front 7

Anterior Cervical Triangle subdivisions

Back 7

1) submandibular triangle
-body of mandible & digastric muscle (both bellies.)

2) carotid triangle
-sternomastoid, posterior belly of digastric, and the superior belly of omohyoid.

3) The muscular triangle
-superior belly of omohyoid, the lower anterior margin of sternomastoid, and the midline of the neck.

4) submental triangle
-anterior bellies of R&L digastric muscles, and the body of the hyoid.

Front 8

Anterior Cervical Triangle contents

Back 8

[subdivisions and contents]

Front 9

Terminal Branches of the Brachial Plexus

Back 9

1) Musculocutaneous n.
2) Ulnar n.
3) Axillary n.
4) Radial n.
5) Median n.

Front 10

Musculocutaneous N.

Back 10

(from Lateral cord of brachial plexus)
Coracobrachialis, Biceps Brachii, Brachialis

Front 11

Ulnar n.

Back 11

(from Medial cord of brachial plexus)
flexor carpi ulnaris, medial 1/2 of flexor digitorum profundus,

Front 12

Axillary n.

Back 12

(from posterior cord of brachial plexus)
deltoid, teres minor

Front 13

Radial n.

Back 13

(from posterior cord of brachial plexus)
triceps brachii, brachioradialis, extensor carpi ulnaris, supinator, abductor pollicis longus, extensor(s) pollicis longus&brevis, extensor carpi radialis longus&brevis, extensor(s) digitorum & digiti minimi, extensor indicis

Front 14

Median n.

Back 14

(2 median roots combined)
pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, lateral 1/2 of flexor digitorum profundus, flexor pollicis longus, pronator quadratus

Front 15

Compartments of the leg

Back 15

1) Anterior compartment
-Tibialis anterior
-Extensor digitorum longus
-Peroneus tertius
-Extensor Hallucis longus
2) Lateral compartment
-Peroneus longus
-Peroneus brevis
3)Posterior compartments
-Gastrocnemius
-Soleus
-Plantaris
-Popliteus
-Flexor digitorum longus
-Flexor hallucis longus
-Tibialis posterior

Front 16

Blood supply to Leg

Back 16

Anterior compartment: Anterior Tibial artery

Lateral compartment: Peroneal (fibular) circumflex artery

Posterior compartment: Posterior Tibial a. & Peroneal a.

Venous: great and lesser saphenous veins

Front 17

Divisions of the Mediastinum

Back 17

*Superior
*Inferior:
-anterior
-middle
-posterior

*separated by trans-thoracic plane

Front 18

Contents of Superior Mediastinum

Back 18

thymus gland (or remnant)
great vessels of heart
ligamentum arteriosum
3 branches of aortic arch
phrenic nerves
vagal nerves
L. recurrent laryngeal nerve
trachea
esophagus
cardiac plexuses

Front 19

Contents of Inferior Mediastinum

Back 19

(Anterior:) thymus gland
(Middle:) heart & pericardial sac
(Posterior:)
-Descending aorta
-Thoracic duct
-Esophagus
-Vagus nerves
-Azygos system of veins
-Greater sphlanchnic nerve
-intercostal vessels

Front 20

Nerve supply to Nasal cavity

Back 20

CN I (olfactory): Special sensory

CN V1: (sensory) ethmoid, sphenoid, & frontal sinuses; superior & middle conchae

CN V2 (sensory) maxillary sinus, palate & inferior concha

Parasympathetic: from facial nerve; preganglionic fibers in greater petrosal n (postganglionic after pterygopalatine ganglion)

Symmpathetic: postganglionic fibers in deep petrosal nerve

Front 21

Nerve supply to salivary glands

Back 21

(Parasympathetic)
Parotid: CN IX (Glossopharyngeal n.)
Submandibular & Sublingual: CN VII (chorda tympani branch)

(sympathetic)
motor fibers from carotid plexus for vasoconstriction

Front 22

Nerve supply to Lacrimal gland

Back 22

lacrimal nerve (CN V1) (sensory), the great petrosal nerve (CN VII) (parasympathetic);
sympathetic nerves accompanying the lacrimal artery and the lacrimal nerve.

Front 23

Surface Anatomy of right Lung

Back 23

-Three lobes, 10 segments
-oblique fissure
-horizontal fissure (superior, divides upper from middle)

Front 24

Surface Anatomy of left Lung

Back 24

-Two lobes, 8 segments
-oblique fissure
-cardiac notch
-lungula
-cardiac impression/grooves

Front 25

Surface anatomy on both lungs

Back 25

oblique fissure
apex & base
hilum
visceral pleura

Front 26

Respiratory Tree

Back 26

Primary (main stem) bronchi
Secondary (lobar) bronchi
Tertiary (segmental) bronchi
Terminal bronchioles (branches of segmental bronchi)
Respiratory bronchioles (contain alveoli)
Alveoli (single cell in thickness; organized in clusters; surrounded by dense capillary network)

Front 27

Main stem Bronchi differences

Back 27

Right: larger diameter, shorter, more vertical

Left: smaller diameter, longer, less vertical

Front 28

Subdivisions of Pharynx

Back 28

Nasopharynx
Oropharynx
Laryngopharynx

Front 29

Contents of Nasopharynx

Back 29

choanae
pharyngeal tonsils
torus tubaris
pharyngeal recess

Front 30

Contents of Oropharynx

Back 30

Palatoglossal fold,
Median & Lateral glossoepiglottic folds,
Valleculae

Front 31

Contents of Laryngopharynx

Back 31

Laryngeal aditus
cricoid cartilage
piriform recesses