Anatomy - Kaplan

Question 1

Layers of the anterior abdominal wall

Answer 1

Skin
Camper (fat) fascia
Scarpa (fibrous) fascia
EOM
IOM
TAM
Transversalis fascia
Parietal peritoneum

Question 2

Abdomen…is the aorta on the R or L of the IVC?

Answer 2

LEFT

Question 3

Innervation AND end organ for the…

• Ciliary ganglion
• Pterygopalatine ganglion
• Sphenopalatine ganglion
• Otic ganglion

What are these?

Answer 3

Ciliary = CN3 (sphincter pupillae, ciliary m)
Pterygopalatine = CN 7 (lacrimal gland)
Sphenopalatine = CN 7 (submandibular and sublingual glands)
Otic = CN 9 (parotid gland)

PARASYMPATHETICS

Question 4

Carotid baroreceptor afferent

Aortic baroreceptor afferent

Answer 4

CN 9

CN 10

Question 5

Functions of CN 9

Answer 5

• Afferents for carotid baroreceptor and carotid chemoreceptor (carotid body)
• Efferent for stylopharyngeus
• Somatic sensory afferent for posterior pharynx, eustachian tube, middle ear, posterior 1/3 of tongue
• Taste from posterior 1/3 of tongue
• Parasympathetic to otic ganglion (parotid gland)

Question 6

Arterial supply to the bladder (superior and inferior)

Answer 6

Superior vesicle arteries (via umbilical a via internal iliac a)
Inferior vesicle arteries (via internal iliac aa directly)

Question 7

Internal rotation of the arm…what muscle?

Innervation?

Answer 7

Subscapularis

Upper and lower subscapular nn

Question 8

Patient faints during ear exam…why?

Answer 8

Posterior wall of external ear canal has innervation from auricular branch of vagus nerve

Question 9

Bulging of the superior cerebellar artery may cause deficit in which nerve?

Answer 9

CN 3 (comes out above the pons between the PCA and the superior cerebellar artery)

Question 10

Cerebellopontine angle…nerves?

Posterior olivary sulcus…nerves?

Answer 10

VII, VII

IX, X

Question 11

Hypothalamus…

• Lateral area
• Ventromedial area
• Anterior
• Posterior
• Suprachiasmatic
• Supraoptic
• Paraventricular

Answer 11

Lateral = Hunger (ghrelin stim, leptin inhib)
VM = Satiety (leptin stim)
Anterior = Cooling, PSNS
Posterior = Heating, SNS
Suprachias = Circadian rhythm
Supraoptic = ADH
Paravent = Oxytocin

Question 12

Thalamus…

• VPL
• VPM
• LG
• MG
• VL

Answer 12

VPL = STT, ML
VPM = TL, Gustatory
LG = Vision (via CN2)
MG = Hearing (via superior olive, inf. colliculus)
VL = Motor (via basal ganglia, cerebellum)