Anatomy & Physiology

Question 1

LOCUS CERULEUS
Loc
Secret
Fx

Answer 1

LOCUS CERULEUS
posterior rostral Pons -pigmented nucleus
NOREPINEPHRINE
Fx Mood/ Arousal / sleep wake/ SNA

bilateral pontine hemorrhage —> COMA (xSARA)

Question 2

Embolic Stoke
-> Initial Right numbness and paresthesia

?

Answer 2

Left PRIMARY SOMATO SENSORY CORTEX

Postcentral

Question 3

-----THALAMUS-------
Spinothalamic and Dorsal columns 
-
Trigeminal and gustatory pathway
- 
CN II, Optic
- 
supeior olive, hearing
-
cerebellum, basal ganglia

Answer 3

Spinothalamic and Dorsal columns 
--> Ventral PosteroLATERAL 
Trigeminal and gustatory pathway
--> Ventral posterioMEDIAL
CN II, Optic
--> lateral geniculate
supeior olive, hearing
-->medial geniculate
cerebellum, basal ganglia
--> ventral lateral

Question 4

Clinical Reflexes 
Triceps
Biceps
Cremasteric 
Anal
Patelar
Achilles

Answer 4

Triceps: C6 C7
Biceps: C5 C6
Cremasteric:  L1, L2
Anal: S3, S4
Patelar: L3, L4
Achilles: S1, S2

Question 5

TONGUE INERVATION

• TASTE
• PAIN
• MOTOR

Answer 5

TASTE
2/3 Ant: Chorda Tympani (VII-Facial)
1/3 Post: IX
Root: X

PAIN
2/3 Ant: MANDIBULAR brunch of V - trigeminal
1/3 Post: IX
Root: X

MOTOR:
Hypoglosal XII-
genio-saca
stylo- U
(except- Palatoglossal_ X)