Visceral & Special senses

Where are the cell bodies of PARA fibers carried in CN III?

Accessory oculomotor nuc. (Edinger Westphal)

(In periaqueductal grey of midbrain)

Pre PARA fibers from CN III go into the orbit & synapse in the ___ ganglion

Ciliary

The ciliary ganglion contains cell bodies of ___ _______

Post PARA

What muscle is innervated by post PARA of CN III that constricts the pupil?

Sphincter pupilae

T/F: The greater petrosal n. carries only Post SYMP fibers

FALSE → Pre SYMP

T/F: The Greater petrosal n. leaves the facial n. at the geniculate gang, but does NOT synapse there

True

Where does the Greater petrosal n. synapse after going through the pterygoid canal?

Pterygopalatine ganglion (Post Symp)

Where are the cell bodies of Pre Para found for CN IX?

Inferior salivary nuc.

What fibers does the Lesser petrosal n. carry?

ONLY Pre PARA

Where does the Lesser petrosal n. synapse w/ post. PARA cell bodies

Otic gang.

Where are the cell bodies of pre PARA for CN X

Dorsal nuc. of Vagus

Post PARA from CN X have what effect when they innervate the heart?

Constrict coronary vessels

What nerve is the sup. 1/3 of the esophagus supplied by?

Recurrent laryngeal n.

What are Pre PARA from CN X carried in to reach the stomach?

Ant. & Post. vagal trunks

What type of fiber carries nociceptors to the appendix?

Post PARA CN X (pathway to Alimentary canal)

What are pre PARA from CN X carried in that synapse in the gallbladder, biliary tree, & pancreatic glands?

Hepatic plexus

The motor pathway to the kidneys from CN X carries what type of fibers?

Sympathetic ONLY

What type of information is within the Inferior hypogastric plexus?

Pre PARA (Pelvic splanchnic nn.)

T/F: The inferior hypogastric plexus carries PARA information ONLY

FALSE → PARA & SYMP

3

Accessory oculomotor nuc.

Top #4

Sup. salivary nuc.

Bottom #4

Inf. salivary nuc.

5

Post. nuc. of vagus

6

Lateral horn of S2,S3,S4

14

Pelvic splanchnic nn.

The liver, suprarenal glands, & kidneys are NOT supplied by what type of fibers?

MOTOR 

What primarily controls the uterus?

Hormonal (humeral)

T/F: ALL adjustments affect sympathetic functions

True

What segments make up the superior cervical gang.?

C2 & C3

What forms at the level of the coccyx?

Ganglion impar

Pre SYMP information to the head is carried from what cord levels?

T1 & T2

What is the circle enclosing?

Cervical SYMP gang.

10

Stellate gang.

15

Greater splanchnic n.

11 & 12

Celiac plexus (Pre & Post symp)

13

Inf. hypogastric plexus (pre & post symp)

Where does Pre SYMP info from T1-T4 cord levels innervate?

Heart

What levels of the sympathetic trunk brings SYMP info to the lungs?

T2-T4

What effect does SYMP from T2-T4 have?

Bronchodilate in the lungs

What cord levels bring Pre SYMP information to the abdominal viscera?

T5-T12

What level is the superior cervical gang. located?

C2/C3

80% of the time __ fuses with __ to form a stellate ganglion

Inferior cervical gang

T1 ganglion

What branch of the inferior cervical gang. sends branches to the subclavian a.?

Anterior branch

How many SYMP gang. are found in the lumbar trunk?

4

What is the largest prevertebral plexus?

Celiac plexus

What nerves contribute to the tympanic plexus & is presumed to be the structure that was affected with the adjustment Harvey Lillard received?

Caroticotympanic nn.

What is between L4 & S1 levels and includes sup hypogastric/inf mesenteric

Celiac plexus

1

Celiac gang.

2

Phrenic plexus

5

Inf. mesenteric gang

4

Sup. mesenteric gang

What structure is the bold lines pointing to?

Aorticorenal gang.

What structures make up the fibrous tunic?

Sclera & cornea

What is the transition between the sclera & cornea called?

Limbus

What is the primary refractory structure?

Cornea

What causes an astigmatism?

Irregularity in the shape of the cornea

What is the thickest layer of the cornea?

Substantia propria

What part of the vascular tunic has a rich blood supply?

Choroid

What are the 2 muscles of the iris?

1. Sphincter pupillae → PARA

2. Dilator pupillae → SYMP

Which tunic is an outgrowth of the diencephalon?

Nervous/retina

15 (TQ)

Pupil

12 (TQ)

Lens 

21

Retina

18 

Fibrous tunic

20

Vascular tunic

19

Ciliary body

11

Cornea

Green lines

Limbus

What fills the ant. segment of the eye and what is it secreted by?

Aqueous humor

Ciliary processes

What is the flow of aqueous humor?

Post. chamber → through pupil → ant. chamber → leaves via sclera venous sinus

What is it called when there is a loss of resiliency of the lens?

Presbyopia

14

Iris

7

Anterior chamber

18

Dilator pupillae

17

Sphincter pupillae

What structure is associated with glaucoma?

Aqueous humor

11

Pigmented layer

17

Rods & cones (receptors)

28

External limiting membrane

27

Outer nuclear layer

30

Outer plexiform layer

31

Inner nuclear layer

32

Inner plexiform layer

20a

Ganglion cell layer

20b

Nerve fiber layer

21

Internal limiting membrane

2

Superior rectus m.

3

Inferior rectus m.

4

Medial rectus m.

5

Lateral rectus (CN VI)

6

Superior oblique (CN IV)

8

Inferior oblique

What structure is responsible for draining tears into the inferior nasal meatus?

Nasolacrimal duct

What kind of gland are the tarsal glands?

Sebaceous (oil)

20

Lacrimal gland

23

Lacrimal ducts

24

Lacrimal sac

25

Nasolacrimal duct

11

Helix

12

Antihelix