Block 1 anatomy

Question 1

Neurohypophysis

where does it come from?

Answer 1

posterior pituitary

Infundibulum (diencephalon)

Question 2

adenohypophysis

where does it come from?

Answer 2

anterior pituitary

Rathke’s pouch, hard palate of mouth (ectoderm)

Question 3

3 main cortecies supplied by the middle cerebral artery

Answer 3

Inferior fronal gyrus (broca’s area)

Precentral gyrus (motor)

Postcentral gyrus (sensory)

Question 4

What foramen does the middle meningeal artery run through?

Answer 4

Foramen spinosum

Question 5

Where is the trabecular network in the brain

Answer 5

between the arachnoid mater and the pia mater

Question 6

Large CSF containing space between the cerebellum and the medulla; located immediately above the foramen magnum

Answer 6

Cisterna magna

Question 7

Primary olifactory area of the brain?

Answer 7

Parahippocampal gyrus

Question 8

Sympathetic ganglia of the head

What do the ganglia contain?

Answer 8

Superior cervical ganglion

Middle cervical ganglion

Inferior cervical ganglion (stellate ganglion)

Contain cell bodies of post-ganglionic neurons

Question 9

Parasympathetic ganglia of the head

contain what?

Answer 9

Ciliary ganglion (innervated by CN III) - constricts pupil

Pterygopalatine ganglion (innervated by CN VII)

Submandibular ganglion (innervated by CN VII)

Otic ganglion (innervated by CN IX) - involved in production of saliva

Contain cell bodies of post-ganglionic neurons

Question 10

What nerve is responsible for taste sensation in the anterior 2/3 of the tongue, and what cranial nerve does it branch from?

Answer 10

Chorda tympani, branch from the facial nerve. (upstream is the genticulate ganglion)

Question 11

Nerve responsible for sensation of feel on the anterior 2/3 of the tounge?

Answer 11

Lingual nerve, branch of the mandibular branch of the trigeminal.

Question 12

What nerve innervates the lateral and medial pterygoid muscles?

Answer 12

mandibular branch of trigeminals

Question 13

What does the lateral pterygoid muscle do?

Answer 13

protrudes and depresses the mandible

Question 14

What type of fibers are found accompanying the sensory fibers in the auriculotemporal nerve?

Answer 14

postganglionic parasympathetic neurons (that came from the otic ganglion and innervate the parotid gland)

Question 15

The inferior alveolar artery is a branch of the…

Answer 15

Maxillary artery

Question 16

what nerve innervates the anterior belly of the digastric muscle

Answer 16

mylohyoid

Question 17

What nerve innervates the posterior belly of the digastric and is derived from the second pharyngeal arch?

Answer 17

Facial

Question 18

Taste fibers. Where they come from, and each place they go.

Answer 18

Taste fibers have their cell bodies in the genticulate ganglion, run down the facial nerve, then branch off into the chorda tympani. The chorda tympani then joins the lingual nerve and goes to the taste buds.

Question 19

Submandibular ganglion contain what that supply what?

neurons come form where?

Answer 19

cell bodies of post-ganglionic parasympathetic nervous system, supply submandibular gland and sublingual gland.

Come from facial nerve.

Question 20

In what ganglion do preganglionic parasympathetic neurons associated with the chorda tympani terminate?

Answer 20

Submandibular ganglion

Question 21

Which of the following types of neurons are found in the chorda tympani?

Taste neurons and _________

Answer 21

Taste neurons and preganglionic parasympathetic neurons

Question 22

The whole nervous tract that innervates the parotid gland from start to finish.

Answer 22

Parasympathetic pre-ganglionic neurons in the glossopharyngeal nerve -> petrosal nerve -> Otic ganglion -> auriculotemporal nerve -> parotid gland

Question 23

what is papiledema

Answer 23

swelling of the optic disc

Question 24

Internal capsule:

What is medial to this anteriorly

What is medial to this posteriorly

Answer 24

Caudate nucleus is anterior

Thalmus is posterior

Question 25

What makes up the lentiform nucleus?

What is medial to this?

Answer 25

Putamen and globus pallidus.

Lenticulothalamic portion of the internal capsule