Brain and Cranial nerves

Question 1

name all the parts coloured

Answer 1

blue- telencephalon or cerebrum, orange- thalamus or diencephalon, yellow- tentorium cerebelli

Question 2

name all the parts

Answer 2

orange- olfactory bulb tracts, green- frontal, red- parietal, off white- temporal, purple- occipital

Question 3

where is vision consciously perceived?

Answer 3

occipital lobe

Question 4

which cranial nerves are involved in the menace response?

Answer 4

optic nerve, facial nerve

Question 5

which side of the brain coordinates the menace response? (ipsi or contralateral)

Answer 5

contralateral

Question 6

what is the function of the ophthalmic branch of the trigeminal nerve?

Answer 6

sensory- to the eyelid, eyeball, nasal mucosa, and skin of nose

Question 7

what is the function of the maxillary branch of the trigeminal nerve?

Answer 7

sensory- to upper eyelid, upper teeth, nasal mucosa, upper lip, and noce

Question 8

what is the function of the mandibular branch of the trigeminal nerve?

Answer 8

motor- muscles of mastication- masseter, temporalis, pterygoids, rostral digastrictus, tensor levity palatini. sensory- lower face

Question 9

what is the function of the oculomotor nerve?

Answer 9

innervate most of the extraocular muscles and the upper eyelid, parasympathetic nervation to control the iris (constriction)

Question 10

label all the coloured parts

Answer 10

dark green- midbrain, blue- pons, light green- MO, turquoise- spinal cord.

Question 11

which cranial nerve comes from the pons?

Answer 11

trigeminal

Question 12

what is the function of the trochlear nerve?

Answer 12

motor to dorsal oblique extraocular muscle, only nerve that completely crosses to the contralateral side and only nerve that comes from the brainstem dorsally.

Question 13

where does the sympathetic innervation to the eye come from?

Answer 13

tectotegmental spinal tract- from thalamus, down to c6-T2, then up the sympathetic trunk

Question 14

what is the function of the abducent nerve?

Answer 14

motor- lateral extraocular and abducens mm

Question 15

what is the function of the facial nerve?

Answer 15

motor- facial expression, closing the eye, caudal digastricus m plus others, parasympathetic- tear production, mandibular and sublingual salivary glands, and glands of the oral and nasal mucosa. special taste sensation of the palate and rostral 2/3 of tongue

Question 16

what is the function of the vestibulocochlear nerve?

Answer 16

balance, hearing- sensory nerve

Question 17

what nerves are in the nucleus ambiguus?

Answer 17

IX, X, XI

Question 18

what is the function of the glossopharyngeal nerve?

Answer 18

motor to pharynx and palatine structures, sensory to caudal 1/3 of tongue, parasympathetic to parotid and zygomatic salivary glands

Question 19

what is the function of the vagus nerve?

Answer 19

motor to larynx, pharynx and oesophagus, sensory to larynx, pharynx, thoracic and abdominal viscera, parasympathetic to thoracic and abdominal viscera.

Question 20

what is the function of the hypoglossal nerve?

Answer 20

motor to tongue and