Modalities of the cranial nerves

Question 1

sensory (afferents) modalities

Answer 1

general somatic sensory
general visceral sensory
special somatic sensory
special visceral sensory

Question 2

motor (efferents) modalities

Answer 2

vernal somatic motor
general visceral motor
special vision motor

Question 3

General somatic sensory (GSS)

Answer 3

– general sensation from skin.

Question 4

General visceral sensory (GVS)

Answer 4

– general sensation from viscera.

Question 5

Special somatic sensory (SSS)

Answer 5

– senses derived from ectoderm (e.g. sight, sound, balance).

Question 6

Special visceral sensory (SVS)

Answer 6

– senses derived from endoderm (e.g. taste, smell).

Question 7

General somatic motor (GSM)

Answer 7

– skeletal muscles movement

e. g. trapezius and SCM
e. g. intrinsic and extrinsic tongue muscles
e. g. extra ocular eye muscles

Question 8

General visceral motor (GVM)

Answer 8

– smooth muscles of gut and autonomic motor.

e.g. pupillary eye reflex

Question 9

Special visceral motor (SVM)

Answer 9

– muscles derived from pharyngeal arches.

e.g. muscles of mastication and facial expression, stylopharangeus, muscles of pharynx and larynx