Fundamentals of Anatomy and Physiology

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The Nervous System: The Brain, Cranial Nerves, Autonomic Nervous System, and the Special Senses 259


Midbrain and nasal septumLacrimal gland^

Medulla^ Paravertebral (^) Eye
chain^
ganglion (^)
Parotid (^)
gland (^)
(^) Submandibular (^)
and sublingual (^)
salivary glands (^)
T1 Trachea (^)
T2 (^)
T3 Heart
T4 Lung^
T5 (^)
T6 Celiac ganglion^ Stomach^
T7


The Pancreas


(^)
T8
(^)
(^)
T9 Small intestine (^)
T10 Liver (^) Spleen
T11
(^)
(^)
T12 Adrenal gland (medulla)^
L1 (^)
L2 (^)
(^) Superior Large intestine (^)
mesenteric (^)
ganglion (^)
(^) Kidney (^)
(^) Inferior (^) ® (^)
mesenteric^
Learning^
ganglion
Urinary bladder
Cengage
(^)
and genitals (^)
©^
Figure 11- 5 The nerve pathways of the
sympathetic divi-sion of the autonomic nervous
system.
Ciliary ganglion
Cranial nerve III^
Midbrain^
Cranial (^) Medulla
nerve VII (^)
Pterygopalatine (^)
ganglion (^)
Submandibular (^)
ganglion (^)
Cranial (^)
nerve IX (^)
(^) T1 (^)
Otic ganglion^ T2
Cranial nerve X (^) T3
(vagus) (^)
Lung T4^
Heart
T5 (^)
T6
(^)
(^) T7 (^)
Liver^ T8^
(^) T9 (^)
Stomach^ T10^
Spleen T11^
Pancreas T12^
Small intestine^ L1^
(^) L2 (^)
Large intestine (^)
Kidney (^)
(^) S2 (^)
Urinary (^)
bladder and
S3
genitals
Pelvic nerves
S4 (^)
(^) ®
Learning
Cengage ©
the brain to the back) and by names that indicate their
function or distribution. Some cranial nerves are only
sensory or afferent; others are only motor or efferent.
Cranial nerves with both sensory and motor functions are
called mixed nerves (Figure 11 - 7).
The olfactory nerve (I) is entirely sensory and con-
veys impulses related to smell. The optic nerve (II) is also
Figure 11- 6 The nerve pathways of the
parasympathetic division of the autonomic nervous
system.
entirely sensory and conveys impulses related to sight. The
oculomotor nerve (III) is a motor nerve. It controls
movements of the eyeball and upper eyelid and con-veys
impulses related to muscle sense or position called

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