Nervous System Structures

anterior horn

Posterior Horn

Gray Commissure

Gray Matter

White Matter

Dorsal Root Ganglion

Ventral Root

Central Canal

Epidural Space

Dura Mater

5

Arachnoid Mater

4

Subarachnoid Space

Pia Mater

3

Cervical Plexus

Phrenic Nerve

Brachial Plexus

Lumbar Plexus

Sacral Plexus

Musculocutaneous Nerve

Ulnar Nerve

Median Nerve

1.

Radial Nerve

Femoral Nerve

Sciatic Nerve

Tibial Nerve

Peroneal Nerve

Cauda Equina

Filum Terminale

Sympathetic Chain

Collateral Ganglia

Splanchnic Nerves

Cerebellum

a large structure of the hindbrain that controls fine motor skills

Arbor Vitae

white matter of the cerebellum

Lateral Ventricles

ventricles found in each cerebral hemisphere

Third Ventricle

inferior to the corpus callosum

Fourth Ventricle

becomes continuous with the central canal of the spinal cord

Cerebral Aqueduct

connects the third and fourth ventricles

Cerebral Hemispheres

the right and left halves of the cerebrum

Longitudinal Fissure

separates cerebral hemispheres

Transverse Fissure

separates cerebrum from cerebellum

Frontal Lobe

a region of the cerebral cortex that has specialized areas for movement, abstract thinking, planning, memory, and judgement

Parietal Lobe

a region of the cerebral cortex whose functions include processing information about touch

Temporal Lobe

a region of the cerebral cortex responsible for hearing and language

Occipital Lobe

a region of the cerebral cortex that processes visual information

Pineal gland

produces melatonin

Thalamus

relays messages between lower brain centers and cerebral cortex

Hypothalamus

-a neural structure lying below the thalamus

-directs eating, drinking, body temperature

Infundibulum

a stalk that attaches the pituitary gland to the hypothalamus

Pituitary Gland

endocrine gland at the base of the brain

Optic Chiasma

where optic nerves cross

Optic Tract

leads from optic chiasma to the thalamus

Mammillary Body

one of a pair of limbic system structures that are connected to the hippocampus

Midbrain

a small part of the brain above the pons that integrates sensory information and relays it upward

Corpora Quadrigemina

located in the midbrain; contains reflex centers for visual and auditory reflexes

Superior Colliculi

visual reflexes

Inferior Colliculi

auditory reflexes

Pons

a brain structure that relays information from the cerebellum to the rest of the brain

Medulla Oblongata

the posterior part of the brain that controls the rate of breathing and other autonomic functions

Sympathetic Ganglia

axillary nerve

TOP arrow

ulnar nerve

2

axillary nerve

3

radial nerve

4

musculocutaneous nerve

5