Chapter 11 Nervous System Part 2 Flashcards
Olfactory Nerve Roman Number & its Function
I (one)
-Sensory Nerve SN
Sense of smell
Oculomotor Nerve Roman Number & its Function
III (three)
Motor Nerve MN
-muscles of the eyeball
Trochlear Nerve Roman Number & its Function
IV (four)
Motor Neuron MN
-muscles of eyeball
+ it conducts motor impulses to fifth pair of external eye muscles
Abducens Nerve Roman Number & its Function
VI (six)
Motor Nerve MN
-External Eye movement
Vestibulocochlear Nerve Roman Number & its Function
VIII (eight)
Sensory Nerve SN
-Hearing and Equilibrium aka balance
Hypoglossal Nerve Roman Number & its Function
IIX (twelve)
Motor Nere MN
-Muscles of the Tongue
Accessory Nerve Roman Number & its Function
IX (eleven)
Motor Nerve MN
spinal accessory Cranial & Spinal Branch
Neck and Shoulders
-Cranial Branch: impulses to pharynx, larynx chewing?
-Spinal Branch: impulses to neck and back
Optic Nerve Roman Number & its Function
II (two)
-Sensory Nerve SN
-Vision
Trigeminal Nerve Roman Number & its Function
v (five)
Sensory Nerve SN
Facial sensation
Forehead, gums, teeth, jaw, lips
Facial Nerve Roman Number & its Function
VII (seven)
Mixed Nerve MiN
-Facial expression / movement
-taste
Glossopharyngeal Nerve Roman Number & its Function
IX (nine)
Mixed Nerve MiN
Tongue Pharynx, tonsils
aka back of tongue 1/3 thingy bs
Salivary Gland and Swallowing
Vagus Nerve Roman Number & its Function
X (ten)
Mixed Nerve MiN
Cranial Nerves that extend BEYOND Head & Neck
-Swallowing, talking, couching
-heart rate, digestion, glandular secretion
What is the meninges?
membranes that protect brain and spinal cord;
they lie between the bone and soft tissues of nervous system
aka the plastic wrap
Describe the THREE layers of the meninges
Superficial to Deep
Dura Mater: Most outer Layer
-Tough/dense
-Venous Drainage for blood to leave the brain
Arachnoid Mater
-Like a SPIDER Web suspends the brain in the skull
aka less jiggling
-less dense
Pia Matter: Deepest layer like SHRINK wrap
-HOLDS Blood Vessels and Nerves
-attached to BRAIN & SPINAL CORD
what is the Dura Mater in between?
Skull and Arachnoid Mater