ch. 24 spine
DESCRIPTION
Nerves. Ch. 24 Spine. Nervous System. Central nervous system Brain Spinal Cord Peripheral nervous system All other nerves . Nerve. Afferent or sensory nerve: carries impulses from sense organs to the brain Efferent or motor nerve: carries impulses from brain to muscles - PowerPoint PPT PresentationTRANSCRIPT
CH. 24 SPINENerves
NERVOUS SYSTEM Central nervous
system Brain Spinal Cord
Peripheral nervous system All other nerves
NERVE Afferent or sensory
nerve: carries impulses from sense organs to the brain
Efferent or motor nerve: carries impulses from brain to muscles
If it does both, it is called a mixed nerve
CRANIAL NERVES I: Olfactory-Smell II: Optic-Vision,
eyesight III: Oculomotor-
movement of eye muscle
IV: Trochlear-Movement of eye muscle
CRANIAL NERVES V: Trigeminal-Face
and teeth muscles, chewing
VI: Abducens-Movement of eye muscle
VII: Facial-Facial expressions, taste
VIII: Vestibulocochlear-Hearing and balance
CRANIAL NERVES IX: Glossopharyngeal-
Movement of throat muscle, taste
X: Vagus-Movement of throat; heart/digestive system
XI: Accessory-Movement of neck muscles
XII: Hypoglossal-Movement of tongue muscles
REFLEXES Simplest nerve
response Reflex is
unconscious and involuntary
Caused by a stimulus Sound Light Heat Odor
DEEP TENDON REFLEXES Biceps Triceps Brachioradiolis Patella Tendon Achilles Tendon