Lab 7 (Lab Exam 4) Flashcards
Includes the brain and spinal cord
CNS
Everything else besides brain and spinal cord
PNS
Non-conducting cells that make up a majority of the brain and spinal cord
Neuroglia or glial cells
Multiple neurons together
Nerve
Multiple neurons together
Nerve
Nerves that contain both sensory and motor information
Mixed nerves
Nerves that carry sensory information to the brain and spinal cord; goes out of the posterior region of the spinal cord
Sensory (afferent) nerves
Nerves that control the effectors (muscles, glands, internal organs); leaves the PNS and goes out of the anterior region of the spinal cord
Motor (efferent) nerve
Neuron found in general sensory areas
Unipolar neuron
Creates the myelin sheath
Schwann Cell
Neurons that make connections between different neurons in the brain and spinal cord
Association neuron or interneuron
Surrounds the entire nerve
Epineurium
Surrounds the fascicles
Perineurium
Surrounds each neuron
Endoneurium
Sense of smell
Olfactory
Vision
Optic
Innervates intrinsic and extrinsic eye muscles
Oculomotor
Superior oblique muscle control
Trochlear
Chewing muscle control, teeth, lips, eyelids sensory
Trigeminal
Moves lateral rectus muscle
Abducens
Taste reception, facial expression
Facial
Balance and hearing
Vestibulocochlear
Swallowing, being able to control blood pressure, posterior tongue taste
Glossopharyngeal
Viscera sensory and motor information of internal organs
Vagus
Skeletal muscles of pharynx, larynx, sternocleidomastoid, trapezius
Accessory
Tongue movement
Hypoglossal
Bending of light
Refraction
Changing the lens shape
Accommodation
Nearsightedness; can’t see far
Myopia
Farsightedness; can’t see close
Hyperopia
Abnormal curvature of the cornea/lens
Astigmatism
Natural aging of the eye
Presbyopia
