PNS (for first exam)

Question 1

Part of NS DISTAL to spinal nerves and NOT ENCLOSED BY BONE

Answer 1

PNS

Question 2

Part of spinal nerve providing motor innervation to deep back muscles and sensory to joint capsules and ligaments

Answer 2

Dorsal primary rami

Question 3

Part of spinal nerve that form plexi asside from thoracic region where they stay segmental

Answer 3

Ventral primary rami

Question 4

List the 4 plexi

Answer 4

Cervical, Brachial, Lumbar and Sacral

Question 5

Peripheral nerve fiber traveling from receptor to CNS

Answer 5

Afferent fiber

Question 6

Peripheral nerve fiber traveling from CNS to target tissue

Answer 6

Efferent fiber

Question 7

Membrane surrounding the entire axon

Answer 7

axolemma

Question 8

membrane surrounding the myelin sheath

Answer 8

Neurilemma

Question 9

CT around each nerve fiber containing blood vessels that supply oxygen and nutrients

Answer 9

Endoneurium

Question 10

Myelin that surrounds axons but DOES NOT WRAP CONTINUOUSLY WRAP AROUND AN INDIVIDUAL AXON occurs in what type to neuron?

Answer 10

Unmyelinated neuron

Question 11

Myelin wrapping around in multiple layers around an axon in what type of neuron

Answer 11

Myelinated

Question 12

CT that surrounds bundles of nerve fibers

Answer 12

Perineurium

Question 13

CT that surrounds entire nerve

Answer 13

Epineurium

Question 14

compression of any peripheral nerve will cause paresthesia in that distribution only with what type of nerve

Answer 14

Peripheral cutaneous nerve innervation

Question 15

somatic recepters that detect pain, temperature and fine touch

Answer 15

exteroceptors

Question 16

somatic receptors that sense joint position, knesthetic awareness, vibration, muscle length and muscle tension, skin movements, deep pressure

Answer 16

proprioceptors

Question 17

exteroceptors in skin that detect PAIN, TICKLE, ITCH ,TEMPERATURE (associated with AXON REFLEX - heat stimulates vasodilation)

Answer 17

Free nerve endings

Question 18

Proprioceptors in skin that detect joint angles at EROM, continuous tretch of skin (interconnected with collagen)

Answer 18

Ruffini Endings

Question 19

Responsible for superficial touch

Answer 19

Hair follicle receptor organs

Question 20

Exteroceptors in skin that detect TOUCH, LIGHT PRESSURE, AND COLD SENSATIONS

Answer 20

Krause end bulbs

Question 21

Exteroceptor in skin that detects MOVING 2 POINT DISCRIMINATION AND LOW FREQUENCY VIBRATION

Answer 21

Meissner’s corpuscles

Question 22

Proprioceptor in skin that detects PRESSURE AND HIGH FREQUENCY VIBRATION

Answer 22

Pacinian corpuscles

Question 23

Exteroceptor that detects TEXTURE, LOCALIZED TOUCH (semmes-weinstein filament), AND STATIC 2 POINT DISCRIMINATION

Answer 23

Merkel’s disc

Question 24

Area of skin innervated by single afferent neuron that tends to be smaller distally in extremities

Answer 24

Receptor Fields

Question 25

Reflex (stoke on heel, 5th metatarsal, and heads); inhibited in infancy

Answer 25

Babinski

Question 26

Reflex stroking down medial side of tibia causes 1rst toe extension

Answer 26

Oppenheim

Question 27

Reflex with stroke along lateral ankle/lateral aspect of foot causes 1rst digit extension

Answer 27

Chaddock