Neuro anatomy

Question 0

Part of the nervous system that includes brain and spinal cord

Answer 0

CNS

Question 1

Define Neuro Anatomy

Answer 1

Nerves transmit electrical impulses
Greater frequency equals greater stimulus
Timing of impulses determine coordination

Question 2

Connects CNS to limbs and organs

Answer 2

PNS

Question 3

Two subsystems of Autonomic Nervous System

Answer 3

Sympathetic and parasympathetic

Question 4

From T1 to L3
maintains homeostasis
fight or flight response

Answer 4

Sympathetic nervous system

Question 5

Responsible for regulations of internal organs and glands

sexual arousal salivation lacrimation(tears), urination, digestion, and defecation

Answer 5

Parasympathetic nervous system

Question 6

Voluntary nervous system

control of body movements via muscles except reflex

Answer 6

Peripheral nervous system

Question 7

Sensory neurons

Answer 7

Afferent

Question 8

Motor neurons

Answer 8

Efferent

Question 9

Surrounds whole nerve

Answer 9

Epineurium

Question 10

Around a bundle of nerves

Answer 10

Perineurium

Question 11

Around each neuron

Answer 11

Endoneurium

Question 12

Virus transported along nerves the skin then to the dorsal ganglion where it becomes latent and resides for life

Answer 12

Herpes

Question 13

Conducts impulse away from CNS to muscle

Answer 13

Efferent neuron

Question 14

Conducts impulses originating in the sensory organs toward CNS

Answer 14

Afferent neuron

Question 15

Also called Neurolemmocytes;develop myelin

Answer 15

Schwann cells

Question 16

Developed from Schwann cells
fatty material surrounding the axon
insulation and speeds conduction

Answer 16

Myelin

Question 17

Chronic demyelinating disease
prohibits normal conduction
affects more women than men

Answer 17

Multiple Sclerosis

Question 18

When the neuron is polarized

Answer 18

Resting potential

Question 19

When a stimulus reaches a resting neuron

Answer 19

Action potential

Question 20

ion channels open to allow the potassium to move outside; the membrane restores electrical balance

Answer 20

Nerve transmission

Question 21

Chemical regrouping stimulus will not arouse a response during this time

Answer 21

Refractory period

Question 22

Permits a neuron to pass an electrical signal to another neuron(pre and post synaptic membrane)

Answer 22

The synapse

Question 23

Injury to the cell body is likely to cause

Answer 23

death of a neuron

Question 24

Reduction of neurons that make dopamine

Answer 24

Parkinsons Disease

Question 25

Near body surface; recieves signals from outside the body

Answer 25

Exteroceptors

Question 26

Cutaneous sensors that detect stimulus within the body

Answer 26

interoceptors

Question 27

Receives impulses from viscera about internal environment

Answer 27

Visceroceptors

Question 28

Receives impulses about relative body position;

Answer 28

Proprioceptors

Question 29

Knowing where you are in space

Answer 29

Kinesthesia

Question 30

Parallel to the muscle’s fibers. Sensitive to stretch which stimulates contractions

Answer 30

Muscle spindle

Question 31

Opposite of muscle spindle; sensitive to tension; initiates inhibition of contraction

Answer 31

Golgi Tendon Organ

Question 32

Located under skin and joint capsule; sensitive to pressure deformation, vibration

Answer 32

Pacinian Corpuscles

Question 33

Fundamental unit of neuromuscular contraction

Answer 33

Motor Unit