The Nervous Test

Question 0

Meninges

Answer 0

Three layers of protective tissue in the brain and spinal cord
(Dura matter, arachnoid matter, and pis matter) in the brain and spinal cord

Question 1

Brainstem

Answer 1

Responsible for involuntary actions such as breathing and heart rate
Also sends information from PNS to the brain

Question 2

Cerebral spinal fluid

Answer 2

Fluid found in the meninges that cushions the brain and spinal cord. Blood vessels provides nourishment and removes waste from the spinal cord

Question 3

Paralysis

Answer 3

Loss of muscle function for one or more muscles. Mostly due to injury to nervous system

Question 4

CNS

Answer 4

Interneurons

Consists of the spinal cord and brain

Question 5

PNS

Answer 5

Two divisions sensory and motor

Question 6

Motor division

Answer 6

Motor neurons
Somatic devoid system
Autonomic nervous system
Reflex

Question 7

Somatic nervous system

Answer 7

Motor neurons in this division carry out voluntary movements

Question 8

Autonomic nervous system

Answer 8

Motor neurons in this division carry out involuntary actions

Question 9

Reflex

Answer 9

An unconscious response to a stimulus such as pupil dilation, knee-jerk, ect.

Question 10

Stimulus

Answer 10

What causes the nervous system to respond

Question 10

Receptor

Answer 10

What receives the stimulus

Question 10

Effector

Answer 10

What responds to the stimulus (always a muscle or gland)

Question 10

Dendrites

Answer 10

Takes signals to cell body

Question 10

Cell body

Answer 10

Houses the nucleus and other organelles

Question 10

Axon

Answer 10

Takes signals/impulses away from cell body

Question 10

Synapse

Answer 10

Space between neurons

Question 10

Myelin

Answer 10

Substance that covers the axon; speeds up impulse and protects axon

Question 10

Sensory neuron

Answer 10

Picks up internal or external stimuli and coverts it to a nerve

Question 10

Interneuron

Answer 10

Brain/spinal cord. Takes impulse and interprets it, decided if further action should be taken, then sends a message

Question 11

Motor neuron

Answer 11

Sends impulse to a muscle or gland, the muscle contracts or releases a hormone

Question 12

Gray matter

Answer 12

Cell body

Question 13

White matter

Answer 13

Axon

Question 14

Cerebrum

Answer 14

Responsible for thought, feelings, learning, ect.

Question 15

Cerebellum

Answer 15

Responsible for coordination of movements and balance

Question 16

Cerebrospinal fluid

Answer 16

Found in the meninges. It cushions the brain. Blood vessels nourish and remove waste

Question 17

Reflex pathway

Answer 17

Sensory neuron--> Interneuron in spinal cord--> motor neuron

Question 18

Pathway impulse takes down neuron

Answer 18

Dendrite-->cell body-->axon-->axon tip-->synapse-->dendrite of another neuron or a muscle or gland

Question 19

Pathway impulse takes from stimulus to effector

Answer 19

Stimulus-->receptor-->sensory neurons-->Interneurons-->motor neurons-->effector

Question 20

Pathway of light through the eye

Answer 20

Cornea-->aqueous humor-->pupil-->lens-->vitreous humor-->retina--> optic nerve

Question 21

Sclera

Answer 21

Tissue that makes up outer surface of the eye

Question 22

Iris

Answer 22

Eye color. Muscle in the iris regulates the size of the pupil do it regulates amount of light coming into the eye

Question 23

Cornea

Answer 23

Protection and initial focus of light coming into eye

Question 24

Pupil

Answer 24

Opening in the center if the eye of the iris that's let's light interior of the eye

Question 25

Lens

Answer 25

Located behind the pupil and is responsible for flipping the image (upside down) before it reacted the retina

Question 26

Retina

Answer 26

Back of eye. The receptor cells cons and rods Cones: light and being able to see at night Rods: color vision

Question 27

Optic nerve

Answer 27

Sensory neuron in eye that brings information to the brain

Question 28

Aqueous humor

Answer 28

Supplies lens, iris, and cornea with nutrients and oxygen, carried off waste

Question 29

Vitreous humor

Answer 29

Chamber behind the lens. Substance that gives the eye it's shape

Question 30

Gray matter

Answer 30

Cell body

Question 31

White matter

Answer 31

Axon

Question 32

What is the spinal cord composed of?

Answer 32

Bundle of Interneurons

Question 33

Fight or flight

Answer 33

Autonomic