Anatomy Test 4 Nervous, eyes ears and brain

basic functions of the nervous system?

monitor changes

respond to stimuli

process and interpret

Bundles of axon that connect regions of matter.

White Matter

Highly branched neurons that exchange.of information

Gray matter

Somatic Nervous system

Skeletal muscles regulation

controls voluntary activity

Autonomic Nervous system

Heart and blood pressure regulation

regulates the activity of the heart and smooth muscles

Smooth muscle regulation

What composes the Peripheral nervous system

spinal nerves

ganglia

cranial nerves

what composes Central nervous system

spinal cord

brain

A?

Sensory organ

B

Sensory neuron

C

Interneuron

E

Efferent neuron

D

Efferent organ

portion of the neuron increases the speed of the impulse transmission

Myelin Sheath

Portion of the neuron contains the nucleus

Cell Body

Gaps in the insulating myelin sheath that allow rapid rate of conduction called saltatory conduction

Nodes of Ranvier

Portion of the neuron conducts the signal away from the cell body

axon

portion of the neuron conducts the signal towards the cell body

Dendrite

neuroglia cell in the peripheral nervous system forms myelin sheaths

Schwann cells

neuroglia cell in the central nervous system disposes of dead cells, bacteria and clots

Microglia

neuroglia cell in the central nervous system forms myelin sheaths

Oligodendrocytes

neuroglia cell in the central nervous system helps circulate the cerebrospinal fluid

Ependymal Cell

Which of the following is the gap between the dendrite of one cell and the axon of another cell?

Synapse

Which of the following is the mane of the cells that support the transmitting cell of the nervous system?

Neuroglia

Which of the following is a cell that carries information to the  central nervous system?

Afferent (Sensory) neuron

Which of the following is a cell that carries instruction to target cells from the central nervous system?

Efferent (motor) Neuron

Which of the following is not an autonomic reflex but a somatic reflex?

Patella (knee jerk)

What part of the embryonic tissue does the neural tube derive from?

Ectoderm

part of your fight and flight system and is more commonly known as adrenaline

Epinephrine

for motor control and high levels improve focus and low levels cause anxiety

GABA

helps to regulate your mood and causes depression when it is in short supply

Serotonin

is used in nerves that activate muscles

Acetylcholine

inhibitory and is found in many drugs

dopamine

The difference between the grey matter and white matter is

different amounts of myelin

Very tough and means "tough mother"

dura mater

Is directly on the brain and contains blood vessels

pia mater

Is made of bone

cranium

Middle layer and encloses the brain loosly