A&P: Chapter 12 Exam Review

What is the spinal cord an extension of?

• the brain

• the heart

• the liver

• the lungs

Match the parts of a neuron with their function:

• receive information from other neurons

• Dendrite

• connects the neuron with its target

• Soma

• cell body that contains the nucleus

• Axon

White matter is made up of ___.

• Myelinated axons

• Neuron cell bodies

• Glial cells

• Blood vessels

White matter is made up of __________________.

• Myelinated axons

• Neuron cell bodies

• Glial cells

• Blood vessels

Gray matter is made up of __________________.

• a lot of myelinated axons

• few or no myelinated axons

• glial cells

• blood vessels

What is a ganglion and where is it normally found?

• localized collection of neuron cell bodies in the central nervous system

• localized collection of neuron cell bodies in the peripheral nervous system

• bundle of axons in the central nervous system having the same function and point of origin

• bundle of axons in the peripheral nervous system having the same function and point of origin

T/F: Bundle of axons in CNS is called a ganglion. 

• False

• True

Answer explanation

False: Bundle of axons in CNS is called a tract. 

The function of a neuron is:

• communication and computation

• to store nutrients

• to produce hormones

• blood supply to the brain

What is a node of ranvier/what does it do?

•  gap in the myelin that covers axon

• strengthens electrical signal as it propagates down the axon

• provides the myelin insulation for axons in tracts

• extension of a cell body

Organize the responses into their corresponding systems:

Groups:

(a) Enteric nervous system

,

(b) Autonomic nervous system

,

(c) Somatic nervous system

• Heart rate

• responsible for homeostatic reflexes that coordinate control

• Talking

• Digestion

• Reflexes

• Walking

• Vomiting

• Breathing

• concerned with conscious perception, voluntary movement, and skeletal muscle reflexes

• controls the digestive system

Tags

NGSS.HS-LS1-2

NGSS.HS-LS1-3