BIO 168 Mastery Pack: Anatomy & Physiology I
Made Simple for Exam Success
A neuron has a cell body and cell processes called _____and_____ - Answer- axon and
dendrites
The enlarged part of the neuron that contains the nucleus and and other cellular structures
is the cell______ - Answer- body, soma, or perikaryon
What is a function of the nervous system? - Answer- Coordinate all other body functions
Neurons have processes called ______that receive signals from other neurons. - Answer-
dendrites
The flow of information in the nervous system involves which three components? - Answer-
Brain and spinal cord; Effectors for motor output; Sensory receptors
What type of process is typically more abundant in a neuron? - Answer- Dendrite
The size and shape of neurons ______. - Answer- varies
Where are axon terminals located? - Answer- At the ends of axons
Which part of the neuron contains its nucleus, as well as mitochondria, lysosomes, and a
Golgi apparatus? - Answer- cell body
Where is a synaptic cleft located? - Answer- between a synaptic knob and another cell
1|Page
, BIO 168
Where is the synaptic knob found? - Answer- at the end of an axon terminal
Dendrites are branches off of the ______ that function to ______. - Answer- neuron cell
body; receive incoming signals
Axonal transport is the movement of ______ up and down the ______. - Answer- proteins
and organelles; axon
A neuron has only one _____but can have many ______. - Answer- axon; dendrites
The myelin in the myelin sheath of a neuron is a substance that consists of ______. -
Answer- proteins and lipids
The end of an axon may have many fine extensions, each with a specialized ending called
an axon________ - Answer- terminals or terminal
The synaptic knob of one neuron and the receptive surface of another cell are separated by
the synaptic________ - Answer- cleft or gap
The axon terminal ends as a synaptic______ close to the receptive surface of another cell. -
Answer- knob
A neurilemma surrounds the ______ and contains most of the ______. - Answer- myelin
sheath; Schwann cell cytoplasm
The passage of proteins, organelles, and other materials in both directions along an axon
occurs through a process called_____ ______. - Answer- Axonal transport
What is the name of the gaps found between segments of myelin along an axon? - Answer-
Nodes of Ranvier
2|Page