Nervous System

1.    Which of these are regarded as "functional units" of the nervous system?

Nerves

Ganglia

Synapses

Neurons

 

2.   A nerve cell that conducts information TOWARD the central nervous system is called a(n):

Motor neuron

Afferent neuron

Association neuron

Efferent neuron

 

3.   A mass of neural tissue that contains mostly nerve cell bodies and interneurons is called a(n):

Ganglion

Synapse

Nerve

Motor end plate

 

4.   How many pairs of ganglia have fused together to form the insect's brain?

Two

Three

Four

Six

 

5.   A commissure is a nerve that connects:

The brain with the subesophageal ganglion

Paired ganglia within the same body segment

The tritocerebrum to the frontal ganglion

The frontal ganglion with the hypocerebral ganglion

 

6.   A nerve impulse traveling from the subesophageal ganglion to the tritocerebrum would pass through the:

Recurrent nerve

Frontal nerve

Circumesophageal connective

Circumesophageal commissure

 

7.   Which structures are innervated by the protocerebrum?

Compound eyes and ocelli

Antennae

Mouthparts

Bursa copalatrix

 

8.   Which ganglion regulates flight activity in a house fly?

Hypocerebral

Mesothoracic

Caudal

Subesophageal

 

9.   Which statement about the insect's nervous system is INCORRECT?

The ventral nerve cord controls the legs and wings.

The caudal ganglion controls the external genitalia.

The brain controls the eyes and antennae.

The stomodeal nervous system controls the mouthparts.

 

10.   If an insect's subesophageal ganglion were paralyzed, it would be unable to:

Fly

Eat

See

Walk