Ch 34: Animal Nervous Systems

Question 1

Nervous System

Answer 1

A network of many interconnected nerve cells.

Question 2

Neurons

Answer 2

Nerve cell; the basic fundamental unit of nervous systems.

Question 3

Sensory Neurons

Answer 3

A neuron that receives and transmits information about an animal’s environment or its internal physiological state.

Question 4

Interneurons

Answer 4

A neuron that processes information received by sensory neurons and transmits it to motor neurons in different body regions.

Question 5

Motor Neurons

Answer 5

A neuron that signals a muscle or gland to cause a response in the body.

Question 6

Ganglia

Answer 6

A group of nerve cell bodies that processes sensory information received from a local, nearby region, resulting in a signal to motor neurons that control some physiological function of the animal.

Question 7

Brain

Answer 7

The centralized concentration of neurons in an organ located in the head that processes complex sensory stimuli from the environment or from anywhere in the body.