The Nervous System

Front

The two largest divisions of the nervous system are the

Back

central and peripheral.

Front

What is the correct order of events in a reflex? Options: Afferent system -> Efferent System -> Interneuron, Efferent System -> Afferent system -> Interneuron, Interneuron -> Afferent system -> Efferent System, Afferent system -> Interneuron -> Efferent System, Interneuron -> Efferent System -> Afferent system

Back

Afferent system -> Interneuron -> Efferent System

Front

Which of the following is NOT true of reflexes?

• They are automatic and do not require consciousness.
• Many, like the "pull away your hand" or "jerk your knee" reaction, originate in the spinal cord.
• Most occur before you even think about it.
• They originate in the brain and are voluntary.
• Many are evolved reactions meant to keep the body safe.

Back

They originate in the brain and are voluntary.

Front

Which division of the nervous system controls voluntary behaviors? Options: Sympathetic, Parasympathetic, Autonomic, Somatic, Afferent

Back

Somatic

Front

The sympathetic and parasympathetic nervous systems together make up which division of the nervous system?

Back

Autonomic

Front

Mukucha's heart is beating rapidly, his pupils are dilated, and his mouth is dry. This response was triggered by which division of his nervous system? Options: Sympathetic, Parasympathetic, Somatic, Afferent, Peripheral

Back

Sympathetic

Front

Afferent neurons are primarily responsible for what function?

Back

Bringing sensory information from the sensory organs to the central nervous system.

Front

The brain and the spinal cord make up which division of the nervous system?

Back

Central

Front

"Fight or flight" is mostly associated with which subdivision of the nervous system?

Back

Sympathetic

Front

Another name for motor neurons is

Back

efferent neurons.