Anatomy & Physiology Nervous System Quiz 2

Masses of nerves in the brain and spinal cord.

• White matter

• Gray matter

• Synapse

• Dendrites

The gap an impulse must cross in order to be relayed from one nerve cell (neuron) to another.

• Dendrite

• Axon

• Synapse

• Myelin sheath

Conserves energy as it slows the heart rate, increases intestinal and gland activity, and relaxes the sphincter muscles – serves as a guard to the openings of the body (anus, openings of the stomach - in the gastrointestinal tract.

• Sympathetic

• Autonomic

• Peripheral

• Parasympathetic

Nervous system in charge of the bodily functions – breathing, heartbeat, and digestive processes.

• Sympathetic

• Autonomic

• Parasympathetic

• Peripheral

It’s main function is to mobilize the body in a fight –or- flight response. (body’s response to emergency situations)

• Sympathetic

• Parasympathetic

• Autonomic

• Peripheral

Voluntary movement of the muscles and organs and reflex movements. In this process the sensory neurons carry impulses to the brain and spinal cord.

• Parasympathetic

• Sympathetic

• Autonomic

• Somatic

A group of drugs that block the binding of nor-epinephrine and epinephrine; it prevents the increased rate of the strength of the heart’s pumping action.

• Nerve fiber

• Beta blocker

• Reflex

• Babinski reflex

A type of response in which smooth or cardiac muscle contract or the response causes secretion by glands.

• Nerve fiber

• Ankle jerk reflex

• Babinski reflex

• Autonomic relfex

Extension of the toe with or without fanning of the other toes.

• Afferent nerve fiber

• Autonomic reflex

• Babinski reflex

• Ankle jerk reflex

Plantar flexion (extension)of the foot in response to tapping the Achilles tendon.

• Ankle jerk reflex

• Babinski reflex

• Autonomic reflex

• Afferent nerve fiber