1. Ch2 - Nervous System |
DEFINITIONS already graded
A+(EVERYTHING YOU NEED
TO PASS)
CENTRAL NERVOUS SYSTEM (CNS) - answer The nervous
system cells that make up the brain and spinal cord.
PERIPHERAL NERVOUS SYSTEM (PNS) - answer The
nervous system cells that provide information to the brain
and spinal cord.
NEURON - answer The nervous system cell that produces
action potentials to communicate with other neurons,
muscles, or glands.
ACTION POTENTIAL - answer The electrical signal produced
by a neuron or muscle spindle.
MUSCLE SPINDLE - answer A sensory receptor contained in
the muscle belly that detects changes in muscle length
and helps regulate contraction
SYNAPSE - answer An area between neurons,
or between a neuron and muscles or glands, where
electrical or chemical signals are transmitted
, NEUROMUSCULAR JUNCTION - answer The synapse where
the motor neuron transmits a signal to the muscle fiber
that results in muscle contraction
MYELIN - answer A fatty sheath around
the axon of a nerve that provides electrical insulation,
protection, nourishment, and faster signal transmission
MULTIPLE SCLEROSIS - answer A disease that damages the
myelin that surrounds an axon
CRANIAL NERVES - answer 12 pairs of nerves that emerge
from the brain or brainstem to relay pure sensory, pure
motor, or sensory and motor information to the head.
SOMATIC NERVOUS SYSTEM - answer The division of the
peripheral nervous system that controls voluntary
movement
AUTONOMIC NERVOUS SYSTEM - answer The division of
the peripheral nervous system that controls subconscious
actions such as breathing, heart rate, and digestive
processes
PARASYMPATHETIC NERVOUS SYSTEM - answer The
division of the autonomic nervous system that generates
the "rest or digest" response
DEFINITIONS already graded
A+(EVERYTHING YOU NEED
TO PASS)
CENTRAL NERVOUS SYSTEM (CNS) - answer The nervous
system cells that make up the brain and spinal cord.
PERIPHERAL NERVOUS SYSTEM (PNS) - answer The
nervous system cells that provide information to the brain
and spinal cord.
NEURON - answer The nervous system cell that produces
action potentials to communicate with other neurons,
muscles, or glands.
ACTION POTENTIAL - answer The electrical signal produced
by a neuron or muscle spindle.
MUSCLE SPINDLE - answer A sensory receptor contained in
the muscle belly that detects changes in muscle length
and helps regulate contraction
SYNAPSE - answer An area between neurons,
or between a neuron and muscles or glands, where
electrical or chemical signals are transmitted
, NEUROMUSCULAR JUNCTION - answer The synapse where
the motor neuron transmits a signal to the muscle fiber
that results in muscle contraction
MYELIN - answer A fatty sheath around
the axon of a nerve that provides electrical insulation,
protection, nourishment, and faster signal transmission
MULTIPLE SCLEROSIS - answer A disease that damages the
myelin that surrounds an axon
CRANIAL NERVES - answer 12 pairs of nerves that emerge
from the brain or brainstem to relay pure sensory, pure
motor, or sensory and motor information to the head.
SOMATIC NERVOUS SYSTEM - answer The division of the
peripheral nervous system that controls voluntary
movement
AUTONOMIC NERVOUS SYSTEM - answer The division of
the peripheral nervous system that controls subconscious
actions such as breathing, heart rate, and digestive
processes
PARASYMPATHETIC NERVOUS SYSTEM - answer The
division of the autonomic nervous system that generates
the "rest or digest" response
