Chapter 12- Nervous System and Mental Health Flashcards
Central nervous system (CNS)
Brain and spinal cord
Brain
Part of the central nervous system contained within the cranium
Brainstem
Connects the brain to the spinal cord; assists in breathing, heart rhythm, vision, + consciousness
Pons
Part of the brainstem that connects different regions of the brain
Medulla oblongata
Part of the brainstem that connects the brain and the spinal cord; controls respiration and heartbeat
Midbrain, syn. mesencephalon
Part of the brainstem that connects the brainstem to the cerebellum; controls sensory processes
Cerebellum, syn. hindbrain
Posterior portion of the brain that coordinates voluntary muscles and maintains balance and muscle tone
Cerebrum
Largest and uppermost portion of the brain; divided into right and left halves (called cerebral hemispheres) and subdivided into lobes
Cerebral cortex
Outer layer of the cerebrum; controls higher mental functions
Frontal lobe
Front portion of the cerebrum that controls voluntary muscle movement and is involved in emotions
Gyrus
Raised convolution of the surface of the cerebrum
Occipital lobe
Back portion of the cerebrum that controls vision
Parietal lobe
Middle-top portion of the cerebrum involved in perception of touch, temperature, + pain
Sulcus
Groove or fissure on the surface of the brain
Temporal lobe
Portion of the cerebrum below the frontal lobe; controls senses of hearing and smell as well as memory, emotion, speech, + behavior
Diencephalon, syn. hypophysis
Area deep within the brain that contains the thalamus, hypothalamus, + pituitary gland; responsible for directing sensory information to the cortex
Cerebrospinal fluid (CSF)
Colorless fluid that circulates in and around the brain and spinal cord; acts as a protector and transports nutrients
Meninges
Membranous covering of the brain and spinal cord
Arachnoid
Delicate fibrous membrane forming the middle layer of the meninges
Dura mater
Strong fibrous outermost layer of the meninges
Pia mater
Thin inner layer o the meninges that attaches directly to the brain and spinal cord
Spinal cord
Portion of the central nervous system contained in the spinal or vertebral canal; responsible for nerve conduction to and from the brain and body
Ventricle
One of 4 interconnected cavities within the brain that secrete cerebrospinal fluid
Peripheral nervous system
Part of the nervous system external to the brain and spinal cord that consists of all other nerves throughout the body
Nerve
Whitish cordlike structure that transmits stimuli from the CNS to another area of the body or from the body to the CNS
Ganglion
Group of nerve cell bodies located on the pathway of a nerve
Neuroglia, syn. glia
Cells that support and protect nervous tissue
Neuron
Nerve cells; cells that make up the basic structure of the nervous system and conduct impulses
Cranial nerves
12 pairs of nerves that emerge from the cranium
Spinal nerves
31 pairs of nerves that emerge from the spine
Cerebell/o
Cerebellum (little brain)
Cerebr/o
Brain, cerebrum
Cortic/o
Cortex (as in cerebral cortex)
Crani/o
Cranium, skull
Dur/o
Hard, dura matter
Encephal/o
Entire brain
Esthesi/o
Sensation, perception
Gangli/o, ganglion/o
Ganglion
Gli/o
Glue, neuroglia
Mening/o, meningi/o
Meninges
Myel/o
Bone marrow, spinal cord
Narc/o
Stupor, numbness, sleep
Neru/o
Nerve
Phas/o
Speech
Poli/o
Grey
Radicul/o
Nerve root
Somn/o, somn/i
Sleep
Spin/o
Spine
Spondyl/o, vertebr/o
Vertebra
Thalam/o
Thalamus
Ventricul/o
Ventricle
Anix/o
Fear, worry
Hallucin/o
To wander in one’s mind
Hypn/o
Sleep, hypnosis
Ment/o, psych/o, phren/o
Mind, mental
Schiz/o
Split
Soci/o
Social, society
Thym/i, thym/o
Mind, emotion, soul
Epi-
On, following
Hemi-
1/2
Hyper-
Above, excessive
Hypo-
Below, deficient
Para-
Beside
Poly-
Many, much
Quadri-
Four
Bi-
2, 2x
De-
Away from, cessation, w/o
Eu-
Good, normal
-Ar, -Al
Pertaining to
-Gram
Record, recording
-Ia
Condition of
-Lepsy, -ictal
Seizure
-Logist
One who specializes in
-Paresis
Partial or incomplete paralysis
-Phrenia
Mind
-Plegia
Paralysis
-Tomy
Incision
-Iatrist
One who specializes in
-Mania
Excited state, obsession
-Philia, -phile
Attraction for
-Phobia
Abnormal fear, aversion to, sensitivity to
Bipolar
Having two ends or extremes
Cerebral
Pertaining to the cerebrum
Cerebellar
Pertaining to the cerebellum
Crainial
Pertaining to the cranium/skull