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43 Cards in this Set

  • Front
  • Back

Central Nervous System


(CNS)

The part of the vertebrate nervous system that is located WITHIN the skull and spine.

Peripheral Nervous System


(PNS)

The part of the vertebrate nervous system that is located OUTSIDE the skull and spine.


Cervical Region


The section of the spine that provides the flexible framework of the neck or cervix; it lies between the skull and the thoracic region.

Thoracic Region

The section of the spine to which the ribs are attached;it lies between the cervical and the lumbar regions.

Lumbar Region

The section of the spine that supports the small of the back; it lies between the thoracic region and the sacral region.

Sacral Region

The section of the spine to which the bones of the pelvis ate attached; it lies adjacent to the lumbar region


Brain

The part of the central nervous system that is located in the skull


Spinal Cord

The part of the central nervous system that is located in the spine

Somatic Nervous System

The division of the peripheral nervous system that interacts with the external environment; t conducts sensory signals to the CNS from external receptors and receptors in joints and skeletal muscles, and it conducts motor signals from the CNS to skeletal muscles

Autonomic Nervous System


The division of the peripheral nervous system that participates n the regulation of the body's internal environment; it conducts sensory signals to the CNS from receptions in internal organs, and motor signals from the CNS back to the same internal organs

horizontal sections

slices of the brain that are cut in a horizontal plane, that is, cut parallel to the horizon when the subject is in an upright position


Sagittal sections


slices that are cut parallel to the vertical plane that divides the brain into left and right halves

midsagittal section

a sagittal cut that is cut from the very midline of the brain

coronal sections

cut approximately parallel to the surface of the face

cross sections

sections that are cut at right angles to the long axis of any long narrow structure, for example, at right angles to the long axis of the spinal cord.

anterior

toward the nose end; aka rostral

posterior

toward the tail end; aka caudal


dorsal

toward the surface of the back or top of the head

ventral

toward the surface of the chest and stomach or bottom of the head

medial

toward the midsagittal plane

lateral

away from the midsaggital plane; toward the left and right

superior

toward the dorsal surface of the primate head

inferior

toward the ventral surface of the primate head

unilateral

on one side of the body

bilateral

on both sides of the body

ipsilateral

from or to the same side of the body

contralateral

from or to the opposite side of the body


cerebral hemisphere

the two large neural structures that sit atop the vertebrate brain stem, one on the left and one on the right; they mediate complex psychological processes

Brain stem

the central neural stem on which the two cerebral hemispheres sit; many brain stem structures play key roles in the regulation of the body's inner environment

Telencephalon

the cerebral hemispheres; one of the two divisions of the forebrain (the other one is the diencephalon)


Diencephalon

the region of the brain between the telencephalon and the mesencephalon; one of the two divisions of the forebrain (the other is the telencephalon); the most anterior region of the brain stem


Mesencephalon

the midbrain; the region of the brain stem between the deincephalon and the metencephalon

Metencephalon

the region of the brain stem between the mesencephalon and the spinal cord; one of the two divisions of the hindbrain (the other is the metencephalon)

Dura mater

the outermost and toughest of the three meninges


Arachnoid membrane

the middle menynx' it has the texture of a gauze like spider web.


Pia Mater

the innermost and most delicate of the three meninges; it adheres to the surface of the CNS


Subarachnoid Space

the space between the main part of the arachnoid membrane and the pia mater; it contain cerebrospinal fluid, the web-like processes of the arachnoid layeer and many blood vessels

Cerebrospinal fluid

the fluid that fills both the subarachnoid space and the hollow core of the brain and spinal cord, it supports, nourishes and cushions the central nervous system

Central Canal

the cerebrospinal-fluid-filled internal space that runs the length of the spinal cord

lateral ventricles

the ventricles of the left and right cerebral hemispheres; they are the largest of the four cerebral ventricles

third ventricle

the cerebral ventricle of the diencephalon; it is a ventrical sheet-shaped chamber that lies along the midline.

Fourth Ventricle

the cerebral ventricle of the metencephalon; it connects the cerebral aqueduct and the central canal

Cerebral aqueduct

the narrow channel that connects the third and fourth venticles; most of it is located in the mesencephalon