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Nervous System Org

Nervous System Organization

QuestionAnswer
The brain and spinal cord are components of the _____. central nervous system
The axons and dendrites extend from the spinal cord o the muscles and glands and form _____. nerves
The spinal cord passes downward from the brain and extends through a bony tunnel found in _____. vertebrae
The spinal cord is continuous with the _____. brain (medulla oblongata)
Three membranes surrounding and protecting the spinal cord are called _____. meninges
The outermost membrane surrounding the spinal cord is the _____. dura mater
The inner membrane surrounding the spinal cord and having many blood vessels is the _____. pia mater
Clear, watery fluid is found in the central canal of the spinal cord and is called _____. cerebrospinal fluid
Injury to the ventral root of the spinal cord results in a condition called _____. paralysis
The spinal cord serves as a coordinating center for the _____. reflex arc
The brain receives impulses from the spinal cord as well as from 12 pairs of _____. cranial nerves
The brain is composed of two major _____. hemispheres
The brain consumes about one quarter of the body’s _____. oxygen
The outer portion of the brain is mainly composed of _____. gray matter
The numerous convolutions of the brain are called _____. gyri
The anterior portion of each cerebral hemisphere is occupied by a lobe called the _____. frontal lobe
At the posterior portion of the cerebral hemispheres is a lobe called the _____. occipital lobe
The region of the frontal lobe concerned with motor function for speech is _____. Broca’s area
The sense of smell is located deep within a portion of the brain known as the _____. cerebrum
The interpretation of the visual patters occurs in the lobe of the brain known as the _____. occipital lobe
The cavities of the brain are called the _____. ventricles
The brain region lying posterior to the medulla and serving as a coordinating center for motor activity is the _____. cerebellum
The cerebellum is composed of two lateral _____. hemispheres
Because it is a reflex center for coordinating muscle activity, the cerebellum helps smooth gait and maintain _____. posture
The nucleus of the diencephalon relaying sensory impulses into the cerebral cortex is the _____. thalamus
The nucleus of the diencephalon producing some hormones stored to be released by the pituitary gland is the _____. hypothalamus
Emotional experiences such as fear, anger, pleasure, and sorrow are regulated in a ring of tissue at the edge of the brain stem called the _____. limbic system
The round bulge in the brain stem separating the midbrain from the medulla is the _____. pons
The swollen stem of the brain connecting the spinal cord to the remainder of the brain is the _____. medulla oblongata
In the cerebrum of the brain, impulses cross over to the opposite sides of the brain via the _____. decussation of pyramids
The network of nerve fibers in the medulla responsible for activating the cerebral cortex is the _____. reticular formation
The sensory somatic system is composed of spinal nerves and _____. cranial nerves
The human body has spinal nerves numbering _____. 31 pairs
The cranial nerve regulating swallowing, senses, and control of the face, teeth, and tongue is the _____. olfactory nerve
The cranial nerve with sensory and motor functions controlling the heart, blood vessels, and organs of the viscera is the _____. vagus nerve
The spinal nerves communicate impulses between various parts of the body and the _____. spinal cord
Bodies where spinal meres combine temporarily before passing to the destination points are known as _____. plexuses
The autonomic nervous system operates in a manner that is _____. involuntary
Created by: KMCBSLCC
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