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A&P 1 Final Ch 11 L10

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    The central nervous system (CNS) consists of
    the brain and spinal cord.
    The epidural space contains
    loose connective tissue, blood vessels, and adipose tissue.
    In a subdural hematoma resulting from a blow to the head, blood accumulates between the
    dura mater and arachnoid mater.
    An inflammation of the meninges called meningitis usually affects the
    arachnoid mater and pia mater.
    Most cerebrospinal fluid is secreted from the choroid plexuses in the
    lateral ventricles.
    The fourth ventricle is in the
    brainstem.
    Which of the following lists the parts of a reflex arc in the correct sequence?
    Receptor, sensory neuron, interneuron, motor neuron, effector
    Reflexes help to control
    all of the above
    Stephanie is in a car accident, flung from her vehicle and landing on her back on pavement. At the scene, an emergency medical technician checks her Babinski reflex, in which the great toe extends upward and the smaller toes fan apart. This reflex
    may indicate an injury to the corticospinal tract.
    The expected response to the triceps-jerk reflex is
    extension of the forearm.
    Gray matter of the spinal cord is mostly composed of
    interneurons.
    The corticospinal tracts control
    voluntary muscle movements.
    If the right lateral spinothalamic tract is severed,
    pain impulses from the left side are blocked.
    If the left corticospinal tract is severed in the neck near the first cervical vertebra,
    muscles in the left arm and leg are paralyzed.
    The spinal cord has
    all of the above
    All reflexes have
    a reflex arc.
    The simplest level of CNS function is the
    spinal reflex.
    Over the course of several months, Morris has experienced difficulty speaking coherently, clumsiness, muscle fasciculations, and increasing weakness in his limbs. These symptoms are most consistent with those of
    amyotrophic lateral sclerosis.
    A soldier suffers a brain injury, and becomes unable to speak. The damage is likely in
    Broca’s area.
    Which lobe of your brain are you using when you answer this question?
    Frontal
    Which of the following is not a part of the diencephalon?
    Anterior pituitary gland
    Which of the following parts of the mature brain develops from the forebrain?
    Thalamus
    The ___________ separates the cerebrum from the cerebellum.
    transverse fissure
    Which of the following is not a function of the hypothalamus?
    Control of postural reflexes
    Spina bifida is a(n)
    all of the above
    Aphasia is loss of the ability to
    speak.
    Interruption of blood flow to the brain that can damage the cerebrum is called a
    cerebrovascular accident.
    Brain waves are recordings of activity in the
    cerebral cortex.
    Which of the following terms and definitions is correct?
    cerebral cortex-a thin layer of gray matter forming the outermost part of the cerebrum
    Basal ganglia are located in the ______ and ______.
    deep regions of the cerebral hemispheres; aid in control of motor activities
    The somatic nervous system consists of nerve fibers that connect the CNS to the ______, whereas the autonomic nervous system consists of fibers that connect the ______.
    skin and skeletal muscles; CNS to the visceral organs
    Over a lifetime, the brain shrinks by about ___ percent.
    10
    Brain waves during sleep are ____ waves.
    delta
    The arbor vitae is in the cerebrum.
    False
    Spinal nerves are grouped and named according to function.
    False
    The ________ are membranes between the CNS and its bony coverings.
    meninges
    The interconnected, fluid-filled cavities in the brain are called ______.
    ventricles
    The ______ system of the brain causes feelings about experiences.
    limbic
    The _______ division of the autonomic nervous system prepares the body for energy-expending, stressful situations.
    sympathetic
    By age ___, the frontal cortex has lost half its neurons.
    90
    There are ___________ pairs of spinal nerves.
    31
    Masses of gray matter deep in the cerebral hemisphere.
    basal ganglia
    10 of the 12 pairs of cranial nerves originate from the _____.
    brain stem
    Coordination of skeletal muscles
    cerebellum
    Relays information to other parts of the brain and respiratory center
    pons
    Functions as the control center for vital visceral activities like the cardiac and vasomotor center
    medulla oblongata
    Connects the cerebrum to the spinal cord
    brain stem
    Learning, memory, thought
    cerebrum
    Contains reflex centers – visual, and auditory
    midbrain
    Regulation of heart rate, blood pressure, sleep, body temperature, etc.
    diencephalon
    Largest part of a mature brain; 7/8 of the total mass
    cerebrum
    Located between the cerebral hemispheres and above the brainstem
    diencephalon
    Located between the diencephalon and the pons
    midbrain
    Enlarged continuation of the spinal cord
    medulla oblongata
    Inferior to occipital lobes of the cerebrum and posterior to the pons
    cerebellum
    A bulge on the underside of the brainstem
    pons
    Outer layer of meninges
    dura mater
    Watery fluid that cushions the brain and spinal cord
    cerebrospinal fluid
    Innermost thin layer that aids in nourishment
    pia mater
    Thin, web-like middle layer that lacks blood vessels
    arachnoid mater
    Located in the subarachnoid space of the menings
    cerebrospinal fluid
    Forms the internal periosteum of surrounding skull bones
    dura mater
    Location of choroid plexuses
    pia mater
    olfactory (I)
    associated with sense of smell
    optic (II)
    associated with sense of vision
    trochlear (IV)
    the smallest cranial nerve
    trigeminal (V)
    transmits impulses from the surface of the eye, upper teeth, and scalp
    abducens (VI)
    moves the eyes
    facial (VII)
    taste receptors of the anterior tongue
    vestibulocochlear (VIII)
    acoustic nerves
    glossopharyngeal (IX)
    associated with tongue and pharynx
    vagus (X)
    associated with speech and swallowing
    hypoglossal (XII)
    moves the tongue in speaking, chewing and swallowing
    nerve is responsible for vision
    optic
    nerve controls most of the eye muscles
    oculomotor
    nerve controls chewing
    trigeminal
    nerve is active when someone smiles
    facial
    nerve is responsible for taste sensations on the posterior two-thirds of the tongue
    glossopharyngeal
    nerve helps regulate heart rate
    vagus
    plexus controls the upper limb muscles
    brachial
    sensory
    dorsal root
    largest and longest nerve in the body
    sciatic
    Which of the following are descending tracts in the spinal cord?
    None of these is correct.
    Which of the following parts of the mature brain develops from the forebrain?
    thalamus
    A deep bridge of nerve fibers that connects the cerebral hemispheres.
    corpus callosum
    Traumatic brain injury is caused by
    all of these
    The left hemisphere is dominant in ____% of right handed adults.
    90
    Reflex that helps to maintain an upright posture.
    patellar
    The cerebral cortex contains nearly _____% of all the neurons cell bodies in the nervous system
    75
    The convolutions on the cerebrum’s surface is called______.
    gyrus

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