chapter 11 questions

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Which of the following is NOT true of the stretch reflex? The sensory receptor is the muscle spindle Stretching the muscle results in a contraction of the muscle Helps control posture and the knee-jerk reflex Uses a three-neuron arc

Uses a three-neuron arc

The thecal sac is formed around the spinal cord by the pia mater dura mater arachnoid mater

dura mater

What is the correct order of meninges from superficial to deep? dura mater, pia mater, arachnoid mater pia mater, arachnoid mater, dura mater arachnoid mater, pia mater, dura mater dura mater, arachnoid mater, pia mater

dura mater, arachnoid mater, pia mater

The connective tissue wrap around an axon and its Schwann cell sheath is the epineurium perineurium endoneurium dermaneurium

endoneurium

What area of the spinal cord is used to inject anesthetics for childbirth and other applications? ! epidural space subdural space subarachnoid space suprapial space

epidural space

What structures help to anchor the spinal cord within the subarachnoid space? conus medullaris and pia mater denticulate ligaments and cauda equina filum terminale and denticulate ligaments filum terminale and thecal sac

filum terminale and denticulate ligaments

The spinal cord begins at the level of the first cervical vertebra ! foramen magnum second lumbar vertebra brain stem

foramen magnum

Which of the following is TRUE about spinal cord structure? gray matter inside, white matter outside, and a ventral sensory root gray matter inside, white matter outside, and a dorsal sensory root gray matter outside , white matter inside, and a ventral motor root gray matter outside, white matter inside, and a dorsal motor root

gray matter inside, white matter outside, and a dorsal sensory root

The cell bodies of motor neurons to autonomic effectors are located in the posterior gray horns lateral gray horns anterior gray horns gray commissure

lateral gray horns

The cell bodies of motor neurons to skeletal muscles are located in the posterior gray horns lateral gray horns anterior gray horns gray commissure

anterior gray horns

The nerves arising from the inferior lumbosacral enlargement form the conus medullaris filum terminale posterior horns cauda equina

cauda equina

The connective tissue wrap that surrounds many axons to form a fascicle is the epineurium perineurium endoneurium dermaneurium

perineurium

The activation of Golgi tendon organs will cause a muscle to relax contract quiver spasm

relax

The spinal cord ends at the level of the sacrum fourth lumbar vertebra second lumbar vertebra twelfth thoracic vertebra

second lumbar vertebra

The dorsal spinal nerve root is motor and has no ganglion motor and has a ganglion sensory and has no ganglion sensory and has a ganglion

sensory and has a ganglion

Pulling the arm back from a hot pan is an example of a ______ reflex. stretch withdrawal Golgi tendon autonomic

withdrawal

Which of the following is the correct sequence of structures in a reflex arc? effector organ, motor neuron, interneuron, sensory neuron, sensory receptor interneuron, sensory neuron, motor neuron, sensory receptor, effector organ sensory receptor, sensory neuron, interneuron, motor neuron, effector organ sensory receptor, sensory neuron, motor neuron, interneuron, effector organ

sensory receptor, sensory neuron, interneuron, motor neuron, effector organ

What area of the spinal cord contains cerebrospinal fluid? epidural space subdural space subarachnoid space

subarachnoid space

White matter of each halve of the spinal cord is organized into three columns which are divided into tracts three horns which are divided into tracts three columns which are divided into horns three fasciculi which are divided into funiculi

three columns which are divided into tracts

The gray matter of each halve of the spinal cord is divided into three columns three fasciculi three horns three funiculi

three horns


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