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61 Cards in this Set

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  • Back
This nerve innervates the gracilis
This nerve innervates the muscles that extend the leg
This nerve innervates the biceps femoris
This nerve innervates the fibularis (peroneus) longus
common fibular
This nerve innervates the muscle that extends the forearm
radial nerve
This nerve innervates the muscels that flex (horizontally adduct) the arm.
medial pectoral
This nerve innervates the muscle used in singing.
phrenic nerve
This nerve innervates the muscle that abducts the arm.
This nerve innervates the soleus.
The 'funny bone'.
This nerve innervates the biceps brachii.
This nerve innervates the muscles that adduct the thigh.
This nerve was involved in the Achilles reflex.
This nerve innervates the muscles that plantar flex the foot
tibial nerve
This nerve innervates the triceps brachii
A reflex that involves both sides of the body is said to be a ______ reflex.
A reflex that stimulates one muscle while inhibiting the antagonist of that muscle is said to show _____.
reciprocal innervation
A reflex that involves the diaphragm would be a [somatic/autonomic] reflex.
A reflex that involves the tibial nerve would be a [cranial/spinal] reflex.
The papillary light reflex was an example of a/an [somatic/autonomic] reflex.
The gag reflex was [ipsilateral/contralateral].
What are dermatomes?
The skin over the entire body is supplied by spinal nerves that carry somatic sensory nerve impulses into the spinal cord.
How are dermatomes used in medicine?
Knowledge of dermatomes helps a physician to determine which segment of the spinal cord or which spinal nerve is malfunctioning.
What are the 3 meninges? Where is cerebrospinal fluid found?
1. Dura mater
2. Arachnoid mater
3. Pia mater
CSF is found in the subarachnoid space.
The spinal cord stops at the level of lumbar vertebra number _____?
The spinal cord gives rise to ____ pairs of spinal nerves.
The spinal cord is held in place by extensions of the pia mater called the _____ and the _____.
denticulate ligaments
filum terminale
An axon running from the posterior horn would be carrying impulses that are [somatic motor/autonomic motor/sensory].
An improperly administered injection in the hip region could injure the ______ nerve while the _____ nerve is anesthetized before an episiotomy.
This nerve is the most easily damaged of the peripheral nerves as it runs posterior to the medial epicondyle.
This is the nerve involved in carpal tunnel syndrome.
median nerve
This nerve can be damaged by improper use of crutches.
axillary nerve
What is the function of the descending tract?
conduct impulses down the cord
function of gray commissure?
communicate with whit commissure enabling communication
function of lumbar enlargment?
gives rise to nerves to/from lower limbs
function of epidural space?
protection of spinal cord by cushion of fat and connective tissue
function of dorsal root ganglion?
contain cell bodies of sensory neurons
The nuclei of somatic motor neuron cell bodies are found in the _____ of the spinal cord.
ventral horn
The nuclei of autonomic motor neuron cell bodies are found in the _____.
lateral horn
define reflexes.
fast, predictable, automatic responses to changes in the environment that help maintain homeostasis.
The spinal cord passes through the ______ foramina while the spinal nerves pass through the _____ foramina.
List the 5 components of a reflex.
1. receptor
2. sensory neuron
3. motor neuron
4. integrating center neuron
5. effector
Why can a spinal tap be given in the lower lumbar region of the vertebral column without damaging the spinal cord? What fluid can be sampled here?
It is inferior to the lowest portion of the spinal cord; it provides relatively safe access. Cerebrospinal fluid can be sample here.
A reflex that involves a synapse between the incoming sensory neuron and the outgoing motor neuron.
A reflex that involves both sides of the body.
Inhibiting one set of muscles while stimulating another.
reciprocal innervations
A reflex that involves the smooth muscle of the urinary bladder would be a [somatic/autonomic] reflex.
A reflex that involved the medulla would be a [spinal/cranial] reflex.
The nerve responsible for flexing leg.
the nerve responsible for flexing the thigh
the nerve responsible for extending and abducting the wrist
the nerve that innervates the diaphragm
the nerve that innervates the muscle that flexes the forearm
The anterior white columns are [myelinated/unmyelinated].
[Ascending/descending] tracts are motor tracts.
function of white commissure?
connects the white matter of right and left sides of spinal cord
function of intervertebral foramina?
allows spinal nerves to pass through.
function of cervical enlargement?
nerves to and from upper limbs arise from here.
What is meant by the term mixed nerve?
contains both sensory and motor neurons
function of ventral root?
conducts impulses from spinal cord to the periphery
function of proprioceptors?
provide information about body position, muscle length tension, and the position and movement of our joints