Chapter 2: Essential Nervous System Flashcards
What is the term for the area of skin innervated primarily by a single spinal nerve root?
dermatome
What term describes the ability to sense the position of the joints and body in space?
proprioception
Reaching deep into a coat pocket to retrieve a small key, among other objects, without the aide of vision requires which of the following types of functional sensations?
-proprioceptionm
- stereognosis
- somatosensation
- touch localization
stereognosis
Which of the following ADL tasks would be most difficult with sensory loss of the median nerve? (Think about the median nerve’s sensory contribution to the hand and finger.)
- buttoning the top button of a shirt
- putting on a pair of pants
- buckling a belt
- washing your hands
buttoning the top button of a shirt
The autonomic nervous system is responsible for all of the following except:
- regulation of metabolism
- coordinating motor mvmts of the body
- increasing or decreasing cardiovascular
- initiating a fight-or-flight response
coordinating motor mvmts of the body
What structure describes interconnected nerve pathways that supply sensorimotor innervation to the upper extremity?
- lumbar plexus
- brachial plexus
- sacral plexus
- cervical plexus
brachial plexus
All but which of the following are part of the central nervous system (CNS)?
- spinal nerves
- brain
- spinal cord
- brainstem
spinal nerves
A radial nerve impairment may result in which of the following?
- loss of active finger flexion
- loss of active wrist and finger extension
- intrinsic hand muscle weakness
- loss of thumb adduction
loss of active wrist and finger extension
Which of the following terms refers to a bundle of axons transmitting a similar type of information within the spinal cord?
- peripheral nerve
- cranial nerve
- dorsal root ganglia
- tract
tract
Which of the following statements regarding cranial nerves are not true?
- They emerge from the brainstem
- They innervate structured only within the head
- They are located in the CNS but function similar to peripheral nerves
- They are arranged in 12 pairs
They innervate structured only within the head
In the context of the nervous system, conducting sensory information twd the CNS is defined as …
afferent
The part of the nervous system that directs and regulates primarily subconscious involuntary processes is defined as …
Autonomic nervous system (ANS)
The portion of the neuron that transport information away from the cell body to other neurons is defined as …
axon
A peripheral nerve injury in which the axon remains continuous while surrounding the epineurium, perineurium, and endoneurium are damaged is defined as …
axonotmesis
An interconnected network of nerves from which primary nerves emanate to innervate the upper extremity is define as …
brachial plexus
Define Central Nervous System (CNS)
The brain and spinal cord, which process and control the activity of the entire nervous system.
An interconnected network of nerves that innervate structures primarily of the head and neck is defined as …
Cervical Plexus
The nerves that arise from the brainstem and innervates structures within the head and neck, glands, and some viscera is defined as …
cranial nerves
Define dendrite
the portion of the neuron that receives information and conducts it twds the cell body
The area of the skin supplied by nerve fibers that arise from an individual spinal nerve root is defined as …
dermatome
The portion of the spinal nerve that connects directly to the spinal cord via nerve rootlets and transmits sensory information is defined as ….
dorsal nerve root
In the context of the nervous system, conducting motor signal information away from the CNS to the tissues of the body is defined as …
efferent
Equilibrium within the systems of the body is defined as
homeostasis
An interconnected network of nerved from which primary nerves emanate to innervate muscles of the pelvis and thigh is defined as …
lumbar plexus
