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Anatomic dead space volume (VD) - 🧠 ANSWER ✔✔The volume of air that
occupies the non-respiratory conducting airways
Expiratory reserve volume (ERV) - 🧠 ANSWER ✔✔The maximal volume of air
that can be exhaled after a normal tidal exhalation. ERV is approx. 15% of total
lung volume.
Forced expiratory volume (FEV) - 🧠 ANSWER ✔✔The maximal volume of air
exhaled in a specified period of time: usually the 1st, 2nd, and 3rd second of a
forced vital capacity maneuver.
Functional residual capacity (FRC) - 🧠 ANSWER ✔✔The volume of air in the
lungs after normal exhalation. FRC=ERV+RV. FRC is approx. 40% of total lung
volume.
,Inspiratory capacity (IC) - 🧠 ANSWER ✔✔The maximal volume of air that can be
inspired after a normal tidal exhalation. IC=TV+IRV. Approx. 60% of total lung
volume
Inspiratory Reserve Volume (IRV) - 🧠 ANSWER ✔✔The maximal volume of air
that can be inspired after normal tidal volume inspiration. IRV is approximately
50% of total lung volume.
Peak expiratory flow (PEF) - 🧠 ANSWER ✔✔The maximum flow of air during
the beginning of a forced expiratory maneuver
Residual Volume (RV) - 🧠 ANSWER ✔✔the volume of gas remaining in the
lungs at the end of a maximal expiration. Approx. 25% of total lung volume.
Tidal Volume (TV) - 🧠 ANSWER ✔✔Total volume inspired and expired with
each breath during quiet breathing. Approx. 10% of total lung volume
Total Lung Capacity (TLC) - 🧠 ANSWER ✔✔The volume of air in the lungs after
max inspiration. The sum of all lung volumes.
Vital Capacity (VC) - 🧠 ANSWER ✔✔volume change that occurs between
maximal inspiration and maximal expiration. Approx. 75% of total lung volume
, 3
Akinesia - 🧠 ANSWER ✔✔The inability to initiate movement; commonly seen in
patients with Parkinson's disease
Asthenia - 🧠 ANSWER ✔✔generalized weakness, typically secondary to
cerebellar pathology
Ataxia - 🧠 ANSWER ✔✔inability to perform coordinated movements
Athetosis - 🧠 ANSWER ✔✔A condition that presents with involuntary
movements combined with instability of posture. Peripheral movements occur
without central stability
Bradykinesia - 🧠 ANSWER ✔✔slow movement
Chorea - 🧠 ANSWER ✔✔movements that are sudden, random, and involuntary
Clasp-knife response - 🧠 ANSWER ✔✔A form of resistance seen during range of
motion of a hypertonic joint where there is greatest resistance at the initiation of
range that lessens with movement through the range of motion
Clonus - 🧠 ANSWER ✔✔characteristic of an upper motor neuron lesion;
involuntary alternating spasmodic contraction of a muscle precipitated by a quick
stretch reflex
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, cogwheel rigidity - 🧠 ANSWER ✔✔A form of rigidity where resistance to
movement has a phasic quality to it; often seen with Parkinson's disease.
Dysdiadochokinesia - 🧠 ANSWER ✔✔inability to perform rapid alternating
movements
Dysmetria - 🧠 ANSWER ✔✔The inability to control the range of a movement and
the force of muscular activity.
Dystonia - 🧠 ANSWER ✔✔closely related to athetosis; however there is larger
axial muscle involvement rather than appendicular muscles
Fasciculation - 🧠 ANSWER ✔✔A muscular twitch that is caused by random
discharge of a lower motor neuron and its muscle fibers; suggests lower motor
neuron disease, however, can be benign
Hemiballism - 🧠 ANSWER ✔✔an involuntary and violent movement of a large
body part
Kinesthesia - 🧠 ANSWER ✔✔Ability to perceive the direction and extent of
movement of a joint or body part
Lead pipe rigidity - 🧠 ANSWER ✔✔form of rigidity where there is uniform and
constant resistance to ROM, often associated with lesions of basal ganglia