Questions & Answers
Browse all 20 questions from the
Physiology and Human Performance in Drama study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which specific muscle group, when fatigued during prolonged vocal performance, most significantly increases the risk of functional dysphonia?
-
A
The intrinsic laryngeal muscles
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B
The masseter muscles
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C
The rectus abdominis
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D
The external obliques
2
In ballet and stage performance, what is the primary physiological mechanism by which 'turnout' is achieved in the hip joint without causing femoral acetabular impingement?
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A
External rotation of the tibia
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B
External rotation of the femur via the deep lateral rotators
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C
Abduction of the lumbar vertebrae
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D
Plantar flexion of the talocrural joint
3
Which cranial nerve is most directly responsible for the motor control of the cricothyroid muscle, critical for pitch modulation in professional actors?
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A
Trigeminal nerve (V)
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B
Facial nerve (VII)
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C
Vagus nerve (X)
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D
Hypoglossal nerve (XII)
4
During a sustained 'stage scream', which physiological response helps prevent mechanical trauma to the vocal folds?
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A
Increased glottic closure pressure
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B
Activation of the lateral cricoarytenoid muscles
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C
Increased subglottal pressure without vocal fold hyperadduction
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D
Maximal contraction of the sternocleidomastoid
5
What is the primary metabolic byproduct that accumulates in the muscle tissue of dancers during high-intensity aerobic stage sequences, contributing to localized acidosis?
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A
Pyruvate
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B
Lactate
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C
Creatine phosphate
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D
Adenosine triphosphate
6
Which structural adaptation in the human spinal column allows for the extreme extension required in certain contemporary dance techniques without compromising the spinal cord?
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A
Hypertrophy of the intervertebral discs
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B
Increased range of the facet joints in the thoracic spine
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C
Elongation of the ligamentum flavum
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D
Development of extra vertebrae in the lumbar region
7
What role does the diaphragm play in 'resonant projection' for stage actors beyond simple pulmonary ventilation?
-
A
It creates positive pressure in the abdominal cavity to stabilize the core
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B
It serves as the primary anchor for the hyoid bone
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C
It regulates the flow of air to prevent vocal fold desiccations
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D
It compresses the esophagus to improve resonance
8
In terms of cardiovascular health for performers, what is the 'Staircase Effect' (or Treppe) observed during repetitive, high-intensity stage movement?
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A
A decrease in stroke volume over time
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B
An increase in myocardial contractility due to cumulative calcium availability
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C
A sudden drop in systemic blood pressure
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D
The inhibition of sympathetic nervous system output
9
Which part of the brain is primarily responsible for the 'mirror neuron' activity involved in empathetic dramatic performance and physical mimicry?
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A
The cerebellum
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B
The ventral premotor cortex
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C
The thalamus
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D
The pineal gland
10
What is the clinical term for the repetitive strain injury often found in pianists and violinists that involves the inflammation of the sheath surrounding the tendons?
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A
Epicondylitis
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B
Tenosynovitis
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C
Bursitis
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D
Osteoarthritis
11
During 'stage combat', which anatomical structure is most vulnerable to acute shearing forces during abrupt changes in rotational acceleration?
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A
The anterior cruciate ligament
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B
The glenohumeral labrum
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C
The symphysis pubis
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D
The hyoid bone
12
What is the physiological consequence of 'breath holding' (Valsalva maneuver) frequently used by stage actors to create dramatic tension?
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A
Increased venous return to the heart
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B
Decreased heart rate via baroreceptor reflex
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C
Increased intrathoracic pressure causing transient hypotension
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D
Improved oxygenation of the cerebral cortex
13
Which endocrine gland regulates the release of cortisol, the hormone primarily responsible for the 'fight or flight' stress response experienced by performers before a show?
-
A
Pituitary gland
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B
Adrenal cortex
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C
Thyroid gland
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D
Pancreas
14
How does the 'Alexander Technique' physically influence human posture in performance settings?
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A
By permanently altering the shape of the vertebrae
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B
By reducing excessive tonus in the longus colli and suboccipital muscles
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C
By increasing the length of the Achilles tendon
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D
By stimulating the growth of muscular connective tissue
15
What is the primary physiological reason dancers are instructed to avoid 'locking' the knee joints during extended standing on stage?
-
A
To prevent the compression of the infrapatellar fat pad
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B
To maintain venous return via the skeletal muscle pump
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C
To avoid the fusion of the patella to the femur
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D
To increase the activation of the quadriceps femoris
16
Which sensory system is the most critical for maintaining equilibrium during rapid, disorienting stage rotations (pirouettes)?
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A
Proprioceptive system
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B
Vestibular system
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C
Visual tracking system
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D
Auditory system
17
What is the biochemical effect of 'vocal warm-ups' on the vocal fold mucosa?
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A
Increased viscosity of the lubricating mucus
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B
Decreased vascular permeability
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C
Increased elasticity of the hyaluronic acid within the lamina propria
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D
Depletion of glycogen stores in the thyroarytenoid
18
In the context of theatrical lighting and health, what is the primary risk of long-term exposure to high-intensity ultraviolet (UV) emission from stage lights?
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A
Corneal photokeratitis
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B
Increased production of vitamin D
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C
Degradation of the optic nerve
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D
Suppression of the pineal gland
19
What is the specific anatomical term for the 'stage whisper' mechanism that produces sound without vocal fold vibration?
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A
Glottal fry
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B
Aphonic whispering
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C
Breathy phonation
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D
Turbulent glottic airflow
20
Which muscle is the primary mover during the 'plie' exercise, providing the stability required for dramatic lower-body physical expression?
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A
Gluteus medius
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B
Quadriceps femoris
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C
Gastrocnemius
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D
Sartorius
