@file_pinax -> documents -> @thesis:document {title: "The Influence of the Nervous System on the Functions of Respiration and Digestion", creator: @ellis, year: @date_1851, institution: @drexel_university, language: "en", subjects: [@nervous_system, @respiration, @digestion, @physiology, @medicine]}

@ellis:person {full_name: "Ellis", role: "author"}

@nervous_system:concept {description: "Network of nerves regulating bodily functions"}
@respiration:concept {description: "Process of gas exchange in the lungs"}
@digestion:concept {description: "Process of breaking down food to absorb nutrients"}
@physiology:concept {description: "Study of normal functions of living organisms"}
@medicine:concept {description: "Science and practice of diagnosing, treating, and preventing disease"}

@nervous_system -> consists of -> [@cerebro_spinal_system, @sympathetic_system]

@cerebro_spinal_system:concept {description: "Central part of the nervous system comprising brain and spinal cord"}
@sympathetic_system:concept {description: "Ganglionic part of the nervous system extending from cranium to pelvis"}

@cerebro_spinal_system -> includes -> [@brain, @spinal_cord]

@brain:concept {description: "Organ of the central nervous system located in the skull"}
@spinal_cord:concept {description: "Continuation of the brainstem running within the vertebral column"}

@medulla_oblongata:concept {description: "Upper extremity of the spinal cord; centre of respiratory movements"}
@medulla_oblongata -> centre of -> @respiration

@par_vagum:concept {description: "Nerve bundle extending from the medulla to the pelvis, part of the sympathetic system"}
@par_vagum -> includes -> [@superior_laryngeal_nerve, @inferior_laryngeal_nerve]

@superior_laryngeal_nerve:concept {description: "Branch of the par vagum controlling expiratory response to irritants"}
@inferior_laryngeal_nerve:concept {description: "Branch of the par vagum responsible for glottis closure"}

@phrenic_nerve:concept {description: "Motor nerve arising from the upper spinal cord, innervates the diaphragm"}
@intercostal_nerve:concept {description: "Motor nerves originating lower in the spinal cord, innervate intercostal muscles"}
@facial_nerve:concept {description: "Nerve arising from the medulla oblongata, involved in facial expression"}
@spinal_accessory_nerve:concept {description: "Nerve arising from the medulla oblongata, supplies sternocleidomastoid and trapezius"}

@dr_reid:person {full_name: "Dr. Reid"}
@experiment_reid:document {subject: "kitten respiration experiment", result: "Inspirations fell from 100/min to 40/min after encephalon removal; further drop to 3‑4/min after vagus cut"} 
@dr_reid -> performed -> @experiment_reid

@dr_rea:person {full_name: "Dr. Rea"}
@experiment_rea:document {finding: "Division of the inferior laryngeal or par vagum above its origin causes paralysis of the glottis"} 
@dr_rea -> performed -> @experiment_rea

@valentine:person {full_name: "Valentine"}
@influence_of_nerves_on_glottis:concept {description: "Stimulus on mucous surfaces of bronchi induces expiratory movements"} 
@valentine -> proved -> @influence_of_nerves_on_glottis

@dr_foster:person {full_name: "Dr. Foster"}
@case_foster:document {subject: "female teachers with respiratory weakness due to nervous exhaustion", recommendation: "rest, nourishing diet, tonic medicines (especially ferruginous preparations)"} 
@dr_foster -> described -> @case_foster

@file_a072_1851ellis_002_jpg -> mentions -> [@nervous_system, @physiology, @medicine]
@file_a072_1851ellis_003_jpg -> mentions -> [@medulla_oblongata, @par_vagum, @respiration]
@file_a072_1851ellis_004_jpg -> mentions -> [@dr_reid, @encephalon, @vagus, @respiration]
@file_a072_1851ellis_005_jpg -> mentions -> [@sir_charles_bell, @phrenic_nerve, @intercostal_nerve, @facial_nerve, @spinal_accessory_nerve]
@sir_charles_bell:person {full_name: "Sir Charles Bell", contribution: "grouped respiratory nerves"}
@file_a072_1851ellis_006_jpg -> mentions -> [@superior_laryngeal_nerve, @inferior_laryngeal_nerve, @glottis]
@glottis:concept {description: "Opening between the vocal cords controlling airflow"}
@file_a072_1851ellis_007_jpg -> mentions -> [@dr_rea, @valentine, @glottis, @bronchi]
@file_a072_1851ellis_008_jpg -> mentions -> [@lungs, @blood, @oxygen, @circulatory_system, @vascularity, @nutrient_materials]
@lungs:concept {description: "Organs of respiration supplying oxygen to the blood"}
@blood:concept {description: "Fluid that transports oxygen and nutrients"}
@oxygen:concept {description: "Gas essential for cellular respiration"}
@circulatory_system:concept {description: "System that transports blood throughout the body"}
@vascularity:concept {description: "Degree of blood vessel supply to tissues"}
@nutrient_materials:concept {description: "Substances derived from digestion used by tissues"}
@file_a072_1851ellis_009_jpg -> mentions -> [@respiration, @nervous_system, @calorification, @temperature, @nutrition]
@calorification:concept {description: "Process of heat production in the body"}
@temperature:concept {description: "Measure of heat within the body"}
@nutrition:concept {description: "Supply of nutrients to sustain life"}
@file_a072_1851ellis_010_jpg -> mentions -> [@adipose_tissue, @muscular_system, @medulla_oblongata, @respiratory_muscles, @dynamic_power]
@adipose_tissue:concept {description: "Body fat"}
@muscular_system:concept {description: "System of muscles enabling movement"}
@dynamic_power:concept {description: "Force generated by nervous and muscular activity"}
@file_a072_1851ellis_011_jpg -> mentions -> [@dr_foster, @female_teachers, @rest, @nourishing_diet, @tonic_medicines]
@female_teachers:concept {description: "Women employed as school teachers, noted as susceptible to respiratory exhaustion"}
@rest:concept {description: "Therapeutic cessation of activity"}
@nourishing_diet:concept {description: "Diet rich in nutrients to support health"}
@tonic_medicines:concept {description: "Medicinal preparations intended to strengthen the body"}