Health and Society
167 flashcards · Biology · by Luis Ángel López Chávez
What is health?
It is a state of complete physical, mental and social well-being and not merely the abscemce of disease or infirmity.
What is the acronym for WHO?
World Health Organization
Promotion of health and prevention of exposure of diseases is what level of prevention?
Primary Prevention
What level of prevention is where there is slow progression of disease and there is an attempt of stopping it?
Secondary Prevention
What level of prevention is where there is an attempt to live with the disease and stop further damage?
Tertiary Prevention
What is the Natural History of Disease?
It is the progression of a disease in an individual overtime and when there is no treatment
What are the 4 stages of the Natural History of Disease?
Susceptibility Pre-symptomatic (sub-clinical) disease Clinical disease Recovery, Disability or Death
It means to how vulnerable you are to a disease. (You still do not have a disease)
Susceptibility
You now have a disease but there are no symptoms
Pre-symptomatic (Sub-clinical) disease
What is a symptom?
It is something you feel
What is a disability?
It is a limitation of a person´s activities including his role as a parent, wage earner, etc.
What is immunity?
It is the capacity of the organism to remove or to eliminate strange substances, pathogenic and cancerous cells.
What are the 3 main types of pathogens?
Bacteria, Viruses and Fungi
What are the 3 lines of barriers of the immune system?
Protective Barrier (Skin and Mucous) Eater Cells (Killer cells and Macrophages) (non-specific) Smart Cells (Antibodies, T-cells and B-cells) (specific)
What are the 2 types of immunity?
Active and Passive
What is the main difference between active and passive immunity?
The active produces while the passive receives
What are the 2 types of active immunity?
Natural (Infection) & Artificial (Vaccination)
What are the 2 types of passive immunity?
Natural (Maternal Antibodies) & Artificial (Monoclonal Antibodies)
What are the 3 anatomical planes?
Sagittal Plane Coronal Plane Transverse plane
What is this plane?
Coronal or Frontal plane
What is this plane?
Sagittal Plane
What is this plane?
Transverse Plane
What are called the 2 parts that the division creates?
Posterior (back) & Anterior (front)
What are called the 2 parts that the division creates?
Superior (up) & Inferior (down)
What are called the 2 parts that the division creates?
Left and Right
What are the 2 main cavities in the human body?
Dorsal (posterior) & Ventral (Anterior) Cavity
The dorsal cavity is divided into 2 more cavities, cranial& spinal cavities
The cranial cavity contains the cerebrum (brain) The spinal cavity contains the spinal cord The 2 cavities are continues
The ventral cavity is divided into 3 more cavities, thoracic, abdominal & pelvic cavities
The thoracic cavity surrounded by ribs, the sternum and vertebral column The abdominal cavity is found between the diaphragm and the border of the pelvis. The pelvic cavity is found below the border of the pelvis.
What are the 2 cavities inside the thoracic cavity?
Pericardial Cavity surrounds the heart 2 Pleural Cavities surround the lungs
What are the 4 main types of tissues?
Epilethial Connective Muscular Nervous
What are the functions of the Epilethial tissues?
Protection Secretion Absortion Excretion Filtration
What are the cell shapes for the Epilethial tissues?
Squaumous (flat) Cuboidal (square) Columnar (rectangular)
What ate the number of layers for the Epilethial tissues?
Simple (1 layer) Stratified (several layers) Pseudostratified (1 layer that looks like 2)
Epithelium that secretes a product is a gland
A gland can be a single epithelial cell such as a goblet cell that secretes mucus, or various cells
What are the 3 types of glands?
Exocrine (secretes products into ducts) Endocrine (secrete products into the bloodstream) Mixed (endocrine & exocrine)
Digestion takes place within a tube called the digestive tract which begins with the mouth and ends with the anus
The functions of the digestive system are Ingest Food Digest food into nutrients that can cross plasma membranes Absorb nutrients Eliminate indegestible remains
What are the 2 types of digestion?
Mechanical and Chemical
Explain mechanical digestion.
Large pieces of food become smaller pieces. It begins with the chewing of food in the mouth.
The pathway of food is: mouth, pharynx, esophagus, stomach, small intestine, large intestine.
Mouth: Receives food and starts digestion of starch Pharynx: Passageway Esophagus: Passageaway Stomach: Storage of food. Acidity kills bacteria and starts digestion of proteins. Small Intestine: Digestion of all foods and absorption of nutrients Large Intestine: Absorption of water and storage of indigestive remains.
What are the mechanical parts of the pathaway of food?
Mouth Pharynx Esophagus
What are the chemical parts of the pathaway of food?
Stomach Small Intestine Large Intestine
The mouth contains:
Tongue Roof (soft & hard palate) Teeth
It receives air from the nasal cavities and food from the mouth:
Pharynx
What are the parts if the pharynx?
Nasopharynx Oropharynx Laryngopharynx
Is a muscular tube that joins with the stomach in the abdominal cavity
Esophagus
A rhythmic contraction called peristalsis pushes the food along the digestive tract.
It is a thick-walled, J-shaped organ that lies on the left side of the abdominal cavity below the liver & the diaphragm. It is the stomach.
It is about 25cm long, the diameter varies, depending on how full it is.
The 3 parts of the small intestine are: duodenum, jejunum, and ileum
The small intestine is about 6 meters long
It absorbs nutrients and digests foods
Small intestine
It absorbs water, salts, and some vitamins
Large intestine
What are the 4 parts of the colon (large intestine)?
Ascending Transverse Descending Sigmoid
What are the 5 digestive diseases?
Gastroesophageal Reflux Gastritis/Peptic Ulcer Parasites Irritable Colon Syndrome Stones in Gallbladder/Gallstones
The stomach acid returns to the tube that connects to the mouth. It can irritare the lining of the esophagus. There is chest burns and can be provoked by obesity. The treatment includes antiacids
Gastroesophageal Reflux
Pain in the stomach, loss of appetite, burning feeling, indegestion, holes and sores in the lining of the esophagus, stomach or duodenum. The treatment includes antiacids.
Gastritis/Peptic Ulcer
Loss of appetite, fatigue, never feeling full after meals. Caused by the touching of feces. Treatment includes deworming
Parasites
It makes the skin or sclera yellow. There are solid particles in the gallbladder. Treatment includes a balances diet.
Stones in Gallbladder/Gallstones
Occurs in the large intestine and there is abdominal pain or discomfort. You are constipated
Irritable Colon Syndrome
It produces bile and filters blood
Liver
It stores bile and is located under the liver
Gallbladder
What are the 4 accessory organs of the digestive system?
Pancreas Liver Gallbladder Salivary Glands
It produces insulin, enzymes and hormones. Regulates blood sugar
Pancreas
What are the functions of the respiratory system?
Entrance and exit of air into and out of the lungs Exchange of gases between air and blood Exchange of gases blood and tissue fluid Production of ATP cells
It filters, warms, and moistens air. It has 2 cavities that are separated by the septum
Nose
It connects the nasal and oral cavities to the larynx
Pharynx
It is the structure between pharynx and trachea, Contains vocal cords,
Larynx
Connects the larynx to the bronchi
Trachea
Soft paired organs that contain the bronchial tree
Lungs
The trachea divides into 2
Bronchi
Each bronchi have many smaller branches called:
Bronchioles
Site of gas exchange between air and blood. They are like air sacs and are surrounded by capillaries
Alveoli
What are the types of Respiratory Volumes?
Tidal Volume Vital Capacity Residual Volume
Type of respiratory volume in which air normally moves in and out of the lungs
Tidal Volume
Type of respiratory volume in which its the maximum volume of air that can be moved out in and out
Vital Capacity
Type of respiratory volume in which its the air that remains in the lungs and is no longer useful for gas exchange
Residual Volume
What is called the 2 membranes that surround the lungs?
Pleura
It is considered the active phase of breathing
Inspiration
It is considered passive phase of breathing
Expiration
Phase in which the diaphragm and the external intercostals muscles contract
Inspiration
The rib cage moves upward and outwards
Inspiration
The rib cage moves down and inwards
Expiration
Type of respiration that refers to the exchange of gases between air in the alveoli and blood in the capillaries.
External Respiration
Type of respiration that refers to the exchange of gases between capillaries and tissue fluid
Internal Respiration
Respiratory disorder in which the airways are inflamed and filled with mucus. Is caused by smoking.
Chronical Bronchitis
Respiratory disorder which provokes chest pains and is caused by a viral or bacterial infection. Alveoli fiil with thick fluid.
Pneumonia
Respiratory disorder that provokes wheezing and causes spasms and irritated airways.
Asthma
One of its symptoms is chronic bronchitis. Alveoli are damaged and airways are narrowed.
Ephysema
It is a mild infection, provokes sneezing and a runny nose. It is caused by a virus
Common Cold
Function of the cardiovascular system
Circulates blood throughout the body.
Blood carries gases & nutrients TO and FROM the tissues
What are the 3 types of blood vessels?
Arteries Capillaries Veins
Which blood vessel takes blood AWAY from the heart and to the capillaries?
Arteries
Which blood vessel takes blood BACK to the heart from the capillaries?
Veins
Which blood vessel is the site of gas and nutrient exchange?
Capillaries
The arteries have oxigenated blood, while the veins have non-oxigenated blood
Which side of the heart is bigger, right or left?
Right is bigger
The atrium and the ventricle of the right side are separated by the tricuspid valve
Mitral or tricuspid
The atrium and the ventricle of the left side are separated by the mitral valve
Mitral or tricuspid
Side which pumps oxigenated blood to the body.
Left Side
Side which pumps non-oxigenated blood to the lungs.
Right Side
Which is the only artery that carries non-oxigenated blood?
Pulmonary Artery