Chapter 1: Intro to Human Anatomy & Physiology Flashcards
Anatomy
branch of science dealing with the form and structure of body parts
Physiology
branch of science that studies body functions
Structures
the morphology of body parts - their forms & organizations
Functions
consideration of what body parts do and how they do it
Human Organism
the construction of anatomical structures into a well-organized unit, operating as a whole
Atoms
smallest particle of an element that has the properties of that element
Subatomic particles
small parts of an atom
Molecules
particle composed of two or more joined atoms
Macromolecules
a very large molecule
Cell
the basic unit of structure & function
Organelles
part of a cell that performs a specialized function
Tissue
a group of cells
Organs
group of different tissues
Organ system
groups of organs that function closely together
Organism
interacting organ systems
Metabolism
all of the chemical reaction in cells that use or release energy
Water
most abundant substance in the body - helps with transportation & regulation of body temp.
Food
substances that provide organisms with necessary chemicals/nutrients
Oxygen
gas making up about 1/5 of the air - used in the process of releasing energy from nutrients
Heat
a form of energy that is present in our environment - product of metabolic reactions + partly controls reaction rate
Pressure
an application of force on an object or substance
Internal environment
conditions & elements that make up the inside of the body, surrounding the cells
Homeostasis
the body’s maintenance of a stable internal environment
Homeostatic mechanisms
the body’s maintaining of homeostasis through a number of self-regulating control systems
Receptors
provides information about specific stimuli in the internal environment
Control center
includes a set point, tells what a particular value should be
Effectors
a muscle or gland that effects change in the body
Negative feedback
mechanism in which build up of a product causes suppression of its synthesis
Normal range
measurements or values obtained from a statistical sample of the healthy population for reference or comparison
Axial portion
pertaining to the head, neck, and trunk
Appendicular portion
pertaining to the upper & lower limbs
Cranial cavity
hollow space in the cranium containing the brain
Vertebral canal
hollow space within the vertebrae containing the spinal cord
Thoracic cavity
hollow place within the chest
Abdominopelvic cavity
space between the diaphragm and the lower potion of the trunk of the body
Viscera
organs found within a body cavity
Diaphragm
sheetlike structure largely composed of skeletal muscle and connective tissue that separates the thoracic & abdominal cavities
Mediastinum
the region separating the thorax into two compartments that contains the abdominal viscera
Abdominal cavity
space between the diaphragm and the pelvic inlet that contains the abdominal viscera
Pelvic cavity
hollow place within the ring formed by the sacrum & coxae
Serous membranes
membrane that lines a cavity without an opening to the outside of the body
pleural membranes
serous membrane that encloses the lungs and lines the chest wall
pericardial membranes
pertaining to the pericardium
peritoneal membranes
pertaining to the peritoneum
Integumentary System
pertaining to the skin & its accessory organs
Skeletal System
consists of bones, ligaments, cartilages that bind bones together at joints
Muscular system
provides force to move body parts and maintains posture + body heat
Nervous system
utilization of nerve impulses to communicate with one another and other muscles + glands
endocrine system
includes all the glands that secrete chemical messengers aka hormones
cardiovascular system
includes the heart, arteries, capillaries, veins, & blood
lymphatic system
transports some tissue fluid back to the bloodstream and carries certain fatty substances away from the digestive organs
digestive system
receives food and then breaks down food molecules into simpler forms that can be passed through cell membranes to be absorbed
respiratory system
takes air in & out and exchanges gases between the blood & air
urinary system
involves removing waste & assists in maintaining water & electrolyte balance
excretion
elimination of metabolic wastes
reproduction
the process of producing offspring
reproductive system
system producing whole new organisms
anatomical position
body posture with the body erect, the face forward, the arms at the sides with the palms facing forward and the toes
superior
part is above another part/closer to the head
inferior
part below another part/toward the feet
anterior
toward the front
posterior
toward the back
medial
imaginary midline dividing body into equal left and right halves
lateral
toward the side with respect to the imaginary midline
ipsilateral
pertains to the same side
contralateral
refers to the opposite side
proximal
describes a part that is closer to the trunk or closer to another specified point of reference
distal
farther from the trunk
superficial
situated near the surface
peripheral
outward or near the surface
sagittal
a lengthwise cut that divides the body into right and left portions
transverse
cut that divides the body into superior & inferior portions
coronal
section that divides the body into anterior & posterior portions
epigastric region
upper middle region
left & right hypochondriac regions
on the left & right sides of the epigastric region
Umbilical region
the central region
left & right lumbar regions
on the left & right sides of the umbilical region
hypogastric region
the lower middle region
left & right iliac/inguinal regions
on the left & right sides of the hypogastric region
cardiology
branch of medical science dealing with the heart & heart diseases
cardiology
branch of medical science dealing with the heart & heart diseases
dermatology
study of skin & diseases
endocrinology
study of hormones, hormone secreting glands, and associated diseases
epidemiology
study of the factors that contribute to determining the distribution and frequency of health-related conditions within a defined human population
gastroenterology
study of the stomach & intestines, as well as their diseases
geriatrics
branch of medicine dealing with older individuals and their medical problems
gerontology
study of the process of aging and the various problems of older individuals
gynecology
study of the female reproductive system and its diseases
hematology
study of blood and blood diseases
histology
study of the structure and function of the tissues
immunology
study of the body’s resistance to disease
neonatology
study of newborns & the treatment of their disorders
nephrology
study of the structure, function, and diseases of the kidneys
neurology
study of the nervous system in health and disease
obstetrics
branch of medicine dealing with pregnancy and childbirth
oncology
study of cancers
ophthalmology
study of the eye and eye diseases
orthopedics
branch of medicine dealing with muscular & skeletal systems & their problems
otolaryngology
study of the ear, throat, larynx, and their diseases
pathology
study of the structural and functional changes within the body associated with disease
pediatrics
branch of medicine dealing with children and their diseases
pharmacology
study of drugs and their uses in the treatment of diseases
podiatry
study of the care and treatment of the feet
psychiatry
branch of medicine dealing with the mind and its disorders
radiology
study of x-rays and radioactive substances as well as their uses in diagnosing and treating diseases
toxicology
study of poisonous substances & their effects on physiology
urology
branch of medicine dealing with the urinary and male reproductive systems and their diseases