Fundamentals of A&P Flashcards
Anatomy
Describes the structures of the body in addition to what they are made of, where they are located, and associated structures
Physiology
Is the study of functions of anatomical structures in addition to the individual and cooperative functions
Human anatomy is also known as
Gross anatomy or macroscopic anatomy
Human anatomy examines…
Large, visible structures
Developmental anatomy
is from conception to adulthood, including embryology
Microscopic anatomy
Examines cells and molecules
Cytology
The study of cells or a cluster of cells
Most common form of cancer cytology testing
Pap smears
Histology
The study of tissues
Physiology is to pathophysiology as Histology is to?
pathology
Physiology and Histology are both studies of…
normalcy whereas pathophysiology and pathology are abnormal
Human physiology is…
The study of how the human body’s systems and functions work together to maintain a stable internal environment
Cell physiology
Looks at the functions of cells
Organ physiology
Looks at the functions of specific organs
Systemic physiology
Looks at the functions of organ systems
Pathological physiology
Looks at the effects of diseases on organs or systems
What are the level of organizations?
Atoms -> Molecules -> Macromolecules -> Cells -> Tissue -> Organ -> Organ system -> Organism
Surface anatomy
Locating structures on or near the body surface
Anatomical landmarks
Anatomical position, supine, prone
Anatomical position
Hands at sides, palms forward
*this is always the reference
Supine
Lying down, face up
Prone
Lying down, face down
What’s a lesion?
Anything that’s a problem internally or externally
…ends up being a tumor, etc.
Ocular/orbital refers to the
eye
Otic refers to the
ear
Buccal refers to the
cheek
Cervical refers to the
neck
Thoracic refers to the
thorax/chest
…anything from the lungs up
Mammary refers to the
breast
Umbilical refers to the
navel
What does the diaphragm do?
It changes the volume of the lungs, which are muscle
The thoracic, mammary, abdominal, and umbilical all refer to the
trunk
Cephalic refers to the
head
Mental refers to the
chin
Axillary refers to the
armpit
Brachial refers to the
arm
Carpal refers to the
wrist
Manual refers to the
hand
Pollex refers to the
thumb
Digits refers to the
fingers and toes
Inguinal refers to the
groin, the v creases
What is inspected in the inguinal (groin) area?
A Hernia
Patellar refers to the
kneecap
Femoral refers to the
thigh
Crural refers to the
leg
Tarsal refers to the
ankle
Hallux refers to the
great toe
Pedal refers to the
foot
Anterior is also known as
Ventral
Posterior is also known as
Dorsal
N.A.V.L stands for?
Nerves, arteries, veins, lymphatic
Acromial refers to the
shoulder
Dorsal refers to the
back
Olecranal refers to the
back of elbow
Lumbar refers to the
loin (the curve of your back)
Gluteal refers to the
buttock
Popliteal refers to the
back of the knee
Sural refers to the
calf
Calcaneal refers to the
heal of foot
Plantar refers to the
sole of foot
What’s the degenerative condition that affects the plantar?
Plantar fasciitis
Anatomical regions
Abdominopelvic quadrants & abdominopelvic regions
Abdominopelvic quadrants
RUQ, LUQ, RLQ, LLQ
Abdominopelvic regions
R hypochondriac region, R lumbar, R inguinal, epigastric, umbilical, hypogastric (pubic ), L hypochondriac region, L lumbar, L inguinal
Superficial is a directional term that refers to the
surface at, near, or relatively close to the body surface
Deep is a directional term that refers to
toward the interior of the body; farther from the surface
Essential functions of body cavities are to
protect organs from shocks and impacts and to permit significant changes in size and shape of internal organs
The coelom refers to the
ventral body cavity
What’s the function of the serous membrane (serosa)?
To cover organs and line body cavities and consists of visceral and parietal layers
Visceral serosa lines…?
Lines the outer part of the organ within the cavity
Parietal serosa lines…?
Lines the body cavity
Pleural cavity
A fluid filled space that surrounds the lungs
Mediastinum
The upper portion filled with blood vessels, trachea, esophagus, and thymus
Lower portion of the mediastinum contains…
Pericardial cavity in which the heart is located within
The abdominopelvic cavity consists of the…
Peritoneal cavity, Abdominal cavity and the Pelvic cavity
Peritoneal Cavity
Chamber within abdominopelvic cavity
Parietal peritoneum lines the internal body wall
Visceral peritoneum covers the organs
Abdominal Cavity
The superior portion
Diaphragm to top of pelvic bones
Contains digestive organs
Pelvic Cavity
The inferior portion
Medial to pelvic bones
Contains reproductive organs, rectum, and bladder
Homeostasis
All body systems working together to maintain a stable internal environment, returning to the normal values
Systems respond to external and internal changes to keep variables within normal ranges
A state of equilibrium
Ex.: body temperature, pH, electrolytes, fluid balance
What are the 2 types of Homeostatic regulation?
Autoregulation & Extrinsic regulations
Autoregulation
The automatic response in a cell, tissue, or organ to an environmental change, the “local control”
Extrinsic Regulation
Responses controlled by nervous and endocrine systems, the “federal control”
A homeostatic regulatory mechanism consists of 3 things…
A receptor, control center, and effector to limit fluctuations of internal conditions to keep them close to a set point, or desired value
Receptor
Receives the stimulus
Control Center
Processes the signal and sends instructions
Effector
Carries out instructions
Negative Feedback
The response of the effector negates the stimulus
Body is brought back into homeostasis
Normal range is maintained
Positive Feedback
The initial stimulus produces a response that amplifies the original change in conditions, the body is moved away from homeostasis and a normal range is not maintained
A positive feedback loop completes a dangerous
process quickly to reestablish homeostasis
Ex.: blood clotting
Systems integration
Systems work together to maintain homeostasis
Dynamic equilibrium
Continual adaptation
Failure to keep physiological systems working to maintain balance result in…
Disease