Module 1 Flashcards
Anatomy is the study of what
Structure
The word anatomy is derived from Greek and means BLANK
To cut apart
(In order to ascertain their position, relations, structure and function)
Four areas of anatomy
*Histology (microscopic features)
*Gross anatomy (macroscopic features)
*Neuroanatomy
Embryology
*means focus on in this course
Where is the smallest bone and muscle in your body located?
Middle ear and their combined size is that of a dime
What does the average human brain weigh?
The average human brain weighs 3 pounds, a similar weight to the liver
How many times its size can the human adult stomach expand?
4 times, holding nearly 2 Litres
How many feet long is the digestive tract?
Over 29 feet long
What organ is roughly the same size as your fist?
Your heart
Can humans survive with just 1 lung?
Yes!
The organization of a body structure is instrumental as it means by which a specific function is carried out
In anatomy, blank and blank are inextricably linked
Form and function
A complex network of what three things allow for life?
Cells, tissues, organs
10 major systems responsible for body functions
- Skeletal
-create infrastructure with facilitate other systems (provides anchor points for muscular system)
-over 200 bones
-hold body together
-give it shape
-protect organs and tissues - Muscular
-create infrastructure with facilitate other systems (cardiovascular system nestled within muscles)
-three types of muscles; skeletal, smooth, cardiac
-facilitate movement
-found throughout whole body - Cardiovascular
-create infrastructure with facilitate other systems
-pipeline including heart, bloodline and blood
-AKA circulatory system
-Delivers oxygen, white blood cells, hormones and nutrients throughout body - Nervous
-create infrastructure with facilitate other systems
-communication of nerve cells
-used to transmit information and coordinate body functions
-comprised of brain (hub of century and intellectual activity), spinal cord, cranial nerves, spinal nerves
From the above the systems created by neurons, blood, muscles and bones allow for regulatory system
5. Endocrine
-regulatory system
-series of glands who use info carried from nervous system to regulate body processes
-thanks to neuron connection aware of amount of hormones and other chemicals to produce
-chemicals then distributed throughout body by cardiovascular system
-ex. Thyroid
6. Lymphatic
-regulatory system
-collection of lymph nodes and vessels which regulate body defences
-AKA immune system
-use neuro pathways transmit information about affected areas of body then sends healing agents like white blood cells via blood stream
7. Urinary
-regulatory system
-includes: kidneys, urethra, bladder, ureters
-AKA renal system
-maintains electrolyte levels and filters waste from blood through blood vessels and expelled as urine
All above system require energy to function and where respiratory system comes into play
- Digestive
-energy system
-30 Ft series of organs converting food into fuel
-food enters through mouth, moves into esophogus, stomach and intestines, nutrients absorbed and solid waste expelled through anal canal, end of digestive tract system - Respiratory
-energy system
-group of passageways and organs that extract oxygen from air
-air enter through nose/nasal cavities, travel down throat, transported to lungs.
-lung extract oxygen for use and expel carbon dioxide when exhale
All systems began with reproductive system
- Reproductive
-responsible for creating life
-primary organs differ between sexes
Women-ovaries, fallopian tube, uterus, and vagina
Men- testes, sperm channel
-together fertilization occurs, organs formed, child born
What are the 2 types of structures of the human body that can be organized into fundamental levels
Microscopic (small) and macroscopic copic (large)
Organization of the human body
Chemical level-a molecule is a group of atoms bonded together
Cellular level-cells are the smallest living structure and are formed from atoms and molecules
Tissue level-similar cells that perform specialized functions
Organ level-two or more tissues that work together to perform complex functions
Organ system level-consists of related organs that work together to coordinate activities and achieve common functions
Organismal level-all body systems function in a single living human