Ch. 1 Lecture Notes Review Flashcards
Zygote
fertilized egg
differentiation
process where cells develop special characteristics for structure & function
Biology
Study of life
Anatomy
study of internal and external structures and the relationship between these structures
ana-
up or apart
tomy
to cut
gross anatomy
study of visible features
microscopic anatomy
study of structures that require magnification
cytology
study of cellular structure and function
cyto
cell
-logy
study of
Histology
study of tissues
histo
tissue
Physiology
study of how living organisms function
physio-
nature / function
Human physiology
study of functions of the human body
Cellular physiology
study of cellular functions
Pathological physiology
study of the effects of diseases on organ and organ system functions
Chemical Level
atoms–monomer–polymer
cellular level
cellular structures (organelles) that give rise to individual cells
tissue level
similar cells working together to carry out a specialized function
organ level
more than one tissue type working together to carry out a specialized function
organ system level
consists of several organs working together
organism level
consists of all organ systems working together
Outer surface of the human body
Integumentary system
Bones of the body
Skeletal system
Regulatory system
Nervous system
Glands that secrete hormones to regulate organ system
Endocrine system
Transport of gases nutrients
Cardiovascular system
Host defense
Lymphatic system
Gas exchange
Respiratory system
Food processing and absorption of nutrients
Digestive system
Elimination of waste products derived from your blood
Urinary system
Production of sperm and eggs
Reproductive system
Homeostasis
presence of a stable internal environment
Homeostatic Regulation
physiological adjustments by organ systems to maintain homeostasis
What are 3 things are involved in Homeostatic Regulation?
- Receptor 2. Control Center 3. Effector
Receptor
detects stimuli or changes in the surrounding environment
Stimulus
A change the we see, smell, hear or feel
Control Center
receives and processes information transmitted from the receptor
Effector
Carries out commands from the control center Produces a change that maintains homeostasis.
Homeostatic Regulation involves ______ ______
feedback mechanisms
Negative Feedback
original stimulus is opposed (negatively effected) by the effector response Minimizes changes to maintain homeostasis.
Positive Feedback
original stimulus is reinforced (not opposed) by the effector response. Increases changes that deviate from homeostasis.
Supine
lying down, face up
Prone
lying down, face down
Cephalon
head
Cervicis
neck
Thoracis
Thorax or chest
Regions of the human body
Cephalic region Cervical region Thoracic region
Planes and sections
Transverse / cross section Frontal / coronal Sagittal
Divides body into a top and bottom
Transverse Plane
Divides body into a front and back
Frontal Plane
Divides body into a left and right side
Sagittal Plane
Attached to the inner walls of the body cavity
Parietal
Visceral
Attached to the organ (viscera) visceral layer is part of the organ
Body cavities
internal chambers that hold organs
Body cavities funtion in …..
protecting organs from physical stress allowing for changes in size and shape
Ventral Body Cavity
Superior Thoracic Cavity Inferior Abdominopelvic Cavity
Serous membrane is unique to …….
Ventral body cavity
Thoracic Cavity consists of ….
Single pericardial cavity Two Pleural Cavity
Serous membrane that surrounds the heart is called ______
pericardium
Pericardium covering the heart is the
visceral pericardium
Pericardium lining the wall of the thoracic cavity is the
parietal pericardium
Which cavity surrounds the lungs
Pleural cavity