Unit 1: Body Plan and Organization Flashcards
Is the scientific study of STRUCTURES and the relationship of structures to each other (FORM)
anatomy
is the scientific study of how body structures and systems function to perform life processes (FUNCTION)
Physiology
What are the six levels of Structural Organization from smallest to largest?
Chemical Cellular Tissue Organ System Organism
includes all elements (atoms) and molecules essential for maintaining life.
Chemical level
what are the four most common elements in the body?
Carbon Hydrogen Oxygen Nitrgoen (CHON)
groups of similar cells found together performing a specific function.
tissue level
what are the four primary tissues?
epithelial
connective
muscle
nervous
structures composed of two or more different tissues having specific functions and recognizable shapes.
Organ level
groups of organs which work together for a common function
system level
is a group of organ systems which function together to meet the needs of the individual
Organism
is the total of all chemical processes that occur in the body
Metabolism
uses energy to SYNTHESIZE or manufacture new cells
Anabolism
is the BREAKDOWN of tissues or chemicals to produce energy
Catabolism
means towards the back
posterior
means to the front
anterior
means towards the middle
medial
means towards the side
lateral
means closest tot he trunk or main party of the body
proximal
means away from the trunk or the main party of the body
distal
means towards the surface
superficial
means away from the surface
deep
means upper or above
superior
means under or below
inferior
moving a body party away from the midline
abduction
moving a body part toward the midline
adduction
moving a body party in a circular motion
circumduction
lowering a body part
depression
bending the foot upward by flexing the foot at the ankle
dorsiflexion
raising a body part
elevation
turning the foot so the sole is outward
eversion
increasing the joint angle to straighten body parts
extension
decreasing the joint angle to bring two body parts close together
flexion
excessive extension of body parts at a joint; moving a body part beyond normal anatomical position
Hyperextension
turning the foot so the sole of the foot is inward
inversion
bending the foot downward by extending the foot at the angkle
Plantar flexion
turning the hand with the palm down or turning the foot so the medial margin is lowered
pronation (prone)
moving a body part forward
protraction
moving a body part backward
retraction
turning the hand with the palm upward or turning the foot so the medial margin is raised
supination (supine)
vertical plane; divides the body or an organ into right and left sections
Sagittal Plane
vertical plane; divides the body or an organ into EQUAL right and left halves
Midsagittal Plane
horizontal plane dividing the body or an organ into upper and lower sections
Transverse (Horizontal) Plane
vertical plane dividing the body or an organ into front and back sections
Frontal (Coronal) Plane
located on the posterior/dorsal surface of the body and surrounds the brain and spinal cord
dorsal cavity
the cavity that is formed by the vertebrae of the spine and surrounds spinal cord
Spinal (vertebral) cavity
the bones of the skull crate this cavity to protect the brain
Cranial Cavity
What are the two cavities that make up the dorsal cavity
Spinal
Cranial
located in the anterior surface of the body and contains the thoracic cavity and the abdominopelvic cavity.
Ventral Cavity
portion of the ventral cavity superior to the diaphragm
Thoracic cavity
are the spaces surrounding each lung
Pleural cavity
broad, middle tissue mass of the thoracic cavity dividing the lungs into two cavities
Mediastinum
What is located in the Mediastinum?
aorta, esophagus, trachea, thymus, pericardial, and other great blood vessels
is the space in which the heart is located
pericardial cavity
portion of the ventral cavity inferior to the diaphragm
abdominopelvic cavity
superior portion of the abdominopelvic cavity. extends from the diaphragm to the superior margin of the pelvic girdle
Abdominal Cavity
surrounded by the pelvic bones
pelvic cavity
what are the four quadrants?
RUQ
RLQ
LUQ
LLQ
what is contained in the RUQ
liver
right kidney
gallbladder
what is contained in the LUQ
spleen
stomach
left kidney
What is contained in the RLQ
cecum
appendix
right ovary
what is contained in the LLQ
left ovary
is the body’s ability to maintain a stable internal environment despite changes that occur internally or externally
homeostasis
an imbalance in the body’s internal environment. Anything that disrupts homeostasis
stress
any stress that changes a controlled condition
stimulus
monitors changes in the controlled condition and sends information (input) to the control center
receptor
an area in the body that receives information about the status of a controlled condition
control center
receives information from the control center and produces a response
effector
the action of the effector
response
reaction of the body (output0 counteracts the stress (input) in order to restore homeostasis. Reverse the effect of the change
negative feedback mechanism
what are examples of Negative Feedback mechanisms
blood glucose
blood pressure
body temperature
MANY others
reaction of the body is stimulated or intesified by the input. the response enhances the stimulus
Positive feedback mechanism
What are examples of Positive Feedback mechanisms?
Breastfeeding
Labor
Blood clotting