Intro To The Human Body Flashcards
The science of body structures and the relationship among them.
Anatomy
The science of body functions and how the body parts work.
Physiology
What are the six levels of structural organization?
- ) Chemical Level- ex:atoms
- )Cellular Level- smooth muscle cell
- ) Tissue Level- smooth muscle tissue
- ) Organ Level-stomach
- ) System Level- Digestive system
- ) Organismal Level-individual
What are the 6 basic life processes that separate living things from non living things?
- ) Metabolism
- ) Responsiveness
- ) Movement
- ) Growth
- )Differentiation
- ) Reproduction
The condition of equilibrium (balance) in the body.
Homeostasis
Fluid within cells, abbreviated ICF.
Intracellular fluid
Fluid outside of the body cells, ECF.
Extracellular Fluid
The ECF that fills narrow spaces between cells of tissue.
Interstitial fluid
ECF within blood vessels
Blood plasma
ECF within lymphatic vessels.
Lymph
ECF around the brain and spinal cord.
Cerebrospinal fluid
ECF in joints.
Synovial fluid
ECF in the eyes.
Aqueous humor
Smallest blood vessels in the body.
Blood capillaries
The nervous system regulates homeostasis by sending electrical signals known as…
Nerve impulses (action potentials)
A cycle of events in which the status of a body condition is monitored, evaluated, changed, remonitored, reevaluated..
Feedback system (feedback loop)
A monitored variable
Controlled condition
A disruption to the controlled condition is called a
Stimulus
3 basic components of a Feedback System:
- )receptor - body structure that monitors any change and sends input to a control center
- ) control center- the brain. Evaluates input and sends output for responses. The Efferent Pathway-output flowing from the control center.
- )Effector- body structure that receives output from control center and generates response to change the condition
System that reverses a change in a controlled condition.
Ex: BP rising, receptors send signal to brain(control center), thus sending output to the heart and blood vessels (effectors). Heart rate decreases and blood vessels dilate which causes the response to decrease BP.
Negative Feedback System
System that strengthens and reinforces the change in the body’s controlled condition.
Ex: childbirth and labor..continuing contractions.
Positive Feedback
An abnormality of structure or function.
Disorder
More specific term for an illness characterized by a set of signs and symptoms.
Disease
A disease that effects one part of the body.
Ex: sinus infection
Local disease
Disease that effects the entire body or multiple parts of it.
Ex: influenza
Systemic disease
Subjective changes in the body functions that are not apparent to an observer.
Ex: nausea, headache, anxiety
Symptoms
Objective changes that can be observed.
Ex: rash, swelling
Signs
The science that deals with why, when, and where diseases occur and how they are transmitted.
Epidemiology
Science that deals with the effects and uses of drugs in the treatment of disease.
Pharmacology
The science and skill of distinguishing one disorder or disease from another.
Diagnosis
The position where the subject stands erect with feet on the floor, eyes forward, limbs at their side, palms facing forward.
Anatomical position
The position where the body is lying facedown.
Prone
Position where the body is lying faceup.
Supine
5 Regional names for the body:
- ) head
- ) neck
- ) trunk
- ) upper limbs
- ) lower limbs