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Chapters 1-2 Honors Anatomy
1st test. 8/25
67
Anatomy
11th Grade
08/24/2009

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Term
What is anatomy?
Definition
the science of body structures and the relationships among them
Term
What is the study of physiology?
Definition
The study of body functions
Term
What is the relationship b/t structure and function?
Definition
Structure determines function; form follows function
Term
What do histologists do?
Definition
They study the microscopic structure of tissues
Term
What are the levels of the organization of the human body?
Definition
chemical (atom>molecule) > cellular > tissue > organ > organ system > organism
Term
What is a cell?
Definition
The basic structural and functional units of an organism
Term
What is an organ?
Definition
2 or more different types of tissues with specific function; usually in recognizable shape
Term
What is metabolism?
Definition
sum of all the chemical processes that occur in the body; catabolism and anabolism
Term
What regulates body homeostasis?
Definition
nervous and endocrine system
Term
An explosion sends shrapnel through abdominal cavity. What organs will be most affected?
Definition
digestion; absorption and processing of nutrients
Term
What is thermogenesis?
Definition
process by which the body generates heat or energy by raising the metabolic rate above normal
Term
Assessment of body structure and unction by touching body surfaces with the hands is
Definition
palpitation
Term
What are characteristics of life
Definition
organ systems are NOT isolated
Term
What is the sum of all chemical reactions that occur in the body?
Definition
metabolism
Term
What is involved in the differentiation of embryonic mesenchymal cells in forming the skeleton? (#15)
Definition
differentiation
Term
What is involved in a post-mortem examination, or autopsy?
Definition
dissection of body and internal organs; used to confirm or discover cause of death; sometimes used in crime scene investigations
Term
What is homeostasis?
Definition
dynamic equilibrium; due to ceaseless interplay of regulatory processes
Term
What is considered to be the body's internal environment when discussing homeostasis?
Definition
interstitial fluid
Term
What makes up extracellular fluid?
Definition
NOT fluid inside cells
Term
What makes up a feedback system?
Definition
receptor, control center, effector (input and output)
Term
If a response enhances the original stimulus, the system is classified as a what kind of feedback system?
Definition
positive
Term
What conditions will make it difficult ot maintain homeostasis?
Definition
disease and disorder
Term
What are teh signs of infection?
Definition
skin lesions; body temp rises: enlarged liver; swollen lymphnodes
Term
What are some of the typical symptoms of disease?
Definition
nausea, headache, anxiety
Term
What would be an example of a local disease? of a systemic one?
Definition
strep throat, pink eye, athlete's foot


systemic: flu
Term
Diagnosis of disease usually involves what?
Definition
patient's symptoms/signs; medical history; physical exam; lab test
Term
What is the correct anatomical position?
Definition
standing erect, facing observer; head level, face forward; flat feet directed forward; arms @ sides w/ palms facing upward
Term
Axillary refers to what
Definition
armpit
Term
Popliteal refers to what?
Definition
the hollow behind the knee
Term
Cephalic refers to what?
Definition
head
Term
A plane or section that divides an organ such that you could view an inferior surface of the section of that organ would be a
Definition
transverse
Term
A mid-sagittal plane divides the body into
Definition
equal right and left parts
Term
Define inferior and superior.
Definition
inferior: towards the bottom of an organism
superior: towards the head of an organism
Term
What is the relationship b/t the right plantar region and the right femoral region?
Definition
The right plantar region is distal and ipsilateral to the right femoral region
Term
What is located in the ventral cavity?
Definition
?!?!?!?
Term
What is located in the pelvic cavity?
Definition
urinary bladder; portions of large intestine; internal reproductive organs
Term
What does the cranial cavity contain?
Definition
brain
Term
What produces a sonogram?
Definition
ultrasound scanning: sound waves from handheld wand reflect off body tissues and are detected by same device
Term
What makes up a sensory nerve ending?
Definition
receptor
Term
The four elements making up about 96% of body's mass are represented by the chemical symbols of...
Definition
O (oxygen) N (nitrogen) H (hydrogen) C (carbon) CHON
Term
Which elements have ionic forms critical to muscle contraction and action potential generation?
Definition
potassium, sodium, calcium
Term
The smallest unit of matter that retains teh properties and chracteristics of an element is the
Definition
atom
Term
Which subatomic particles are negatively charged?
Definition
electrons
Term
What are isotopes?
Definition
atoms of the same element that have the same number of protons but different number of neutrons (same atomic number, but different mass number)
Term
A physician suspects a patient may have a thyroid tumor. Which radioisotopes will help the physician confirm the initial diagnosis?
Definition
tracers; iodine-131
Term
What is an ion and why?
Definition
an electrically charged ion; charged b/c of losing or gaining electrons
Term
What is a compound?
Definition
substance w/ atoms of two or more different elements
Term
What are ionic compounds?
Definition
compounds formed by the losing or gaining of electrons
Term
What kind of chemical bond is found b/t two oxygen atoms/
Definition
double nonpolar covalent bond
Term
What compounds are polar covalent?
Definition
Water is!!
Term
Explain hydrogen bonds
Definition
hydrogen atom w/ partial positive charge attrcts partial negative charge of electronegative atoms; weak bonds; apparent in larger molecules to help w/ stability
Term
Explain glycolysis
Definition
the breaking down of glucose into pyruviac acid; exergonic
Term
What is an acid?
Definition
substance that dissociates into one or more H+ and one or more anions
Term
What is a salt?
Definition
a substance that dissociates into cations and anions
Term
What body fluids are alkaline, and which are acidic?
Definition
acidic: gastric juice, vaginal fluid, urine, saliva
alkaline: blood, cerebrospinal fluid, semen, pancreatic juice, bile
Term
What are buffers?
Definition
convert strong acids and bases into weak ones
Term
A common buffer found in extracellular fluid is
Definition
the bicarbonate ion
Term
Specific arrangements of atoms that cause organic molecules to have particular chemical properties are called
Definition
functional groups
Term
What are carbohydrates?
Definition
source of chemical energy for generating ATP
Term
An example of polysaccharides in humans is
Definition
glycogen
Term
What is true of lipids
Definition
they do not dissolve easily in water
Term
Glycerol is the backbone molecule for
Definition
triglyceride
Term
A fatty acid with only single covalent bonds is said to be
Definition
saturated
Term
Enzymes and antibodies are examples of
Definition
proteins
Term
In proteins, the folding of the unit on itself is referred to its
Definition
tertiary structure
Term
What are enzymes?
Definition
biological catalysts
Term
What do nucleotides contain?
Definition
base, pentose sugar, phosphate group
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