Lecture Exam One: Flashcards
What are the survival needs?
- nutrients
- oxygen
- water
- normal body temperature
- appropriate atmospheric pressure
At high altitudes where atmospheric pressure is lower, you might expect that oxygen acquisition would […].
decrease
Food that is inside your digestive tract is outside of your body.
true
What are the 8 requirements for life?
- maintaining boundaries
- movement
- responsiveness
- digestion
- metabolism
- excretion
- reproduction (cellular)
- growth
When the anatomy of a body part is intimately tied to its specific function, scientists call this the principle of […].
complementarity
What is the definition of homeostasis?
ability to maintain relatively stable internal conditions even though the outside world changes continuously
Example of negative feedback mechanism?
thyroid gland releases thyroid hormone under the influence of the hormone TSH (release decreases when thyroid hormone levels reach their set point)
Positive feedback examples:
- nuclear bombs
- parturition (birthing)
- blood clotting
- upstroke of the nerve action potential
- LH surge
If someone has broken a leg, he or she has damaged the […] division of the body.
appendicular
Which anatomical section divides body vertically into right and left parts?
midsagittal
Which anatomical section would you use if you wanted to compare that anatomy of the L/R lung after COVID-19 infection?
frontal
Living systems differ from nonliving systems in that…
living systems combine simple elements in unique combinations (CHON = 96%)
Which isotopes of hydrogen are radioactive?
tritium
** (1p; 2n; 1e)
When atoms of two different elements bind together, they form a(n) […].
compound
Which of the following mixture(s) are homogeneous?
solutions
Solute particle by increasing size:
solution < colloid < suspension
Solute that settles out and scatters light:
suspension
Solute that does not settle out but scatters light:
colloid
The most important determinant of an atom’s bonding behavior is […].
the number of valence shell electrons
Exergonic reactions result in a net […]. An example of this would be […] or […] reactions.
release of energy; catabolic; oxidative
Endergonic reactions result in net […]. An example of this would be […] reactions.
absorption of energy; anabolic
Most abundant inorganic compound is […].
water
What are the properties that allow water to be the most important inorganic compound?
- high heat capacity
- high heat of vaporization
- polar solvent properties
- reactivity
- cushioning
The three major subclasses of lipids include phospholipids, steroids, and […].
triglycerides
The most important steroid is […].
chloesterol
Linking monomers together is done by […], breaking of those bonds is done by […].
dehydration synthesis; hydrolysis
The quaternary level of protein structure involves […].
aggregations of polypeptides forming a complex protein
ATP has what 3 types of work?
- transport (phosphorylates transport proteins)
- mechanical (muscle contraction)
- chemical (energy absorbing reactions)
Generalized cell have what 3 basic components?
- plasma membrane
- cytoplasm
- nucleus
What stabilizes the membrane while decreasing the fluidity of the membrane?
cholesterol
To be viewed under a microscope, tissue must be:
- fixed
- sectioned
- stained
List relationships between a tissue and its general function:
- epithelial– boundary
- connective– support
- muscle– movement
- nervous– control
An area in the body exposed to the external environment would be composed of which of the following tissue types?
epithelial
What are the main functions of epithelial tissue?
- protection
- absorption
- filtration
- excretion
- secretion
- sensory receptor
What are the 5 distinguishing characteristics of epithelial tissue?
- polarity
- specialized contacts
- supported by connective tissues
- avascular, but innervated
- regeneration
The basal lamina arises from which type of tissue?
epithelial
List the type of cartilages:
- hyaline
- elastic
- fibrocartilage
Abundant cartilage:
hyaline
Where can you find hyaline cartilage?
- tips of long bones
- nose
- trachea
- larynx
- ribs
Where can you find elastic cartilage?
- ears
2. epiglottis
Fibrocartilage can be found…
intervertebral discs and knee
You would expect to find […] fibers in areas that undergo a lot of stretch and rebound.
elastic
Which of the following types of cartilage is compressible and resists tension well?
fibrocartilage
T/F: Cartilage is vascular?
false
gets supply of nutrients from perichondrium surrounding
Perichondrium gives rise to…
chondroblasts and chrondrocytes
What secretes the matrix in each type of connective tissue:
- connective tissue proper = fibroblasts
- cartilage = chondroblasts
- bone = osteoblasts
- blood =
T/F: Bone is vascular?
true
Bone is the site for […] formation or hematopoiesis.
blood cell
Of the four main classes of connective tissue, which has the least solid ground substance?
blood
Blood’s matrix:
plasma
Which of the following undifferentiated cells of connective tissue do not secrete the matrix of the tissue with which they are associated?
hematopoietic stem cells
Striated muscle:
skeletal
Which muscle cells are spindle shaped?
smooth
The primary functional cell found in nervous tissue:
neurons
Which of the following types of membranes is the driest?
cutaneous
Which of the following types of membranes line body cavities that are open to the exterior?
mucous
Which of the following types of membranes cover internal organs like the stomach?
serous
Logical sequence of events in wound healing:
- inflammation
- organization
- granulation
- tissue deposit
- regeneration
Of the three primary germ layers, which is responsible for developing into nervous tissue?
ectoderm
Muscle and connective tissues arise from:
mesoderm
Epithelial tissues arise from…
all three germ layer
Inner lining of the digestive system arise from…
endoderm
Which layer of the epidermis contains only dead cells?
stratum corneum
Which layer of the epidermis is known as the clear layer?
stratum lucidum
Stratum lucidum can only be found…
in thick skin like palms or soles
Fingerprints are copies of […].
friction ridges
The principal tissue found in the reticular layer is […].
dense irregular connective tissue
Blisters:
fluid-filled pockets that separate epidermal and dermal layers
The principle role of melanin is to […].
shield the nucleus from damage by UV
Three pigments that contribute to skin color?
carotene, melanin, hemoglobin
Which of the following skin colors may indicate anemia?
pallor/blanching/pale
Which of the following skin colors indicate low oxygen levels?
blue skin
Erythema indicates…
fever, hypertension, inflammation, allergy
Jaundice indicates…
liver disorder
Bronzing of the skin indicates…
inadequate steroid hormones (Addison’s disease)
Function of hair:
- protect from heat loss
2, warn of insects - shield skin from sunlight
- guards against physical trauma
Which regions of your body are not covered by hair?
- palms
- soles
- portions of the genitalia
- nipples
Hair root layer (superficial to deep):
cuticle, cortex, medulla
A female patient with excessive facial hair growth may have which of the following ailments?
excessive secretion of androgens from an adrenal tumor
Which of the following would cause hair loss?
- drugs– antidepressants, blood thinners, steroids, chemotherapeutic
- protein-deficient diets
- acutely high fever
- severe emotional trauma
- alopecia areata
The white part at the bottom of your finger nail is called the […].
lunula
The anatomical name for the cuticle is called the […].
eponychium
There are two main types of sweat glands, eccrine (merocrine) and […].
apocrine
[…] and […] don’t contain sweat glands.
external genitalia and nipples
Which of the following types of sweat gland secretion is though to deter insects?
ceruminous
T/F: Sebaceous (oil) glands are relatively inactive until puberty when they are stimulated by hormones (androgens).
true
Oil glands cannot be found in areas of […].
thick skin
Sebaceous glands secrete […] via […].
sebum; holocrine
Secretion of sebum is needed for […] and to soften […].
bactericidal; hair and skin
Sebum provides protection against […].
harmful bacteria
Cradle cap is also known as […]. It is a skin condition typicall found in […].
seborrhea; newborn
The skin plays a role in the manufacture of vitamin […].
D