CCBC BIOLOGY 109 EXAM 1
Burns - ANSWERS-Vary in severity; more damage; 1st degree, 2nd
degree, 3rd degree
1st degree - ANSWERS-Mild pain, no formation of blisters
2nd degree - ANSWERS-Formation of blisters
3rd degree - ANSWERS-Pain around the burn area, numbness
indicates 3rd degree, most skin functions are lost.
Consequences of Burns - ANSWERS-Skin receives large percentage
of blood flow; with damage, there can be severe fluid loss and
consequent shock
-Large loss of water, plasma, proteins, resulting in edema and
hypovolemia, leading to drop in blood pressure
- Bacterial infection can occur- Absence of protective intact skin
covering
- immune cells unable to reach site of injury due to changes in blood
flow and blood pressure
,Skin Cancers - ANSWERS-Excessive UV radiation exposure, can
lead to development of skin cancer
Basal Cell - ANSWERS-78% of all skin cancers, Slow growing
tumors; low metastasis rate, Arise from the stratum Basale.
Squamous Cell - ANSWERS-20% of all skin cancers, arise from
squamous cells in epidermis- from persisting lesions.
Malignant Melanoma - ANSWERS-2% of all skin cancers; however
most aggressive form, arise from melanocytes, metastasizes rapidly,
can lead to fatality within months of diagnosis
ABCDE Rule - ANSWERS-Asymmetry- MMs lack symmetry
Border- MMs have irregular borders
Color-MMs are Uneven coloration
Diameter- MMs are larger
Evolving- MMs change in size
Skeletal System
Functions - ANSWERS--Support- holds up body
-Protection- brain
-Movement- levers, action of muscle
-Mineral storage and release- calcium and phosphate ions
, -Blood cell production- red bone marrow is the chief producer of
blood cells
-Triglyceride (Lipid) storage- yellow bone marrow
Organic matter - ANSWERS-synthesized by osteoblast
Inorganic matter - ANSWERS-85% hydroxyapatite (Crystallized
calcium phosphate salt), 10% calcium carbonate, other minerals
Endochondral Ossification - ANSWERS-Growth of length in long
bones. Constantly replacing cartilage with bone.
Osteoblasts _____________ and ___________ new cartilage which is
eventually replaced by bone resulting in bone size increasing -
ANSWERS-multiply, lays
Osseous Tissue - ANSWERS-Metabolically active organ
Reservoir for 99% of the body's calcium
Calcium and phosphate levels in the blood are highly regulated
Hormones that regulate calcium/phosphate homeostasis
Negative feedback
Homeostasis (Calcium) - ANSWERS-Activated from the Digestive
System, Kidneys, and Skeletal
Burns - ANSWERS-Vary in severity; more damage; 1st degree, 2nd
degree, 3rd degree
1st degree - ANSWERS-Mild pain, no formation of blisters
2nd degree - ANSWERS-Formation of blisters
3rd degree - ANSWERS-Pain around the burn area, numbness
indicates 3rd degree, most skin functions are lost.
Consequences of Burns - ANSWERS-Skin receives large percentage
of blood flow; with damage, there can be severe fluid loss and
consequent shock
-Large loss of water, plasma, proteins, resulting in edema and
hypovolemia, leading to drop in blood pressure
- Bacterial infection can occur- Absence of protective intact skin
covering
- immune cells unable to reach site of injury due to changes in blood
flow and blood pressure
,Skin Cancers - ANSWERS-Excessive UV radiation exposure, can
lead to development of skin cancer
Basal Cell - ANSWERS-78% of all skin cancers, Slow growing
tumors; low metastasis rate, Arise from the stratum Basale.
Squamous Cell - ANSWERS-20% of all skin cancers, arise from
squamous cells in epidermis- from persisting lesions.
Malignant Melanoma - ANSWERS-2% of all skin cancers; however
most aggressive form, arise from melanocytes, metastasizes rapidly,
can lead to fatality within months of diagnosis
ABCDE Rule - ANSWERS-Asymmetry- MMs lack symmetry
Border- MMs have irregular borders
Color-MMs are Uneven coloration
Diameter- MMs are larger
Evolving- MMs change in size
Skeletal System
Functions - ANSWERS--Support- holds up body
-Protection- brain
-Movement- levers, action of muscle
-Mineral storage and release- calcium and phosphate ions
, -Blood cell production- red bone marrow is the chief producer of
blood cells
-Triglyceride (Lipid) storage- yellow bone marrow
Organic matter - ANSWERS-synthesized by osteoblast
Inorganic matter - ANSWERS-85% hydroxyapatite (Crystallized
calcium phosphate salt), 10% calcium carbonate, other minerals
Endochondral Ossification - ANSWERS-Growth of length in long
bones. Constantly replacing cartilage with bone.
Osteoblasts _____________ and ___________ new cartilage which is
eventually replaced by bone resulting in bone size increasing -
ANSWERS-multiply, lays
Osseous Tissue - ANSWERS-Metabolically active organ
Reservoir for 99% of the body's calcium
Calcium and phosphate levels in the blood are highly regulated
Hormones that regulate calcium/phosphate homeostasis
Negative feedback
Homeostasis (Calcium) - ANSWERS-Activated from the Digestive
System, Kidneys, and Skeletal
