Ch. 2 Human Body in Health & Disease Flashcards
vertical plane
up and down
midsaggital plane
divides equal left and right
saggital plane
divides unequal left and right
frontal/coronal plane
divides front and back
transverse plane
divides upper and lower
ventral
front
dorsal
back
anterior
situated in front
posterior
situated in back
superior
uppermost, above
inferior
lowermost, below
cephalic
toward head
caudal
toward feet
proximal
nearest beginning of structure
distal
nearest end of structure
medial
towards midline
lateral
away from midline
cranial cavity
within skull, surround brain
spinal cavity
within spinal column, protects cord
abdominal cavity
contains major digestive organs
pelvic cavity
space formed by hipbones, contains major GU organs
cells
basic structures/units of body
cell membrane
tissure surrounds and protects cell
cytoplasm
material inside cell, not including nucleus
cytology
study of anatomy, physiology of cell
nucleus
controls activities of cell and help cell divide
chromosomes
DNA inside nucleus
stem cells
unspecialized cells
somatic cells
any cell except gametes
tissue
group or layer of specialized cells that join to perform specific function. epithelial, connective, muscle, and nerve
histology
study of structure, composition, and function of tissure
Epithelial Tissue
protective covering of all internal and external surfaces of body. made of epithelium and endothelium
epithelium
epidermis of skin and surface layer of mucous membranes
endothelium
lines blood and lymph vessels, body cavities, glands, and organs
Connective Tissue
support and connect organs and other body tissues. Dense, Adipose, Loose, and Liquid
Dense Connective tissue
bone and cartilage. forms joints and structure
Adipose tissue
fat. protection, padding, insulation, and support
Loose Connective tissue
surround organs and support nerve cells and blood vessels
Liquid Connective tissue
blood and lymph. transports nutrients and waste throughout body
Muscle Tissue
has ability to contract and relax
Nerve Tissue
cells that react to stimuli and conduct electrical impulses
Aplasia
incomplete development of organ/absence of organ or tissue
Hypoplasia
incomplete development of organ or tissue due to deficiency in number of cells
Anaplasia
change in structure of cells and orientation together. tumors
Dysplasia
abnormal development or growth of cells, tissues, or organs
Hyperplasia
enlargement of organ/tissue due to abnormal increase of cells
Hypertrophy
general increase in bulk of body part to increase in size. not number of cells, but size of cells. not tumor
Gland
group of epithelial cells capable of producing secretions. Exocrine and Endocrine
Exocrine Glands
secrete chemical substances in ducts that lead out of body or to organs (sweat glands)
Endocrine Glands
produce hormones. no ducts. secreted directly into bloodstream and transported to organs
Aden/o
gland
-crine
secrete
-carcin
cancer
-oma
tumor
adenitis
inflammation of gland
adenoma
benign tumor in glandular tissue
adenocarcinoma
malignant tumor that originates in glandular tissue
adenomalacia
abnormal softening of gland
adenosis
disease condition of a gland
adenosclerosis
abnormal hardening of gland
adenectomy
surgical removal of gland
etiology
study of causes of diseases
endemic
ongoing presence of disease in population (common cold)
epidemic
sudden widespread outbreak within a population (measles)
pandemic
outbreak over large geographical area
communicable disease
contagious. any condition transmitted form person to person
functional disorder
symptoms with no physiological or anatomical cause that can by identified
idopathic disorder
illness without a cause
iatrogenic illness
unfavorable response due to prescribed medical treatment
infectious disease
illness caused by a living pathogenic organism, bacteria, or virus
nosocomal infection
disease acquired in hospital or clinical setting
organic disorder
symptoms caused by detectable physical changes in body
congenital disorder
abnormal condition at time of birth. caused by developmental disorder, prenatal influences, premature birth, or injuries during birthing process
developmental disorder
birth defect. can result in malformation, such as absence of limb or an extra toe.
Atresia
congenital absence of a normal opening (anal atresia)