Chapter 2: Body Organization and Medical Care Flashcards
Levels in the body
- cell
- tissue
- organ
- organ system
- body
abdomin/o
abdomen
adip/o
fat
aer/o
air
anter/o
front
brachi/o
arm
cardi/o
heart
caud/o
tail
cephal/o
head
cervic/o
neck
chondr/o
cartilage
crani/o
skull
crin/o
to secrete
crur/o
leg
cyt/o
cell
dermat/o
skin
dist/o
away from
dors/o
back of body
epitheli/o
epithelium
eti/o
cause
glute/o
buttock
hist/o
tissue
infer/o
below
inguin/o
groin
later/o
side
lumb/o
loin or low back
lymph/o
lymph
medi/o
middle
muscul/o
muscle
nucle/o
nucleus
orth/o
straight, upright
ox/o
oxygen
pariet/o
cavity wall
ped/o
child, foot
pelv/o
pelvis
peritone/o
peritoneum
pleur/o
pleura
poster/o
back
proct/o
rectum and anus
proxim/o
near to
pub/o
genital region
pulmon/o
lung
somat/o
body
spin/o
spine
super/o
above
thorac/o
chest
ur/o, urin/o
urine
vascul/o
blood vessel
ventr/o
belly
vertebr/o
vertebrae
viscer/o
internal organ
Individual cells perform functions
- reproduction
- hormone secretion
- energy production
- excretion
Special cells carry out these functions
muscle contraction and nerve pulse transmission
2 types of mature cells
1- somatic cells
2- gametes
Somatic cells
the vast majority of cells in the body; each carries the full 46 chromosomes
Gametes
reproductive cells; carry only 23 chromosomes
Stem cells
the ability to differentiate into any other type of cell in the body
4 types of tissue
- muscle
- epithelial
- connective
- nervous
3 types of muscle tissue
- skeletal muscle is attached to bone
- smooth muscle (visceral) is found in organs
- cardiac muscle is found in the heart
Epithelial tissue
forms the lining of internal organs and the skin
Epithelial tissue is made of close-packed cells that do 4 things
- protect (skin)
- absorb (lining of intestine)
- secrete (sweat glands)
- excrete wastes (kidney tubules)
Connective Tissue
supports and protects the body
Different forms of connective tissue
- adipose
- bone
- cartilage
- tendons
Nervous tissue
composed of cells called neurons, form in the brain, spinal cord, and nerves
Integumentary system
forms a two-way barrier, aids in temperature regulation
Organs in the integumentary system
- skin
- hair
- nails
- sweat glands
- sebaceous glands
Musculoskeletal System
supports and protects the body; forms blood cells and stores minerals; produces movement
Organs in the musculoskeletal system include
- bones
- joints
- muscles
Cardiovascular system
pumps blood to transport nutrients, oxygen, and wastes
Organs in the cardiovascular system include
- heart
- arteries
- veins
Blood (Hematic) System
transports oxygen, protects against pathogens, and controls bleeding
Blood system includes
- plasma
- erythrocytes
- leukocytes
- platelets