final Flashcards
homeostasis
maintenance of stable internal conditions
positive feedback
responds to a stimulus by making it more extreme. Ex. blood clot, your body keeps sending platelets to the wound to stop the blood flow.
steps of homeostasis
1)Stimulus2)receptor3) input sent down afferent pathway 4) control center 5) Output sent down efferent pathway to an effector 6) Response of the effector to the output
Site of ATP synthesis
mitochondria
Site of protein synthesis
ribosome
Package, modify, and segregate proteins
golgi apparatus
Cytoskeletal element
centrioles
toxic avenger of cell
peroxisome
Site of lipid and steroid synthesis
smooth endoplasmic reticulum
Site of ribosome subunit manufacture
nucleolus
osmosis
diffusion of water
chromatin
region of the nucleus that houses dna. Can join together to form chromosomes during mitosis.
hyaline cartilage
flexibility
larynx
ionic bond
when an electron is completely transferred from one atom to another
pinocytosis
Cell “gulps” droplets of extracellular fluid containing
dissolved proteins or fats
anatomy
Study of the structure and shape of the body
and its parts
physiology
Study of how the body and its parts work or
function
axis
sencond cervicle vertebrae that allows the head to turn left and right
fontanel
connect cranial bones during first two years of life
acetabulum
joint formed by the femur and the inominate bone
arrector pilli
Pulls hairs upright when person is cold or frightened
most deadly skin cancer
malignant melanoma
Pascinian corpuscle
deep pressure receptor
bursa
flattened fibrous sacs Lined with synovial membranes and Filled with synovial fluid
pth
Parathyroid hormone: released when blood calcium levels are low, Activates osteoclasts (bone-destroying cells), and Osteoclasts break down bone and release calcium ions into the blood
compressed fracture
bone is crushed
bones that compose the bony pelvis
inominate bones, sacrum, coccyx
flat bone is composed of
two layers of compact bone that surround spongy bone
patella is a
fhort bone
___ layers in thick skin
5
___ layers in thin skin
4
costal cartilage is made of
hyaline cartilage
suture is a
fibrous joint
types of cartilaginous joints
2
hair is a
appendage to the skin
bones that form the orbit
frontal palatine maxilla zygomatic ethmoid sphenoid lacrimal