body systems, stem, homeostasis test 3 Flashcards
what is a stem cell
an undiffreintiated cell that can become specialized
what is a stem cell niche
an environment around the stem cell that protects it, grows it and keeps it form diffrenciating
what happens if a niche doesn’t function properly
the stem cell either dies or diffrentiates
what can a brain stem cell niche become
neurons or glial cells
what is a main place stem cells are fund
bone marrow
what cells come from the bone marrow
white blood cells, red blood cells, platelets
what cells come form a hair follicle cell niche
hair follicle cell, skin cell, oil gland cell,
what are embryonic stem cells
stem cells formed as a normal part of embryonic developpment
what cells can be made from embryonic stem cells
any body cell
how are IPS cells made
artificially by reprogramming a patients own cells
therapeutic cloning
transferring the nucleus (DNA) from a body cell to an unfertilized egg
what is cell diffrientation
a stem cell becoming specialized
what are the 11 body systems
respiratory, reproductive, nervous, circulatory/cardiovascular, excretory, integumentary, endocrine, muscular, skeletal, immune, digestive
function of the respiratory system
inhale oxygen and get rid of CO2
what pumps air in respiratory system
the lungs
main organs of the respiratory system
trachea, mouth, lungs, nose
function of the reproductive system
to produce gametes, fertiliztion and carrying child until childbirth
main female reproductive organs
cervix, uterus, fallopian tubes, ovaries
main male reproductive organs
testes, penis, scrotum
what systems need to work together so that the mother can carry her child
reprodctive and endocrine
what is the function of the nervous system
to send and receive signals from the brain .
main components of the nervous system
neurons, spinal cord, hypothalamus, brain
function of the circulatory/ cardiovascular system
pump blood to transport oxygen, gases, hormones and heat round the body
main parts of circulatory/cardiovascular system
heart, blood vessels
what is the function of the excretory system
filtration and eliminatig LIQUID waste
does the excretory system eliminte solid waset
no thats digestive system
most important organ in the excretory system
kidneys
major structure in excretory system
bladder, urethra, kidneys
what is the function the integumentary
to protect the internal orgnas, and be a line of defense against infection
3 things that make up integumentary system
hair, skin, nail
what other important thing does the integumentary system do
warm and cool body
function of endocrine system
chemical communication throuogh hormones .
what major things does the endocrine system control ad regulate
body temp, metabolism, development, reproduction, other organ systems
main structure of the endocrine system
hypothalamus, pituary gland, pancreas, pineal gland, adrenal glands, thyroid, parathyroid, testes, ovaries
2 structure of endocrine system also in other systems
the hypothalamus in nervous, the pancreas in digestive
what is the function of the muscular system
allow movement of the body
what are the three main types of muscle tissue
smooth, cardiac, skeltal
what is the function of the skeltal system
shape structure, and protect organs
what do platelets do
stop bleeding by clotting
what is the function of the immune system
to defend against pathogens or diseases
what are the main parts of the immune system
white blood cells, skin .
what is the function of the digestive system
break down food for ATP, absorb nutrients and eliminate solid waste
main parts of the digestive system
moith, esophagus, stomach, liver, small and large intestine, anus, pancreas
which body systems are your line of defense against disease
integumentary and immune
which body systems help you react to a threat or scare .
endocrine, nervous, muscular
which body systems maintain body heat and temp
endocrine, nervous, integumentary
what systems heal you after a cut
integumentary , immune
two types of plants
vascular and non-vascular
non-vascular mean
no stem
vascular means
yes stem
how do seedless vascular plants reproduce
spores
what are gymnosperms
plants that produce sexually with cones
what are angiosperms
plants that reproduce witha flower and fruit
what is the function of the stem
to support plant and transport materials
what human system is the stem liek
circulatory
what does the xylem do?
transport water and minerals
what does pholoem do
transport sugar
what is the function of roots inplants
store food, anchor plant, supply and absorb wate rand minerals
what human is system are roots like
digestive system
what is the funtion of the leaf .
photosynthesis
what is the reproductive system of angiosperm plants
the flower
what is he function of the petals
to attract birds, insects for pollination
what is the male angiosperm reproductive organ
the stamen
what are the parts of the stamen
filament- stem,,, and the anther- the top part where pollen is
what is the female plant reproductive organ
the pistil
parts o the pistil
stigma- the top part, style- the tube, ovary at the bottom
what is inside ovary
ovule
what does ovary become when fertilzed
a fruit
what is a negative feedback loop
trying to keep a target poit constant
whihc type of loop helps maintain homeostais
negative
examples of negative feedback loops
body temp, glucose levels
what happens when glucose levels get too high
insulin
what happens when glucose levels get too low
glucagon
what is a positive feedback loop
intensifying, accumilating or accelerating something
examples of postive feedback loops
fruit ripening, childbirth
