Flashcards in Exam 4 Deck (78)
What is the difference between tissue and organs?
A tissue is a group of cells that work together to form a function, while an organ is different types of tissue organized together to perform a task
How do organs or organ systems work together?
Physically and or chemically
four types of tissue
epithelial, connective, muscle, nervous
sheet like, covers external surfaces and lines interior areas
connects body structures, (loose - holds organs in place, dense or specialized
not stretchy, makes up organs like deep skin and kidneys
orderly rows, elastic,
specialized connective tissue
bone (hardened), cartilage (rubbery)
main body energy reservoir
fluid transportation medium
what does blood contain?
plasma, red blood cells, white blood cells, platelets
smooth muscle tissue
stomach, bladder, uterus
attach to bone and are responsible for movement
only found in the heart wall, typically involuntary, contracts as a unit in response to nervous signals
why does cardiac muscle have a high level of mitochondria?
so that it can produce ATP quickly
composed of neurons and cells that support them
composed of long lines of neurons
body's largest organ
skin's two layers
epidermis and dermis
hair consists mainly of this tough protein
what kind of tissue is blood
tendons and ligaments are what kind of tissue?
three types of skeletons
hydrostatic skeleton, exoskeleton and endoskeleton
muscles contract to press internal fluid against the body walls.
earthworms and sea anemones have this kind of skeleton
a rigid external protective covering the outside of invertebrates like arthropods.
arthropods like the insects, crustaceans, arachnids have this kind of skeleton
consists of internal bones
directly or indirectly connects all the bones of the skeletal system.