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Lecture 9 - circulation 1 all Questions & answers
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Lecture 9 - circulation 1circulation and respiration transports-✅✅ body fluids and respiratory
gases around the body
circulatory main function- ✅✅ move blood and lymph through the body
✅✅
by moving blood and lymph, results in -delivered to body and removal of
-- nutrients and O2, waste products
✅✅
circulatory system is necessary to regulate - balance and protects from
-- temperature, osmolarity, and pH, disease
cnidarians are- ✅✅ jellyfish and hydra
cnidarians and flatworms have a central- ✅✅ gastrovascular cavity
✅✅
gastrovascular cavity serves both in - of substances throughout the
body- digestion and distribution
thin body or body walls allow - between cell layers-✅✅ diffusion
✅✅ true circulatory system
animals with multiple cell layers require a --
true circulatory systems consist of a --✅✅ muscular pump and circulatory
fluid within vessels
unicellular organisms and small metazoans lack - and rely on --✅✅
circulatory systems, diffusion
large animals move fluid through their bodies by- ✅✅ bulk flow or
convective transport
✅✅ short distances
diffusion is rapid over-
, ✅✅
circulatory systems move fluids by increasing the - of the fluid in one part of
the body- pressure
three main components of circulatory system- ✅✅ pump, tubes, fluid
types of pumps- ✅✅ chambered hearts, skeletal muscle, pulsating blood
vessels, one way valves
chambered hearts are- ✅✅ contractile chambers
skeletal muscles squeeze on vessels to generate -- ✅✅ pressure
pulsating blood vessels perform -, rhythmic contractions-✅✅ peristalsis
✅✅
contractile chambers increase blood pressure in a closed chamber
through- contractions of their muscular walls
skeletal muscles contract, -, and relax, -- ✅✅ squeezing vessels,
expanding vessels
✅✅
contractile blood vessels and perstaltic hearts push blood using waves of
-- rhythmic contraction
in multicellular animals, body fluids are divided into- ✅✅ intracellular and
extracellular compartments
✅✅ body cells
intracellular fluid is the collective fluid inside the-
✅✅ surrounding cells
extracellular fluid is the fluid-
extracellular fluid is subdivided into-✅✅ blood plasma and interstitial fluid
in closed circulatory systems, the blood plasma is within-✅✅ blood
vessels
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