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Earthworm integumentary
Skin is one cell layer with mucus gland
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Earthworm skeletal
No bones - hydrostatic support
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Earthworm muscular
Longitudinal and circular muscles; each segments muscles are independant of the other segments
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Earthworm urinary
A pair of nephrida per segment
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Earthworm respiratory
Through skin
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Earthworm circulatory
Closed, using hemoglobin as oxygen carriers - aortic arches are pumps
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Earthworm nervous
Dorsal brains; ventral nerve cord, with ganglia in each segment
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Earthworm endocrine
Hormones secreted by nervous system
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Earthworm reproductive
Male and female parts both present
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Earthworm digestive
Mouth, pharynx, esophogus, crop, gizzard, intestine, anus
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Fish respiratory
Gills used for gas exchange
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Fish circulatory
2-chambered heart (no separation of oxygenated and deoxygenated)
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Fish reproductive
Usually externally fertilized
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Fish excretes nitrogen with...?
Kidney
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Human excretes nitrogen with...?
Kidney
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Worm excretes nitrogen with...?
Nephridia
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Fish transports nutrients with...?
Two chambered heart
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Human transports nutrients with...?
Four chambered heart
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Worm transports nutrients with...?
Aortic arches
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Fish reproductive system is...?
Mostly external
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Human reproduction is...?
Internal
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Worm reproduction is...?
Hermaphrodites (asexual)
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Fish regulate body temperature...?
Externally (mostly)
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Humans regulate body temperature...?
Internally
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Worms regulate body temperature...?
Externally
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Location: epithelial tissue
Lines most body surfaces, protects tissues from dehydration
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Location: cardiac muscle
Involuntary muscle found in the heart, continuously pulsing to pump blood through the body.
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Location: smooth muscle
Involuntary muscle that lines the walls of blood vessels and hollow organs
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Location: connective tissue
Includes fat, tendons, cartilage, bone, and blood; supports, protects, and insulates the body
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Location: neurotransmitter
In the nerves; triggered by a nerve impulse at an axon terminal of a presynaptic neuron as part of the signal (?)
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Function: kidney
Filter fluid from the blood, then concentrate the metabolic wastes and excrete them as concentrated urine; also regulate the water content of the body
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Function: lungs
Oxygen from the air is exchanged with CO2 from the blood
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Function: Skin
Protects the body from injury, provides the first line of defense against disease, helps regulate body temperature, and prevents the body from drying our through evaporation.
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Function: Intestines
Act as holding places for food, as well as acts as part of the digestion process (?)
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Function: Liver
Controls blood sugar, modifies amino acids, monitors the production of cholesterol, and detoxifies poisons
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Function: Pancreas
Secretes hormones for controlling blood sugar
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Function: Heart
Pump blood throughout the body
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Purpose: Digestive
Extracts and absorbs nutrients from food; removes wastes; maintains water and chemical balances
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Purpose: Circulatory
Transport nutrients, wastes, hormones, and gases
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Purpose: Lymphatic
Collect extracellular fluid and return it to the blood
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Purpose: Skeletal
Protects and supports the body and organs; interacts with skeletal muscles, produces red blood cells, white blood cells, and platelets
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Purpose: Endocrine
Regulates body temperature, metabolism, development, and reproduction; maintains homeostasis; regulates other organ systems; hormones
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Purpose: Reproductive
Produces gametes and offspring
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Purpose: Integumentary
Protects against injury, infection, and fluid loss; helps regulate body temperature
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Purpose: Respiratory
Moves air into and out of lungs; controls gas exchange between blood and lungs
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