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